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Understanding IP Address Assignment: A Complete Guide

Introduction

In today's interconnected world, where almost every aspect of our lives relies on the internet, understanding IP address assignment is crucial for ensuring online security and efficient network management. An IP address serves as a unique identifier for devices connected to a network, allowing them to communicate with each other and access the vast resources available on the internet. Whether you're a technical professional, a network administrator, or simply an internet user, having a solid grasp of how IP addresses are assigned within the same network can greatly enhance your ability to troubleshoot connectivity issues and protect your data.

The Basics of IP Addresses

Before delving into the intricacies of IP address assignment in the same network, it's important to have a basic understanding of what an IP address is. In simple terms, an IP address is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. It consists of four sets of numbers separated by periods (e.g., 192.168.0.1) and can be either IPv4 or IPv6 format.

IP Address Allocation Methods

There are several methods used for allocating IP addresses within a network. One commonly used method is Dynamic Host Configuration Protocol (DHCP). DHCP allows devices to obtain an IP address automatically from a central server, simplifying the process of managing large networks. Another method is static IP address assignment, where an administrator manually assigns specific addresses to devices within the network. This method provides more control but requires careful planning and documentation.

Considerations for Efficient IP Address Allocation

Efficient allocation of IP addresses is essential for optimizing network performance and avoiding conflicts. When assigning IP addresses, administrators need to consider factors such as subnetting, addressing schemes, and future scalability requirements. By carefully planning the allocation process and implementing best practices such as using private IP ranges and avoiding overlapping subnets, administrators can ensure smooth operation of their networks without running out of available addresses.

IP Address Assignment in the Same Network

When two routers are connected within the same network, they need to obtain unique IP addresses to communicate effectively. This can be achieved through various methods, such as using different subnets or configuring one router as a DHCP server and the other as a client. Understanding how IP address assignment works in this scenario is crucial for maintaining proper network functionality and avoiding conflicts.

Basics of IP Addresses

IP addresses are a fundamental aspect of computer networking that allows devices to communicate with each other over the internet. An IP address, short for Internet Protocol address, is a unique numerical label assigned to each device connected to a network. It serves as an identifier for both the source and destination of data packets transmitted across the network.

The structure of an IP address consists of four sets of numbers separated by periods (e.g., 192.168.0.1). Each set can range from 0 to 255, resulting in a total of approximately 4.3 billion possible unique combinations for IPv4 addresses. However, with the increasing number of devices connected to the internet, IPv6 addresses were introduced to provide a significantly larger pool of available addresses.

IPv4 addresses are still predominantly used today and are divided into different classes based on their range and purpose. Class A addresses have the first octet reserved for network identification, allowing for a large number of hosts within each network. Class B addresses reserve the first two octets for network identification and provide a balance between network size and number of hosts per network. Class C addresses allocate the first three octets for network identification and are commonly used in small networks.

With the depletion of available IPv4 addresses, IPv6 was developed to overcome this limitation by utilizing 128-bit addressing scheme, providing an enormous pool of potential IP addresses - approximately 3.4 x 10^38 unique combinations.

IPv6 addresses are represented in hexadecimal format separated by colons (e.g., 2001:0db8:85a3:0000:0000:8a2e:0370:7334). The longer length allows for more efficient routing and eliminates the need for Network Address Translation (NAT) due to its vast address space.

Understanding these basics is essential when it comes to assigning IP addresses in a network. Network administrators must consider various factors such as the number of devices, network topology, and security requirements when deciding on the IP address allocation method.

In the next section, we will explore different methods of IP address assignment, including Dynamic Host Configuration Protocol (DHCP) and static IP address assignment. These methods play a crucial role in efficiently managing IP addresses within a network and ensuring seamless communication between devices.

Methods of IP Address Assignment

IP address assignment is a crucial aspect of network management and plays a vital role in ensuring seamless connectivity and efficient data transfer. There are primarily two methods of assigning IP addresses in a network: dynamic IP address assignment using the Dynamic Host Configuration Protocol (DHCP) and static IP address assignment.

Dynamic IP Address Assignment using DHCP

Dynamic IP address assignment is the most commonly used method in modern networks. It involves the use of DHCP servers, which dynamically allocate IP addresses to devices on the network. When a device connects to the network, it sends a DHCP request to the DHCP server, which responds by assigning an available IP address from its pool.

One of the key benefits of dynamic IP address assignment is its simplicity and scalability. With dynamic allocation, network administrators don't have to manually configure each device's IP address. Instead, they can rely on the DHCP server to handle this task automatically. This significantly reduces administrative overhead and makes it easier to manage large networks with numerous devices.

Another advantage of dynamic allocation is that it allows for efficient utilization of available IP addresses. Since addresses are assigned on-demand, there is no wastage of unused addresses. This is particularly beneficial in scenarios where devices frequently connect and disconnect from the network, such as in public Wi-Fi hotspots or corporate environments with a high turnover rate.

However, dynamic allocation does have some drawbacks as well. One potential issue is that devices may receive different IP addresses each time they connect to the network. While this might not be an issue for most users, it can cause problems for certain applications or services that rely on consistent addressing.

Additionally, dynamic allocation introduces a dependency on the DHCP server. If the server goes down or becomes unreachable, devices will not be able to obtain an IP address and will be unable to connect to the network. To mitigate this risk, redundant DHCP servers can be deployed for high availability.

Static IP Address Assignment

Static IP address assignment involves manually configuring each device's IP address within the network. Unlike dynamic allocation, where addresses are assigned on-demand, static assignment requires administrators to assign a specific IP address to each device.

One of the main advantages of static IP address assignment is stability. Since devices have fixed addresses, there is no risk of them receiving different addresses each time they connect to the network. This can be beneficial for applications or services that require consistent addressing, such as servers hosting websites or databases.

Static assignment also provides greater control over network resources. Administrators can allocate specific IP addresses to devices based on their requirements or security considerations. For example, critical servers or network infrastructure devices can be assigned static addresses to ensure their availability and ease of management.

However, static IP address assignment has its limitations as well. It can be time-consuming and error-prone, especially in large networks with numerous devices. Any changes to the network topology or addition/removal of devices may require manual reconfiguration of IP addresses, which can be a tedious task.

Furthermore, static allocation can lead to inefficient utilization of available IP addresses. Each device is assigned a fixed address regardless of whether it is actively using the network or not. This can result in wastage of unused addresses and may pose challenges in scenarios where addressing space is limited.

In order to efficiently allocate IP addresses within a network, there are several important considerations that need to be taken into account. By carefully planning and managing the allocation process, network administrators can optimize their IP address usage and ensure smooth operation of their network.

One of the key factors to consider when assigning IP addresses is the size of the network. The number of devices that will be connected to the network determines the range of IP addresses that will be required. It is essential to accurately estimate the number of devices that will need an IP address in order to avoid running out of available addresses or wasting them unnecessarily.

Another consideration is the type of devices that will be connected to the network. Different devices have different requirements in terms of IP address assignment. For example, servers and other critical infrastructure typically require static IP addresses for stability and ease of access. On the other hand, client devices such as laptops and smartphones can often use dynamic IP addresses assigned by a DHCP server.

The physical layout of the network is also an important factor to consider. In larger networks with multiple subnets or VLANs, it may be necessary to segment IP address ranges accordingly. This allows for better organization and management of IP addresses, making it easier to troubleshoot issues and implement security measures.

Security is another crucial consideration when allocating IP addresses. Network administrators should implement measures such as firewalls and intrusion detection systems to protect against unauthorized access or malicious activities. Additionally, assigning unique IP addresses to each device enables better tracking and monitoring, facilitating quick identification and response in case of any security incidents.

Efficient utilization of IP address ranges can also be achieved through proper documentation and record-keeping. Maintaining an up-to-date inventory of all assigned IP addresses helps prevent conflicts or duplicate assignments. It also aids in identifying unused or underutilized portions of the address space, allowing for more efficient allocation in the future.

Furthermore, considering future growth and scalability is essential when allocating IP addresses. Network administrators should plan for potential expansion and allocate IP address ranges accordingly. This foresight ensures that there will be sufficient addresses available to accommodate new devices or additional network segments without disrupting the existing infrastructure.

In any network, the assignment of IP addresses is a crucial aspect that allows devices to communicate with each other effectively. When it comes to IP address assignment in the same network, there are specific considerations and methods to ensure efficient allocation. In this section, we will delve into how two routers in the same network obtain IP addresses and discuss subnetting and IP address range distribution.

To understand how two routers in the same network obtain IP addresses, it's essential to grasp the concept of subnetting. Subnetting involves dividing a larger network into smaller subnetworks or subnets. Each subnet has its own unique range of IP addresses that can be assigned to devices within that particular subnet. This division helps manage and organize large networks efficiently.

When it comes to assigning IP addresses within a subnet, there are various methods available. One common method is manual or static IP address assignment. In this approach, network administrators manually assign a specific IP address to each device within the network. Static IP addresses are typically used for devices that require consistent connectivity and need to be easily identifiable on the network.

Another widely used method for IP address assignment is Dynamic Host Configuration Protocol (DHCP). DHCP is a networking protocol that enables automatic allocation of IP addresses within a network. With DHCP, a server is responsible for assigning IP addresses dynamically as devices connect to the network. This dynamic allocation ensures efficient utilization of available IP addresses by temporarily assigning them to connected devices when needed.

When considering efficient allocation of IP addresses in the same network, several factors come into play. One important consideration is proper planning and design of subnets based on anticipated device count and future growth projections. By carefully analyzing these factors, administrators can allocate appropriate ranges of IP addresses for each subnet, minimizing wastage and ensuring scalability.

Additionally, implementing proper security measures is crucial when assigning IP addresses in the same network. Network administrators should consider implementing firewalls, access control lists (ACLs), and other security mechanisms to protect against unauthorized access and potential IP address conflicts.

Furthermore, monitoring and managing IP address usage is essential for efficient allocation. Regular audits can help identify any unused or underutilized IP addresses that can be reclaimed and allocated to devices as needed. This proactive approach ensures that IP addresses are utilized optimally within the network.

The proper assignment of IP addresses is crucial for maintaining network security and efficiency. Throughout this guide, we have covered the basics of IP addresses, explored different methods of IP address assignment, and discussed considerations for efficient allocation.

In conclusion, understanding IP address assignment in the same network is essential for network administrators and technical professionals. By following proper allocation methods such as DHCP or static IP assignment, organizations can ensure that each device on their network has a unique identifier. This not only enables effective communication and data transfer but also enhances network security by preventing unauthorized access.

Moreover, considering factors like subnetting, scalability, and future growth can help optimize IP address allocation within a network. Network administrators should carefully plan and allocate IP addresses to avoid conflicts or wastage of resources.

Overall, a well-managed IP address assignment process is vital for the smooth functioning of any network. It allows devices to connect seamlessly while ensuring security measures are in place. By adhering to best practices and staying updated with advancements in networking technology, organizations can effectively manage their IP address assignments.

In conclusion, this guide has provided a comprehensive overview of IP address assignment in the same network. We hope it has equipped you with the knowledge needed to make informed decisions regarding your network's IP address allocation. Remember that proper IP address assignment is not only important for connectivity but also plays a significant role in maintaining online security and optimizing network performance.

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How to Set Up a Static IP Address

DHCP is fine, unless you're looking to perform advanced networking tasks. Here's how to set a Static IP address (or DHCP reservation) for any device on your network.

An IP address is a unique identifier for a specific device on your network. Your router assigns them to these devices using  Dynamic Host Configuration Protocol (DHCP). As you connect new devices to the network, they will be assigned the next IP address in the pool, and if a device hasn't connected in a few days, its IP address will "expire" so it can be assigned to something else.

For everyday use, this is perfectly fine, and you will never even notice it happening in the background. But if you regularly  SSH into your Raspberry Pi , turn your computer on from across the house with Wake-on-LAN , or perform other advanced networking tasks, DHCP can become an annoyance. It's hard to remember which IP address is assigned to which device, and if they ever expire, you have to look it up all over again.

This is where a static IP address can come in handy. Here's how to set it up.

What Is a Static IP Address?

Instead of letting your router assign whatever IP address is free at any given time, you can assign specific IP addresses to the devices you access frequently. For example, I have my home server set to 192.168.1.10, my main desktop to 192.168.1.11, and so on—easy to remember, sequential, and unchanging. You can assign these static IP addresses on the device itself—using, say, Windows' network settings on each computer—or you can do it at the router level.

If you do it through the router, it will likely be called a DHCP reservation, though many people (and even some  routers ) still refer to it as a "static IP address." DHCP reservations allow you to easily set everything up in one place with all your computers left at their default settings. Your computer will ask for an IP address via DHCP, and your router will assign it the one you reserved, with your computer being none the wiser.

How to Set Up a Static IP Address on an Single Device

If you wish to change the IP address of a single device, this can be done through its settings menu. You can set it on on your computers and mobile devices, though the process will differ depending on the operating system in use. Follow our directions to set up a static IP address:

Change Your IP Address in Windows

Step 1: Open the Command Prompt

Your first step should be to track down your computer's current IP address, subnet mask, and default gateway. Do this by opening the Start menu and searching for "Command Prompt." Choose Run as administrator

Step 2: Take Note of Your Subnet Mask and Gateway

Run the ipconfig / all command to view your network configuration settings. Look to the Wireless LAN adapter heading to view your current IP address, subnet mask, default gateway, and DNS server . Write these down for later use.

Step 3: View Network Connections

Now use the Windows Start menu to search "network connections" and choose View network connections .

Step 4: Open Network Properties

Right-click on the Wi-Fi or Ethernet entry (depending on what kind of connection you're using) and choose Properties .

Step 5: Find IPv4 Settings

Find the Internet Protocol Version 4 entry in the pop-up window that appears and double-click on it.

Step 6: Change IP Address

In the new menu that appears, click Use the following IP address . You can then add your preferred address, as well as the subnet mask, default gateway, and DNS server you found earlier. Click OK to finalize.

Change Your IP Address in macOS

Open System Settings ( System Preferences in macOS Monterey and older).

Choose Network .

Pick the network connection you wish to use.

Click the Details button next to the network (or the Advanced button at the bottom).

Select the TCP/IP tab in the window that appears.

Change Configure IPv4 drop-down to Manually .

Enter your new IP address and click OK .

Change Your IP Address on an iPhone

Go to Settings .

Select Wi-Fi .

Select the network.

Tap Configure IP .

Choose Manual

Enter your new IP address.

Change Your IP Address on an Android Device

Select Connections .

Tap the settings icon next to your current network.

Tap View more .

Choose IP settings .

Pick Static .

Type in your new IP address and tap Save .

How to Set Up a DHCP Reservation on Your Router

To set up a DHCP reservation, you need to know your IP address , which is easy enough to find out. Then head to your router's configuration page —usually by typing its IP address in your browser's navigation bar—and log in. (For  mesh Wi-Fi systems , you'd use an app instead of a config page.)

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The location is different for every config page, but you're looking for something called "DHCP reservations," "static IP addresses," or similar. On my Asus router, for instance, it's in the LAN settings category.

To assign a reservation, you need the  MAC address  of the device in question. This is a unique string of characters that identifies a particular network adapter, and you can usually find it in your router's list of connected devices . Make sure you're getting the MAC address for the correct network adapter—if you have both Ethernet and Wi-Fi on your computer, you have one MAC address for each.

On your router's config page, enter an easy-to-remember label for the device (like "Whitson's Desktop PC"), the MAC address, and your desired IP address. Save your changes, and repeat the process for any other IP addresses you want to reserve. From then on, those devices should have your reserved IP addresses assigned to them, and you will never have to look them up again.

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About Whitson Gordon

Contributing writer.

Whitson Gordon is a writer, gamer, and tech nerd who has been building PCs for 10 years. He eats potato chips with chopsticks so he doesn't get grease on his mechanical keyboard.

Read Whitson's full bio

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Table of Contents

Further reading.

How to Assign Static IP Address to Your Devices

By default, your router assigns dynamic IP Address to every device that connects to it. This is called DHCP (short for Dynamic Host Control Protocol). But sometimes, we need our devices to have the same IP address (i.e. Static IP) every time it connects to the network. Reason being,

• Access your computer from the Internet.
• Share data between two devices on the same network.
• Quickly access your Network Printer or NAS.
• Use your computer as a media server.
• Or your work WiFi requires you to use Static IP address.

What IP address should you choose?

If two devices on the network have the same IP address, then there will be conflicts. The Internet won’t work on one of them or both, depending on your router. So, it’s important to assign a unique IP address to your computer. There are a couple of ways to pick an unused IP address.

For instance– first  find your device’s IP address , say it’s  192.168.1.7 ; then keep the first three values (i.e. 192.168.1) as it’s and replace the last digit with some far number like  192.168.1.222 . Though make sure the last digit should be between a  0-255  range.

Assigning Static IP address to most devices is easy, just go to its network settings, look for DHCP option and turn it OFF. Once you do that, you’ll see a text area to enter Static IP address. Enter the new IP address there, save changes and that’s it.

So let’s see how to Assign Static IP address to various Operating Systems

1. Assign IP Address on Windows 10/8/7

You can do this quickly through the command line. You will need to first find your subnet mask, default gateway, and network adapter name. In my case, I’m on a Wi-Fi network, so the adapter name is Wi-Fi. To find yours just type the following command.

Once you get the output, find for the Network Adapter which has IP listed under it. The adapter name is a one-word name suffixed to the end of the Network Title. You will also need the Subnet mask and the Default Gateway Address.

Once you have the adapter name, Subnet Mask and Default Gateway, run the following command.

Wherein, Wi-Fi should be replaced by your adapter name and the IP, subnet mask and gateway address according to your configuration.

This will change your IP address from DHCP to manual with the static IP address you have specified.

In case you find it too confusing, you are not alone. You can do the same via GUI which is much more intuitive. You’ll need the  Subnet Mask and Default Gateway Address . You can refer to the above step on how to find these details. Once you have noted down the address, click on  Start  Menu and type in  Network and Sharing Center.  Click once you see the Network and Sharing Center Icon.

Alternatively, if you are in Windows 10 then you can right-click on the Start menu and click on “ Network Connections “.

A new window will open, click on  Change Adapter Options.

Right Click on your Current Network Adapter ( like WiFi)  and choose  Properties.

When the new window pops up, select  Internet Protocol Version 4(TCP/IPv4)   and click on  Properties.

Once you get the pop-up window, select “ Enter the IP address you want ” and fil the IP Address, For Subnet Mask , and Default Gateway Address enter the values that you have noted down previously. Next, click on OK to save changes.

To switch to dynamic IP, click on Obtain the IP address automatically. Once this is enabled, your system will start picking an IP address dynamically from the router.

2. How to setup static IP on Ubuntu

On Ubuntu, you can set a static IP Address via the terminal or GUI. Firstly, let’s start with the command line. Right-click anywhere on the desktop to open the terminal.

Once the terminal window opens, we need to run a command. We need the subnet mask and network adapter name in order to set a static IP and to get that, run the following command on the terminal.

Once you have the subnet mask noted down, in my case, it’s 255.255.255.0, we can proceed further.

It is pretty simple and straight forward. We need to open the Network Adapter settings. To do that, click on the Network Icon at the top right corner of the desktop.

Now, navigate on the active network and click on the expand button for more options. Click on Wired Settings to open the Network menu.

Once you get the Wired Settings dialogue, make sure you are on the Network page. Click on the Settings icon beside the active network to open the adapter properties.

When you get the pop-up, navigate to the IPv4 tab to change the IP settings.

On the IPv4 tab, select the radio button which says “ Manual “. Some text fields will appear, you need to enter the IP address, Netmask and Gateway accordingly. Once it is validated, you can click on the Apply button to register the changes.

Again you need to restart the network for the changes to take effect. You can do it manually via command line or just switch off and switch on the Network adapter. Once done, run ifconfig on the terminal to check the IP address. It should be the same IP address which you have specified earlier.

3. How to setup static IP on Mac

If you are on macOS, setting static IP is quite similar to that of Ubuntu. But, here you don’t need the subnet mask or Default Gateway Address. Right click on the apple icon at the top left corner of the desktop. Click on  System Preferences  from the dropdown list.

Once the System Preferences dialogue box displays, navigate to Network and click on it to open the Network Settings

Alternatively, you can also hit Cmd+Space to trigger the Spotlight search. Type “ Network ” in the search bar and click on the icon once it appears. This will directly navigate you to the Network Settings.

From the pop-up window, select an active network interface. For example, I am connected to a WiFi network so my active network is  Wi-Fi. Make sure you are on the active network tab and then click on  Advanced .

A new window will open the configuration settings for that adapter. Move over to the IP settings by clicking on the TCP/IP tab .

From the Configure IPv4 menu, choose Using DHCP with manual address.  Enter a static IP address in the IPv4 Address and leave the Subnet Mask and Router field as default. Click Ok to save the changes.

Now when you do an ifconfig, the system should be using the static IP you have defined in the previous times. If the IP’s have not changed, try restarting the Wi-Fi and it should fix it.

To switch back to dynamic IP, move back to “ Using DHCP ” from the Configure IPv4 menu.

4. How to setup static IP on Android

The network which you are connected to should be on top of the list. Tap on the settings icon beside the Wi-Fi network name.

Once the pop-up opens, you will see IP settings at the bottom of the menu. The default option is “DHCP”. Tap on it to change the IP configuration.

Select “ Static ” from the presented drop-down menu. Enter the desired IP address and leave the other options as default. Make sure that other devices are not using the same IP. You can see the IP address of the other devices in your network by using a small utility called Fing . For a detailed process, check our article on how to find the IP Address of any Device on your network . Once you have entered the IP, click on Save to register the change. Now, your Android phone should start using the desired IP Address.

In almost all the Android version, you get the option to set static IP Address. For some rare older Android versions, you can use a third-party app like  WiFi Static . It’s free and it doesn’t require ROOT.

To switch back to dynamic IP, repeat the same procedure and select “DHCP” from the IP settings instead.

5. How to setup static IP on iPhone and iPad

If you are using an iPhone or iPad, then you can set static IP Address natively. You would need the Subnet Mask of your network. This can be obtained from the Wi-Fi settings and we would see to it in the further steps. To get started, click on the Settings icon in the dock to get to the Settings menu.

Now on the Settings menu page, tap on Wi-Fi to get to the Wi-Fi settings.

On the Wi-Fi page, you should see your connected Wi-Fi network at the top. Click on the “i” button beside it. This will open the Wi-Fi configuration window.

Once the Wi-Fi settings page appears, you will see an option called “ Configure IP “. By Default, this would be set to automatic. Just below this option, you will see “ Subnet Mask “, note it down as we will need it in the further steps. In order to set static IP, we need to change Configure IP it to Manual. Tap on it and it will open the IPv4 settings page.

There should be 3 options available on the “Configure IPv4” page. Select “ Manual ” from it. As soon as Manual IP is enabled, you will get extra text fields at the bottom to enter the IP Address, Subnet Mask, Router. We need to fill in the IP Address of our choice and Subnet Mask which we noted down in the previous step. Now, after you fill both the fields, the save button at the top right corner will be enabled. Click on it to save the static IP configuration.

Now, when you return to the Wi-Fi settings page, you will see your device is using the Static IP address. This should be the same IP address we have set in the IP configuration menu.

This static IP address will be applicable only to that particular Wi-Fi network. In case, you connect to some other Wi-Fi network the IP will change accordingly.

6. How to setup static IP to any Device from Router

Other network devices like your  Wireless Printer, PS4, NAS, IP Camera, Raspberry Pi , etc. do not have an Interface. Hence, in order to configure the network, either you have to connect remotely or use the router. If you have access to the router, setting Static IP for network devices is the easiest and convenient way. I would recommend this method over any other.

So, to assign a Static IP Address to any network device, you need to login to the web portal of the router. The web portal address, username, and password are mostly printed behind the router. In case you don’t have physical access to the router, the web portal URL is mostly the PC’s gateway address. To find that, open command prompt and type the following command.

Once you have the web portal loaded, log in with the credentials. Now every router has a different web UI, but the overall structure is the same. Basically,  you will have to link the IP Address to the Mac Address and Hostname of the device. So, we need to find the MAC address & Hostname of the network device. To do that, look for DHCP client list which should look something like the following screenshot.

You can get your MAC Address & Hostname under DHCP Client list. Once, you have the MAC address & Hostname noted down, we can proceed further. On most of the routers, you will have the option to set a Static IP under the section  IP Mac binding or DHCP Static IP  option. In case you are on a custom ROM like dd-wrt, head over to Services tab and you will have DHCP Server . Under DHCP Server, add an entry for Static Leases by clicking on the Add button.

Clicking on the Add button will create a new row. You have to enter the MAC Address, Hostname, desired Static IP and Lease time . Lease time is a unit in minutes after which your IP will be renewed. Since we are adding only 1 entry for the particular host the IP will be the same even after the renewal. Once, done click on Save changes .

Once you have configured successfully on the router, just restart the Wi-Fi on the device. When it connects it should start using the static IP. In case of issues, make sure that you have the correct MAC Address and Hostname. To check, just run the command ipconfig or look back again in the router’s DHCP client list.

These changes are written to the ROM so restarting the router won’t make changes to the static IP configuration. In order to get back to Dynamic IP, just remove the entry from the IP leases.

What’s next

Once you have started configuring the IPs on Router and network devices, you are good to go configure telnet and SSH. Have a look at our brief article on  How to Enable Telnet Server in Windows 10 ,  Best SSH clients for iOS To Manages Remote Servers and  6 Best FTP Clients For Android . A word of caution would be to note down the static IPs assigned to devices as assigning the same IP to two network devices would render them useless.

Also Read:  How To Change DNS on Windows|Mac|Android|iOS

Mrinal Saha

Mrinal is a tech geek who spends half of his day reading and writing about tech. While the nights are spent on shooting or editing YouTube videos. Feel free to geek out with him on-

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How to configure a static IP on Windows 10 or 11

Do you need to switch from a dynamic to a static IP address configuration on Windows 11 or 10? Here's how.

• Windows 11 static IP
• Windows 10 static IP

On Windows, the router's Dynamic Host Configuration Protocol (DHCP) server is (usually) responsible for assigning a dynamic Transmission Control Protocol/Internet Protocol (TCP/IP) configuration to every device in the network, including to your computer running Windows 11 or Windows 10.

Although a dynamic IP address is the recommended configuration for most situations, you may need to change to a static IP address if you're thinking about setting up a printer or file sharing, or you have to configure port forwarding on the router to your computer.

The reason is that a dynamic network configuration can change at any time after the lease from the DHCP expires and if the address changes, network resources you may have configured will stop working. Setting a static IP address will always stay the same on the computer, allowing a more reliable experience sharing resources in the network or forwarding ports.

Whatever the reason, on Windows 10 and 11, you have many ways to configure a static TCP/IP address, including using the Settings app and Command Prompt.

This guide will walk you through the different ways to configure a static network configuration on Windows 11 and 10.

How to set a static TCP/IP network configuration on Windows 11

On Windows 11, you can change your computer's dynamic IP configuration to static in at least two ways through the Settings app or commands.

Configure IP from Settings app

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To assign a permanent TCP/IP configuration on Windows 11, use these steps:

• Open  Settings .
• Click on  Network & internet .
• (Optional) Click on Advanced network settings .
• Under the "More settings" section, click on Hardware and connection properties.
• Note the current IPv4 ,  Subnet mask ,  Default Gateway , and  DNS server addresses to determine the new configuration, as it has to be in the same network scope.
• Click the  Ethernet  or  Wi-Fi  page on the right side from the "Network & internet." page.

• Quick note:  If you select the Wi-Fi page, you need to click on the connection properties to access the network settings.
• Click on the  Edit  button for the "IP assignment" setting.

• Select the  Manual  option from the drop-down menu.
• Turn on the  IPv4  toggle switch.
• Confirm the IP address for the computer – for example, 10.1.4.90.
• Confirm the subnet mask for the configuration – for example, 255.255.255.0.
• Confirm the default gateway address (usually your router's IP) – for example, 10.1.4.1.
• Confirm the preferred DNS address – for example, 10.1.4.1.

•   Quick note:  In a home network, you may also be able to use the router's IP address for the DNS configuration. You can also use third-party DNS services like Google Public DNS, Cloudflare, Cisco's OpenDNS, and others. 
• (Optional) Select the  "On (automatic template)"  option for the "DNS over HTTPS" setting and leave the  "Fallback to plaintext"  option disabled unless you want to encrypted as well as unencrypted traffic or you're troubleshooting connectivity.
• Quick note:  DNS over HTTPS (DoH) is a feature that encrypts the DNS queries over the HTTPS protocol to improve security and privacy on the internet. You only want to enable this feature if the DNS server supports this feature.
• Confirm the alternate DNS address (if applicable).
• (Optional) Select the  "On (automatic template)"  option for the "DNS over HTTPS" setting and leave the  "Fallback to plaintext"  option disabled.
• Click the  Save  button.

Once you complete the steps, the computer will start using the static network configuration. If everything has been configured correctly, you should be able to open the web browser to access the internet.

If you entered an address (such as the DNS address) and then changed it, you probably won't be able to save the settings. If this is the case, cancel the configuration, start over, enter the correct configuration, and then try to save the settings.

Configure IP from Command Prompt

To set a static TCP/IP configuration on Windows 11, use these steps:

• Open  Start .
• Search for  Command Prompt , right-click the top result, and select the  Run as administrator  option.
• Type the following command to see your current networking configuration and press  Enter : ipconfig /all
• Confirm the name of the adapter and the networking configuration, including the IPv4 , Subnet mask , Default Gateway , and DNS Servers .

• Type the following command to configure a static TCP/IP address and press  Enter :  netsh interface ip set address name= "ADAPTER-NAME" static IP-ADDRESS SUBNET-ADDRESS DEFAULT-GATEWAY-ADDRESS

In the above command, replace  ADAPTER-NAME  with the name of your network adapter. Change  IP-ADDRESS SUBNET-ADDRESS    DEFAULT-GATEWAY-ADDRESS  with the device IP address, subnet mask, and default gateway addresses you want. For example, this command sets the 10.1.4.90, 255.255.255.0, 10.1.4.1 configuration:  netsh interface ip set address name="Ethernet 10Gb" static 10.1.4.90 255.255.255.0 10.1.4.1

• Type the following command to set a DNS server address and press  Enter :  netsh interface ip set dns name="ADAPTER-NAME" static DNS-ADDRESS  

In the command, change  ADAPTER-NAME  with your adapter's name and  DNS-ADDRESS  with the DNS server address of the network. For example, this command sets the local router as the DNS server:  netsh interface ip set dns name="Ethernet 10Gb" static 10.1.4.1

• Type the following command to set an alternate DNS server address and press  Enter :  netsh interface ip add dns name="ADAPTER-NAME" DNS-ADDRESS index=2

In the command, change  ADAPTER-NAME  with the adapter's name and  DNS-ADDRESS  with an alternate DNS server address. For example, netsh interface ip add dns name="Ethernet 10Gb" 1.1.1.1 index=2

After you complete the steps, the commands will set a static network configuration on Windows 11.

How to set a static TCP/IP network configuration on Windows 10

On Windows 10, you can also use the Settings app and Command Prompt to set up a static IP network configuration.

To assign a permanent TCP/IP configuration on Windows 10, use these steps:

• Click on  Ethernet  or  Wi-Fi .
• Click on the active connection on the right side.

• Click the  Edit  button for the "IP assignment" setting.

• Select the  Manual  option.
• Confirm the subnet prefix length (subnet mask) for the configuration – for example, 24 to specify the 255.255.255.0 subnet mask.

• Quick tip:  It's important to use the number that represents the network instead of the subnet mask. Otherwise, the configuration won't save. If you don't know the subnet prefix length for your subnet mask, you can use any  online subnet calculator  to find out.

Once you complete the steps, Windows 10 will start using the static IP configuration. If you lose network connectivity, restart the computer to regain access to the local network and internet.

To change from dynamic to static IP address with commands on Windows 10, use these steps:

In the command, change  ADAPTER-NAME  with your adapter's name and  DNS-ADDRESS  with the DNS server address of the network. For example, this command sets the local router as the DNS server:  netsh interface ip set dns name=" Ethernet 10Gb" static 10.1.4.1

In the command, change  ADAPTER-NAME  with the adapter's name and  DNS-ADDRESS  with an alternate DNS server address. For example, netsh interface ip add dns name="Ethernet0" 1.1.1.1 index=2

After you complete the steps, the network configuration will switch from dynamic to static on Windows 10.

Mauro Huculak has been a Windows How-To Expert contributor for WindowsCentral.com for nearly a decade and has over 15 years of experience writing comprehensive guides. He also has an IT background and has achieved different professional certifications from Microsoft, Cisco, VMware, and CompTIA. He has been recognized as a Microsoft MVP for many years.

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How To Assign IP Address

• How-To Guides
• Tech Setup & Troubleshooting

Introduction

Assigning IP addresses is an essential task in computer networking that allows devices to connect and communicate within a network. An IP address serves as a unique identifier for each device connected to a network, enabling the exchange of data packets between them. Whether it’s a home network or a large corporate network, the process of assigning IP addresses plays a crucial role in ensuring smooth and efficient communication.

In this article, we will delve into the fundamentals of IP addresses, the different types of IP addresses available, and explore the methods for assigning them. Whether you’re a network administrator, a curious computer enthusiast, or simply want to understand how IP address assignment works, this article aims to provide you with the necessary knowledge.

Understanding IP addresses is the first step towards comprehending their assignment. IP addresses are numerical labels assigned to devices connected to a network. They consist of four sets of numbers separated by periods, such as 192.168.0.1. This addressing scheme provides a way for devices within a network to locate and communicate with one another.

There are two main types of IP addresses: IPv4 (Internet Protocol version 4) and IPv6 (Internet Protocol version 6). IPv4 addresses, consisting of 32 bits, have been the standard for many years. However, with the rapid growth of internet-connected devices, the need for more addresses arose, leading to the development of IPv6 addresses, which consist of 128 bits and provide a virtually limitless pool of addresses.

IP addresses can be assigned in two ways: manual (static) assignment or automatic (dynamic) assignment. Manual assignment involves manually configuring the IP address on each device, ensuring that each one has a unique address within the network. Automatic assignment, on the other hand, involves a central server dynamically allocating IP addresses to devices using protocol-level mechanisms.

In the next sections, we will explore both manual and automatic IP address assignment methods, including the use of the Dynamic Host Configuration Protocol (DHCP) for automatic assignment. We will also look at how to assign IP addresses on different operating systems such as Windows, Mac, and Linux.

Additionally, we will touch on common issues that may arise during IP address assignment and provide troubleshooting tips to help resolve them. By the end of this article, you will have a comprehensive understanding of IP address assignment and be equipped to assign IP addresses to devices within your network efficiently.

Understanding IP Addresses

IP addresses are crucial elements in computer networking, serving as unique identifiers for devices connected to a network. They enable devices to communicate and exchange data packets with one another. To understand IP addresses, let’s dive into their structure and functionality.

An IP address is a numerical label assigned to each device within a network. It consists of four sets of numbers, separated by periods, such as 192.168.0.1. Each set, known as an octet, represents a binary value ranging from 0 to 255. This addressing scheme provides a standardized way for devices to locate and communicate with each other on a network.

The most widely used IP version is IPv4 (Internet Protocol version 4), which utilizes 32-bit addresses. This means there are approximately 4.3 billion unique IPv4 addresses available. However, with the exponential growth of internet-connected devices, the pool of available IPv4 addresses is depleting. To overcome this limitation, IPv6 (Internet Protocol version 6) was introduced, which uses 128-bit addresses. This allows for an astronomically large number of unique addresses, ensuring the continued expansion of the Internet of Things (IoT) and other networked devices.

IP addresses are hierarchical, with different classes and ranges reserved for specific purposes. The most common classification is based on the range of IP addresses allocated to private networks and public networks.

Private IP addresses are used within local networks to facilitate internal communication among devices. They are reserved and cannot be routed over the internet. The most commonly used private IP address ranges are:

• Class A: 10.0.0.0 to 10.255.255.255
• Class B: 172.16.0.0 to 172.31.255.255
• Class C: 192.168.0.0 to 192.168.255.255

Public IP addresses, on the other hand, are globally unique and can be accessed over the internet. Internet service providers (ISPs) allocate public IP addresses to devices connected to their networks. These addresses allow devices to communicate with other devices and servers across the internet.

In summary, IP addresses serve as unique identifiers that enable devices to communicate within networks. Whether it’s a small home network or a large corporate network, understanding IP addresses and their structure is vital when it comes to assigning and managing them effectively.

Types of IP Addresses

IP addresses can be classified into different types based on their purpose and usage. Understanding these types is essential to effectively manage and assign IP addresses in a network. Let’s explore the various types of IP addresses:

1. Public IP Addresses

A public IP address is a globally unique address assigned to a device connected to the internet. This address allows the device to communicate with other devices and servers across the internet. Public IP addresses are obtained from internet service providers (ISPs) and are routable over the internet. Each public IP address can only be assigned to one device at a time, ensuring uniqueness and facilitating direct communication over the internet.

2. Private IP Addresses

Private IP addresses are used within local networks and are not routable over the internet. They provide a means for devices within a network to communicate with each other. Private IP addresses are typically assigned to devices on a home network, office network, or any other private network. These addresses are reserved and do not conflict with public IP addresses. The most commonly used private IP address ranges are Class A (10.0.0.0 to 10.255.255.255), Class B (172.16.0.0 to 172.31.255.255), and Class C (192.168.0.0 to 192.168.255.255).

3. Static IP Addresses

A static IP address is a fixed IP address manually assigned to a device. It remains constant and does not change over time. Static IP addresses are typically used for servers, network devices, and devices requiring consistent network identification. It can be beneficial for certain applications that require a permanent IP address to ensure uninterrupted access and connectivity.

4. Dynamic IP Addresses

Dynamic IP addresses are automatically assigned to devices within a network. These addresses are temporary and subject to change. Dynamic IP address assignment is commonly used by internet service providers (ISPs) to manage their pool of IP addresses efficiently. Dynamic IP addresses are allocated using protocols like the Dynamic Host Configuration Protocol (DHCP), which ensures that devices within a network receive a unique IP address dynamically when connected to the network.

5. Loopback IP Address

The loopback IP address (127.0.0.1) is a special IP address reserved for testing and communication within the local device itself. It allows applications running on a device to communicate with each other using the network protocol stack without the need for an external network connection. The loopback address is commonly used for troubleshooting network-related issues on a local device.

Understanding the different types of IP addresses is crucial for managing and assigning IP addresses effectively in a network. Whether it’s public, private, static, dynamic, or loopback addresses, each type serves a specific purpose in facilitating communication and connectivity within networks.

How IP Addresses are Assigned

IP addresses play a crucial role in facilitating communication between devices within a network. Understanding how IP addresses are assigned is essential to ensure efficient and organized connectivity. In this section, we will explore the two main methods of IP address assignment: manual and automatic.

Manual IP Address Assignment

In manual IP address assignment, each device within a network is individually configured with a specific IP address. This method requires manual intervention to assign a unique IP address to each device. Manual IP address assignment is commonly used in situations where a specific device requires a static IP address, such as servers or network devices that need to maintain a consistent network identity.

To manually assign an IP address, an administrator typically accesses the device’s network settings or control panel and provides an IP address, subnet mask, default gateway, and DNS server information. These parameters ensure that the device has the necessary network configuration to communicate within the network.

Automatic IP Address Assignment

Automatic IP address assignment eliminates the need for manual intervention by dynamically allocating IP addresses to devices within a network. This method is efficient, as it streamlines the process of network configuration and avoids potential conflicts that may arise from manual assignment.

The most commonly used protocol for automatic IP address assignment is the Dynamic Host Configuration Protocol (DHCP). DHCP allows a central server, known as a DHCP server, to dynamically assign IP addresses, subnet masks, default gateways, and DNS server information to devices within the network.

When a device connects to a network configured with DHCP, it sends a DHCP discovery message, requesting an IP address from the DHCP server. The DHCP server responds with an offer, providing an available IP address. The device then sends a request to confirm its intention to use the offered IP address, and once acknowledged by the DHCP server, the device is assigned the IP address for the duration of its connection to the network.

This dynamic allocation of IP addresses ensures that devices within the network receive unique addresses and minimizes the chance of conflicting IP assignments. It also allows for efficient management and reusing of IP addresses as devices connect and disconnect from the network.

Whether it’s manual or automatic IP address assignment, the method chosen depends on the specific requirements and network configuration. In scenarios where static IP addresses are necessary or desired, manual assignment provides full control over IP address allocation. However, for most networks, automatic assignment through DHCP offers a streamlined and efficient approach to IP address management.

Manual IP address assignment is a method of configuring individual devices within a network with specific IP addresses. This approach is used when devices require static IP addresses, meaning the assigned IP address remains constant and does not change over time. Manual IP address assignment provides network administrators with full control over IP allocation and allows for precise management of network resources.

Assigning IP addresses manually involves configuring the network settings on each device. Here is a step-by-step guide on how to manually assign an IP address:

Step 1: Determine the IP Address Range

Before assigning IP addresses, it is important to determine the IP address range that will be used in the network. This range should be consistent with the network’s addressing scheme and should not conflict with any existing IP addresses.

Step 2: Access Network Settings

On each device, access the network settings or control panel. This can usually be done through the device’s operating system settings.

Step 3: Select Manual IP Assignment

Within the network settings, look for the option to manually configure the IP address. This option may be labeled as “Static IP,” “Manual IP,” or similar. Select this option to proceed with manual IP address assignment.

Step 4: Enter the IP Address

Enter the desired IP address in the designated field. Make sure the IP address falls within the determined IP address range. Avoid duplicate IP addresses to prevent conflicts within the network.

Step 5: Set the Subnet Mask

Alongside the IP address, set the subnet mask for the device. The subnet mask determines the network portion of the IP address and helps identify other devices within the same network.

Step 6: Define the Default Gateway

Specify the default gateway IP address. The default gateway serves as the access point for devices to connect to other networks or the internet. It is typically the IP address of the router or gateway device within the network.

Step 7: Configure DNS Server Information

Enter the IP addresses of the DNS servers in the respective fields. DNS servers resolve domain names into their corresponding IP addresses, enabling devices to access websites and services on the internet.

Step 8: Apply the Changes

After entering all the necessary information, apply the changes to finalize the manual IP address assignment. The device will now use the specified IP address for its network connectivity.

Manual IP address assignment provides greater control and stability, especially for devices that require persistent configurations. However, it also requires careful administration to ensure IP address conflicts are avoided and the network remains organized.

Now that you have a clear understanding of manual IP address assignment, you can confidently configure devices with specific IP addresses that suit your network’s needs.

Automatic IP address assignment is a method of dynamically allocating IP addresses to devices within a network. It eliminates the need for manual configuration and provides a streamlined approach to IP address management. Automatic assignment is commonly used in networks where devices do not require specific static IP addresses and can adapt to changing network conditions.

The primary mechanism for automatic IP address assignment is the Dynamic Host Configuration Protocol (DHCP). DHCP allows a central server, known as a DHCP server, to allocate IP addresses, subnet masks, default gateways, and other network configuration parameters to devices that connect to the network.

Here is an overview of how automatic IP address assignment through DHCP works:

Step 1: DHCP Discovery

When a device connects to a network with DHCP enabled, it broadcasts a DHCP discovery message. This message is sent to discover available DHCP servers within the network.

Step 2: DHCP Offer

Upon receiving the DHCP discovery message, one or more DHCP servers respond with a DHCP offer. The offer includes an available IP address, subnet mask, default gateway, DNS server information, and other network configuration parameters.

Step 3: DHCP Request

The device selects one DHCP offer and sends a DHCP request message to the chosen DHCP server. The request confirms the intention to use the offered IP address and requests that the DHCP server reserve it for the device.

Step 4: DHCP Acknowledgment

Upon receiving the DHCP request, the DHCP server acknowledges the request with a DHCP acknowledgment message. This message confirms the reservation of the IP address for the device, along with any additional network configuration parameters.

Step 5: IP Address Lease

The DHCP server assigns an IP address lease duration to the device. This lease determines the duration for which the device can use the assigned IP address. The lease period can be configured on the DHCP server and typically ranges from hours to several days.

Step 6: IP Address Renewal

As the lease period approaches expiration, the device sends a DHCP renewal request to the DHCP server. The server can either renew the lease for the same IP address or assign a new IP address, depending on the availability and configuration.

By using DHCP for automatic IP address assignment, network administrators benefit from simplified network management and resource optimization. DHCP eliminates the manual effort of configuring IP addresses on individual devices and ensures that IP addresses are assigned dynamically, avoiding conflicts and efficiently utilizing available addresses.

Automatic IP address assignment through DHCP is widely supported in various operating systems and network devices. It provides flexibility and scalability, making it an essential component of modern networks.

Now that you have a clear understanding of automatic IP address assignment through DHCP, you can implement this method to efficiently manage IP addresses within your network.

Dynamic Host Configuration Protocol (DHCP)

The Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables automatic and centralized IP address assignment within a network. With DHCP, devices can dynamically obtain IP addresses, as well as other network configuration information, such as subnet masks, default gateways, and DNS server addresses. This protocol simplifies network administration by reducing the amount of manual configuration required and ensuring efficient utilization of IP addresses.

Here are the key components and functionalities of DHCP:

DHCP Server

The DHCP server is a central component in the network responsible for managing IP address assignment. It holds a pool of available IP addresses and leases them to devices on the network. The DHCP server also maintains information about lease durations, configuration parameters, and other network-specific settings.

DHCP Client

A DHCP client is a device that requests IP address assignment from a DHCP server. Clients typically send DHCP discovery messages on the network to locate available DHCP servers and initiate the IP address assignment process. Once a DHCP offer is received, the client sends a DHCP request to confirm and secure the offered IP address.

A DHCP lease refers to the duration for which a DHCP client is allowed to use an assigned IP address. Lease durations are determined by the DHCP server and can be configured to different time intervals, typically ranging from a few hours to several days. Before the lease expires, the client can attempt to renew the lease to maintain its IP address assignment.

IP Address Pool

The IP address pool is a range of available IP addresses that a DHCP server can assign to clients. The pool is configured on the DHCP server and defines the range from which IP addresses are dynamically allocated. The server ensures that each IP address is allocated only once to avoid conflicts within the network.

Address Reservation

In addition to dynamic IP address assignment, DHCP also allows for address reservation. Address reservation associates a specific IP address with a particular device’s unique identifier, such as its Media Access Control (MAC) address. With address reservation, a device is always assigned the same IP address whenever it connects to the network, ensuring consistent configuration and accessibility.

DHCP significantly simplifies network administration by automating IP address assignment and related configuration tasks. It provides scalability, flexibility, and efficient management of IP address resources within a network. DHCP is widely supported by operating systems and network devices, making it an integral part of modern networks.

By leveraging DHCP, network administrators can streamline the process of IP address assignment, reduce manual errors, and adapt to changing network conditions more efficiently. DHCP plays an essential role in maintaining the connectivity and overall performance of networks of all sizes.

Assigning IP Addresses on Windows

Assigning IP addresses on Windows is a straightforward process that can be done through the network settings in the operating system. Windows provides several methods for IP address assignment, including manual (static) assignment and dynamic assignment through the Dynamic Host Configuration Protocol (DHCP).

Here is how you can manually assign an IP address on Windows:

• Open the Start menu and go to Settings. Select “Network & Internet.”
• In the Network & Internet settings, click on “Ethernet” or “Wi-Fi,” depending on which network connection you want to configure.
• Click on “Change adapter options.”
• Right-click on the network adapter you want to configure and select “Properties.”
• In the Properties window, scroll down and select “Internet Protocol Version 4 (TCP/IPv4)” or “Internet Protocol Version 6 (TCP/IPv6), depending on your network setup. Click on “Properties.”
• In the IPv4 or IPv6 properties, select the option to use the IP address manually. Enter the desired IP address, subnet mask, default gateway, and DNS server information.
• Click “OK” to save the changes. The IP address will be assigned to the network adapter.

Dynamic IP Address Assignment via DHCP

If you want Windows to automatically assign an IP address through DHCP, follow these steps:

• Go to Settings and select “Network & Internet.”
• Select “Ethernet” or “Wi-Fi” depending on the network connection you want to configure.
• Right-click on the network adapter and select “Properties.”
• In the Properties window, scroll down and select “Internet Protocol Version 4 (TCP/IPv4)” or “Internet Protocol Version 6 (TCP/IPv6),” depending on your network setup. Click on “Properties.”
• In the IPv4 or IPv6 properties, select the option to obtain an IP address automatically. Ensure that both “Obtain an IP address automatically” and “Obtain DNS server address automatically” are selected.
• Click “OK” to save the changes. Windows will now assign the IP address automatically through DHCP when the device connects to the network.

These steps apply to Windows 10, but the process is similar on other versions of Windows, such as Windows 8 and Windows 7. By manually assigning IP addresses or configuring Windows to obtain IP addresses dynamically through DHCP, you can effectively manage and connect your Windows devices to the network.

Assigning IP Addresses on Mac

Assigning IP addresses on a Mac is a straightforward process that can be done through the network settings in the operating system. Mac computers provide an easy interface for manual (static) IP address assignment as well as dynamic IP address assignment through the Dynamic Host Configuration Protocol (DHCP).

To manually assign an IP address on a Mac, follow these steps:

• Click on the Apple menu in the top-left corner of the screen and select “System Preferences.”
• In the System Preferences window, click on “Network.”
• Select the network connection you want to configure from the list on the left (e.g., Wi-Fi, Ethernet).
• Click on the “Advanced” button.
• In the Advanced settings, go to the “TCP/IP” tab.
• In the “Configure IPv4” or “Configure IPv6” dropdown menu, select “Manually.”
• Enter the desired IP address, subnet mask, router (default gateway) address, and DNS server addresses.
• Click “OK” to save the changes and close the network settings.

To configure a Mac to obtain an IP address automatically through DHCP, follow these steps:

• Open the Apple menu and select “System Preferences.”
• In System Preferences, click on “Network.”
• Choose the network connection you want to configure from the left-side panel.
• From the “Configure IPv4” or “Configure IPv6” dropdown menu, select “Using DHCP.”
• Optional: You can also configure additional DHCP options by clicking on the “DHCP” tab.

It’s important to note that these steps may slightly vary depending on the version of macOS you are using. However, the general process remains the same across different versions.

By manually assigning IP addresses or configuring your Mac to obtain IP addresses automatically through DHCP, you can manage your network connections efficiently and ensure seamless communication between your Mac and other devices on the network.

Assigning IP Addresses on Linux

Assigning IP addresses on a Linux system can be done through the command-line interface or using the network configuration tools available on different Linux distributions. Linux provides flexibility and various methods for both manual (static) IP address assignment and dynamic IP address assignment through the Dynamic Host Configuration Protocol (DHCP).

To manually assign an IP address on Linux, you can follow these general steps:

• Open a terminal or command-line interface on your Linux machine.
• Check the network configuration file for your network interface. This file is typically found in /etc/sysconfig/network-scripts/ and is named based on the interface (e.g., ifcfg-eth0 for Ethernet interface).
• Edit the network configuration file using a text editor like vi or nano .
• Find the line that starts with BOOTPROTO and change the value to static .
• Set the IP address, subnet mask, default gateway, and DNS server information by modifying the corresponding lines in the configuration file.
• Save the changes and exit the text editor.
• Restart the networking service or reboot the machine for the changes to take effect.

Configuring DHCP for dynamic IP address assignment on Linux involves similar steps:

• Check the network configuration file for your network interface ( /etc/sysconfig/network-scripts/ directory).
• Edit the network configuration file using a text editor.
• Find the line that starts with BOOTPROTO and change the value to dhcp .
• Restart the networking service or reboot the machine to activate the DHCP client and obtain an IP address from the DHCP server.

Please note that these steps are general guidelines, and the actual process may vary depending on the Linux distribution you are using. The configuration files and locations might differ slightly, so it’s recommended to consult the documentation or online resources specific to your Linux distribution.

By manually assigning IP addresses or configuring DHCP for dynamic IP address assignment on Linux, you can effectively manage your network connections and ensure seamless communication between your Linux system and other devices on the network.

Troubleshooting IP Address Assignment Issues

IP address assignment issues can sometimes arise when configuring or managing a network. Understanding common problems and troubleshooting techniques can help ensure smooth network connectivity. Here are a few troubleshooting steps to consider when encountering IP address assignment issues:

1. Check DHCP Server Availability

If DHCP is used for IP address assignment, ensure that the DHCP server is operational and accessible. Make sure the DHCP server is configured correctly and has available IP addresses in its address pool.

2. Verify Network Connection

Ensure that the device experiencing IP address assignment issues is properly connected to the network. Check cables, Wi-Fi connections, or any other means of connectivity. Additionally, make sure the network interface on the device is enabled and functioning correctly.

3. Check for IP Address Conflicts

IP address conflicts occur when two devices within the same network have been assigned the same IP address. This can cause connectivity issues. To resolve this, ensure that each device within the network has a unique IP address. Check if any devices have been manually assigned the same IP address or if there are any DHCP configuration errors causing address conflicts.

4. Reset the DHCP Client

If a DHCP client is not acquiring an IP address correctly, try resetting the client’s network settings. This can be done by releasing and renewing the IP address lease. In a command-line interface, use the commands specific to your operating system to release the IP address lease and then renew it (e.g., ipconfig /release and ipconfig /renew in Windows, or dhclient -r and dhclient in Linux).

5. Restart Networking Services

If IP address assignment issues persist, try restarting the networking services on the device. This can help refresh network configurations and potentially resolve any misconfigurations or issues with the network stack. Restarting the network services can vary depending on the operating system or distribution, so refer to the appropriate documentation or online resources.

6. Check Firewall and Security Settings

Firewall or security settings can sometimes interfere with IP address assignment. Ensure that your firewall or security software is not blocking the DHCP traffic or preventing the device from obtaining an IP address from the DHCP server. Adjust the firewall or security settings accordingly to allow DHCP communication.

These troubleshooting steps should address common IP address assignment issues. If the problem persists, consult the documentation specific to your network equipment, operating system, or seek assistance from a network administrator or IT professional for further troubleshooting and support.

Assigning IP addresses is a fundamental aspect of network administration and plays a critical role in establishing connectivity and communication between devices. Whether it’s manual (static) assignment or dynamic assignment using DHCP, the ability to assign and manage IP addresses efficiently is essential for maintaining an organized and functional network.

In this article, we explored the basics of IP addresses, understanding their structure, and the different types available. We also discussed the two primary methods of IP address assignment: manual and automatic. Manual assignment provides control and stability for devices that require static IP addresses, while automatic assignment through DHCP offers convenience and efficient utilization of IP address resources.

We also covered how to assign IP addresses on different operating systems, including Windows, Mac, and Linux. Each operating system provides tools and interfaces to configure network settings and assign IP addresses, whether through a manual process or by utilizing DHCP.

In addition, we touched on troubleshooting techniques for addressing common IP address assignment issues. Verifying DHCP server availability, checking for IP address conflicts, and resetting network configurations are some of the troubleshooting steps discussed to ensure smooth IP address assignment.

Overall, IP address assignment is a fundamental component of network management. By understanding the different methods and addressing any issues that arise, network administrators and users can maintain reliable and efficient connectivity among devices within a network.

Whether you are setting up a small home network or managing a large enterprise network, the knowledge and techniques shared in this article provide a foundation for successful IP address assignment and network operation.

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How to set static IP address on Windows 10

You can assign a static IP address manually on your computer in more than one way, and in this guide, I'll show you four ways on Windows 10.

• To set a static IP address on Windows 10, open Settings > Network & Internet > Wi-Fi (or Ethernet ), click the connection, click “Edit,” select “Manual,” turn on “IPv4,” and set the static IP address.
• To manually configure a static network configuration from Control Panel, open Control Panel > Network and Internet > Network and Sharing Center > Change adapter settings , open the network adapter properties, check the “Internet Protocol Version 4 (TCP/IPv4),” click “Properties,” and set the static IP address.
• Alternatively, you can manually set a static IP address from Command Prompt and PowerShell.

On Windows 10, setting a static IP address on your computer may be necessary for various reasons. For example, if you plan to share files in the network , set up a shared printer , enable and use Remote Desktop , or configure port forwarding on the router, you may need to do this.

If you don’t assign a static IP address, services or a port forwarding configuration will eventually stop working. The reason is that devices use dynamic IP addresses assigned by the Dynamic Host Configuration Protocol (DHCP) server (usually the router) by default, which can change anytime, as soon as you restart the machine or after the dynamically assigned configuration lease expires. On the other hand, a static configuration is permanent, and it’ll remain the same until you change it.

Whatever the reason it might be, Windows 10 offers multiple ways to configure a static network configuration through the Settings app, the legacy Control Panel, and the command line using Command Prompt and PowerShell.

In this guide , I will teach you how to set a static IP address to a Windows 10 computer. (You can also use these instructions to configure a static address on Windows 11 .)

Set a static IP address on Windows 10 from Settings

Set a static ip address on windows 10 from control panel.

• Set a static IP address on Windows 10 from Command Prompt
• Set a static IP address on Windows 10 from PowerShell

To set a static IP address manually on Windows 10, use these steps:

Open Settings on Windows 10.

Click on Network & Internet .

Click on “Wi-Fi” or “Ethernet.”

Click on the current network connection.

Click the Edit button under the “IP settings” section.

Select the Manual option from the drop-down menu.

Turn on the “IPv4” toggle switch.

Set a static IP address for use on the Windows 10 computer.

Specify a “Subnet prefix length” (subnet mask). If your network’s subnet mask is 255.255.255.0 , then you should use the subnet prefix length “24.”

Specify a “Default Gateway” address.

Specify a “Preferred DNS” address.

Specify an “Alternate DNS address” (if applicable).

Click the Save button.

After you complete the steps, you can test your settings using your web browser to open a website.

Check if the IP address is static or dynamic

To check if you configured the settings correctly or to tell if your device is using static or dynamic settings, use these steps:

Open Settings .

Click on Wi-Fi or Ethernet .

Select the network connection.

Check whether the computer is using static (manual) or dynamic (automatic) IP address configuration under the “IP settings” section.

Once you complete the steps, you will know if your computer has been configured correctly.

To configure a static IP from the Control Panel, use these steps:

Open Control Panel .

Click on Network and Internet .

Click on  Network and Sharing Center .

Click the Change adapter settings option on the left navigation pane.

Right-click the Wi-Fi or Ethernet adapter and select the Properties option.

Select the “Internet Protocol Version 4 (TCP/IPv4)” option.

Click the Properties button.

Select the “Use the following IP address” option.

Set the static IP address for the adapter – for example, 10.1.2.220 .

Specify a Subnet mask for the network, such as  255.255.255.0 .

Specify a Default gateway (which is usually the router’s IP address).

Confirm the “Preferred DNS server” address under the “Use the following DNS server addresses set Preferred DNS server” section. (It is Usually your router’s IP address or the server IP address that provides the DNS resolution.)

(Optional) Specify an Alternative DNS server. (The computer will use this address if it cannot reach the preferred DNS server.)

Click the OK button.

Click the Close button again.

Once you complete the steps, you can open your web browser and load a website to see if the configuration works.

Set a static IP address on Windows 10 from Command Prompt

To set a static IP address manually from Command Prompt, use these steps:

Open Start .

Search for Command Prompt , right-click the top result, and select the Run as administrator option.

Type the following command to see your current networking configuration and press Enter :

Under the network adapter, note the name of the adapter as well as the following information in these fields:

• Subnet mask
• Default Gateway
• DNS Servers

Type the following command to assign a static IP address on Windows 10 and press Enter :

In the above command, replace “Ethernet0” with the name of your network adapter. Change “10.1.4.220 255.255.255.0 10.1.4.1” with the device IP address, subnet mask, and default gateway address corresponding to your network configuration.

Type the following command to set a DNS server address and press Enter :

In the command, make sure to change “Ethernet0” with your adapter’s name and “10.1.4.1” with the DNS server address of the network.

Type the following command to set an alternate DNS server address and press Enter :

In the command, replace “Ethernet0” with your adapter’s name and “8.8.8.8” with an alternate DNS server address.

(Optional) Type the following command, and if the “DHCP Enabled” is set to “No,” then the static configuration has been applied and press Enter :

After you complete the steps, you can test the new configuration using the ping command (for example ping google.com ) to see if the internet is working. Alternatively, you can open a website to see if the configuration works.

Set a static IP address on Windows 10 from PowerShell

Windows 10 also includes the PowerShell command line console that allows you to use the “NetTCPIP” module to manage networking settings, including the ability to change your computer’s IP address settings. Microsoft recommends using this command-line method instead of netsh .

To set a static IP address on Windows 10 from PowerShell, use these steps:

Search for PowerShell , right-click the result, and select the Run as administrator option.

Type the following command to view your current network configuration and press Enter :

After running the command, note the following information: 

• InterfaceIndex
• IPv4Address
• IPv4DefaultGateway

Type the following command to set a static IP address and press Enter :

In the command, replace the “InterfaceIndex” number (5) with the corresponding number of your adapter. Change “IPAddress” with the static IP address you want to assign to your device. If necessary, change PrefixLength (subnet mask) with the correct bit number. Typically, on a home network, the setting is “24.” Also, change the “DefaultGateway” option with the network’s default gateway address.

Type the following command to assign a DNS server address and press Enter :

If you need to set a secondary DNS server address, use a comma to use the same command with another address. For example:

In the command, replace the “InterfaceIndex” number (5) with your network adapter’s corresponding number. Also, change “ServerAddresses” with the DNS IP address.

(Optional) Type the following command, and if the “PrefixOrigin” and “SuffixOrigin” are set to “Manual” in the output, then the static configuration has been applied, and press Enter :

After you complete the steps, you can test the new configuration by opening your web browser and navigating a website.

Whatever method you use, assigning an IP address within the network range and outside of the DHCP server scope is recommended to allow proper connectivity and prevent address conflicts. If multiple devices share the same address, this will cause a networking conflict, preventing connection to the internet.

Although there are two main standards in use today, including IPv4 and IPv6 , version 4 is still the most widely used, especially in local networks, and for this reason, this guide focuses on setting up IPv4.

Update July 4, 2024: This guide has been updated to ensure accuracy and reflect changes to the process.

Mauro Huculak is a Windows How-To Expert who started Pureinfotech in 2010 as an independent online publication. He has also been a Windows Central contributor for nearly a decade. Mauro has over 15 years of experience writing comprehensive guides and creating professional videos about Windows and software, including Android and Linux. Before becoming a technology writer, he was an IT administrator for seven years. In total, Mauro has over 21 years of combined experience in technology. Throughout his career, he achieved different professional certifications from Microsoft (MSCA), Cisco (CCNP), VMware (VCP), and CompTIA (A+ and Network+), and he has been recognized as a Microsoft MVP for many years. You can follow him on X (Twitter) , YouTube , LinkedIn and About.me . Email him at [email protected] .

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Static IP vs. dynamic IP addresses: What's the difference?

Static IP addresses are typically used for servers, routers and switches. Dynamic IP addresses, however, are commonly used for workstations, phones and tablets.

• Damon Garn, Cogspinner Coaction

It's imperative for sys admins to manage IP addressing properly, even in simple networks. Routers, firewalls and monitoring tools all use IP addresses to uniquely identify and organize network devices.

Network nodes usually have the following three identities:

• Internet Protocol (IP) address.
• Media access control (MAC) address.

Hostnames are assigned by administrators and are descriptive names helpful to human users, such as webserver3.mydomain.internal. MAC addresses are hardcoded on the network interface card (NIC) and are unique to it. IP addresses are logical addresses managed by administrators.

Each network node needs an IP address. These addresses are assigned and configured in two primary ways: static assignment and dynamic assignment.

This article discusses both static and dynamic addressing, what these concepts mean and when to use each one.

Rules to keep in mind

At a minimum, IP address settings consist of the actual IP address and a subnet mask. It is likely, however, that sys admins will also configure the IP address of a default gateway (router) and name resolution servers. These configurations can't contain mistakes or typos, and no duplicate IP addresses on the network are permitted. These are critical factors to keep in mind.

Static IP address assignment

An administrator manually configures static IP addresses on a node. The admin sets the desired IP address, subnet mask, default gateway, name server and other values. While the process is usually simple, admins should keep the following points in mind:

• The sys admin can make no mistakes or typographical errors and must avoid any duplicate IP address assignments for either static or dynamic addressing.
• The process is easy but time-consuming when calculated against every device on the network.
• Any updates or modifications to the IP settings also must be configured manually.

In practice, static IP address assignments are usually only made to a specific and relatively small part of the network, such as the following:

• Network print devices (though not all admins set static IP addresses on printers).

If these devices are the only ones that are manually configured, how do other devices -- such as workstations, phones or tablets -- get their IP address settings?

The answer: dynamic IP address assignment.

Dynamic IP address assignment

Most network devices temporarily lease an IP address configuration from a central server called a Dynamic Host Configuration Protocol ( DHCP ) server. Administrators configure the DHCP server with a pool of available IP addresses and any additional options. Client machines then connect to the DHCP server to lease a configuration.

As with static IP address assignment, dynamic configurations consist of several related values, including the following:

• IP address and subnet mask.
• Default gateway.
• Name servers.

Network nodes require unique IP addresses, and these addresses can be manually assigned by administrators or dynamically assigned by a DHCP server.

Dynamic assignment is appropriate for client machines that don't need a consistent, unchanging identity on the network. For example, 50 workstations might share and connect to a network print device located at 192.168.2.42. The workstations always expect to find that printer at that address, so that printer needs an unchanging identity. Typically, however, client devices don't host services or resources that must be consistently found at the same address.

Further, client devices tend to be much more temporary than servers, routers and printers. Laptops, tablets and phones come and go on the network daily or even hourly, especially in environments such as coffee shops or libraries.

Static addressing pros and cons

Static IP address configurations are usually for unchanging network devices.

Advantages of static IP addresses include the following:

• The network identity does not change.
• The node can be connected to regardless of name resolution issues.
• Administrators retain tight control over identities.
• Network resources can be mapped to unchanging IP addresses.

Static IP addresses have their disadvantages as well:

• Mistakes cannot be made during static assignment.
• Administrators must not accidentally assign duplicate addresses.
• Setting and changing the IP address configuration is manual and time-consuming.

Dynamic addressing pros and cons

Dynamic IP assignments are best for nonpermanent devices and those that don't often need to be found by other network nodes.

Dynamic IP addresses offer the following advantages:

• The server does not make typographical errors.
• Duplicate IP address assignments are reduced.
• Changing the IP address configuration is quick and efficient.
• Network nodes are easy to identify.

Disadvantages of dynamic IP addresses include the following:

• Nodes will have different identities over time.
• It is more difficult to identify specific nodes on the network.

Tracking IP address configurations

Administrators must track IP address configurations . Tracking doesn't have to be complex, and network services can help.

At its most basic, tracking may consist of a simple spreadsheet that clearly notes the statically assigned IP addresses and the nodes on which they are configured. The spreadsheet should also list the range of addresses included in the DHCP scope that will be dynamically assigned.

Various network services also help administrators track IP address settings. For example, IP address management can track which nodes have which IP addresses. Regardless of which method sys admins use, it's essential for them to document the IP address configuration of their network.

Lease generation and renewal

DHCP clients go through a four-step process to lease an IP address configuration: discover, offer, request and acknowledge -- or DORA.

Because the client devices don't yet have a valid IP address, the entire process takes place via broadcasts. Below is a breakdown of the lease process:

• The client broadcasts a discover message asking for DHCP servers to provide an IP address.
• The DHCP server offers an unassigned IP address from its scope.
• The client formally requests the use of the IP address from the first DHCP server to respond.
• The server acknowledges the request and logs the IP address leased to that network device.

Note that the clients initiate the process, not the server. DHCP servers are passive, awaiting lease requests from clients.

One parameter set by a DHCP server is the lease duration. The leased IP address is not permanent, meaning the client must periodically attempt to renew the address. This enables administrators to update the DHCP configuration and the updates to eventually reach the client devices.

Windows DHCP servers use an eight-day lease by default. This means clients that lease an IP address from the server have a valid configuration for eight days. At the halfway point in the lease -- in this case, four days -- the client attempts to renew its configuration. The renewal is steps three and four of the DORA process: request and acknowledge. The renewal will likely be successful, and the lease duration will reset.

So, why wouldn't a renewal attempt be successful? The DHCP server may have an updated configuration, meaning the client is attempting to renew outdated settings. In this case, the DHCP server fails the renewal attempt, which causes the client device to initiate an entirely new lease generation attempt. Such an attempt provides it with the updated settings.

Automatic private IP addressing

If a client computer cannot lease an IP address configuration from a DHCP server, it uses Automatic Private IP Addressing ( APIPA ) to create a self-generated address.

APIPA addresses use the Class B range 169.254.0.0. The client will generate random values between 1 and 254 for the last two octets. While these addresses may enable a little network connectivity, they are more like error messages. If a client has an APIPA address, sys admins can know the lease generation process failed and begin troubleshooting based on that information.

Sys admins can use tools such as Nmap to identify nodes on the network. These nodes will be displayed by their IP addresses, and admins can use that information for tracking and documenting IP address configurations.

Another useful exercise is to capture the DORA process as it happens by using Wireshark . This is a great way to learn and visualize the lease generation process.

Intrusion detection systems often identify utilities such as Wireshark and Nmap as hacker tools. Such systems may send a warning to the organization's security administrators. Do not run these tools on a production network without express authorization.

We'll dive deeper into troubleshooting in another article. But sys admins can use ipconfig /release and ipconfig /renew on Windows to force the lease generation process. The ipconfig command and its related switches can be helpful for troubleshooting. Use dhclient -r and dhclient on Linux systems to accomplish the same result.

Most network environments rely on a combination of the two approaches: Admins directly configure devices such as servers and routers, while DHCP configures client devices. Each method has its advantages and disadvantages, with benefits centered around convenience and consistency.

The dynamic method uses the four-step DORA process in which a client leases a configuration from a DHCP server and must periodically renew that address. If this process fails, the client assigns itself an address from the reserved Class B range, 169.254.0.0 -- the APIPA range.

Setting up a Windows DHCP server is relatively straightforward, as is managing DHCP client configurations. We'll provide details on both those topics in future articles.

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How to find and manually assign an IP address on Windows 10

Step 1: Open the Control Panel

You can also type control panel in the search bar at the lower left of the screen and press Enter to open the control panel.

Step 2: Go to Network Connections

Go to Network and Internet > Network and Sharing Center .

Select Change adapter settings on the left.

Step 3: Find the IP address

Right click the Ethernet icon and select Status from the context menu.

Then click Details... to view all detailed information of network connection.

Step 4: Set the IP address

Right Click Local Area Connection and select Properties .

Then double click Internet Protocol Version 4 (TCP/IPv4) .

Select Use the Following IP address: and type in the IP address , Subnet mask and Default gateway . Click OK to apply the settings.

Note : If you need to set a static DNS server, select Use the following DNS server address : and input the address of DNS server. By default, the computer obtains the address automatically.

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• When to Use a Static IP Address

Are static IP addresses better than dynamic addresses?

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Static IP Address Uses

• Static vs. Dynamic
• When Not to Use a Static IP

Static IP Address Assignment on Home Networks

• Getting a Static Public IP Address

A static IP address, or fixed IP address , is an IP address that never changes. Not everyone needs a static IP address, but knowing how they differ from dynamic IP addresses can help you understand whether you should use a static IP address.

Here are some example situations for when you might need a static IP address:

• Setting up a home file server .
• Adding a second router to a network.
• Enabling access to a computer when away from home or work.
• Forwarding ports to certain devices.
• Sharing a printer over a network.
• Connecting to an IP camera when away from home.

Static & Dynamic: What They Mean

The terms static and dynamic are simple to understand. At the core, the only real change you'll notice between static versus dynamic IP addresses is that the former never changes, while the latter does.

Most people don't care if their IP address changes. If you never know what your IP address is and never have a reason to keep it the same, then dynamic addresses are fine for you.

However, if your network or computer is set up in a specific way where some devices would work easier and set up would be smoother for you as the admin if an IP address always stayed the same, then static addressing is what you want.

Static IP addresses are assigned manually by an administrator. In other words, the device receiving the static IP is given a specific address (such as 192.168.1.2 ), and from then on, the address never changes.

Dynamic IP addresses are not assigned manually. They are assigned automatically by DHCP (Dynamic Host Configuration Protocol).

When Static IP Addresses Are Used

Static IP addresses are necessary for devices that need constant access.

For example, a static IP address is necessary if your computer is configured as a server, such as an FTP server or web server. If you want to ensure that people can always access your computer to download files, force the computer to use a static, never-changing IP address.

If the server was assigned a dynamic IP address, it would change occasionally, preventing your router from knowing which computer on the network is the server.

If you want to access your home computer while you're on a trip or your work computer when you're at home, setting up the computer to use a static IP address lets you reach that computer at any time without fearing that the address will change and block your access to it.

A shared printer is another example of when to use a static IP address. If you have a printer that everyone in your house or office needs to share, give it an IP address that won't change no matter what. That way, when every computer is set up to connect to that printer, those connections remain indefinitely because the address never changes.

Here are some other reasons to use static IPs:

• They provide slightly better protection against network security problems than DHCP address assignment provides.
• Some network devices don't support DHCP.
• They help avoid potential  IP address conflicts where DHCP might supply an address already assigned elsewhere.
• They provide geolocation that's more accurate than a dynamic IP address.

When Not to Use a Static IP Address

Because a static IP address is assigned manually, it's less efficient for a network admin to give it out, especially in mobile situations. Someone must visit the device in person to give it an IP address instead of letting DHCP assign the address automatically.

For example, you wouldn't set a static IP address on a smartphone because the moment it reaches another Wi-Fi network, the address might not be supported on that network, meaning that it won't be able to access the internet.

Dynamic addressing is more convenient in this situation because it's easy for administrators to set up. DHCP works automatically with minimal intervention needed, allowing mobile devices to move between different networks seamlessly.

Businesses are more likely to use static IP addresses than home networks. Implementing static IP addresses isn't easy and frequently requires a knowledgeable technician.

However, you can have a static IP address for your home network. When making static IP assignments for local devices on home and other private networks, the address numbers should be chosen from the  private IP address  ranges defined by the Internet Protocol standard:

• 10.0.0.0–10.255.255.255
• 172.16.0.0–172.31.255.255
• 192.168.0.0–192.168.255.255

These ranges support thousands of IP addresses. It's common for people to assume they can choose any number in the range and that the specific choice doesn't matter much. This is untrue.

To choose and set specific static IP addresses suitable for your network, follow these guidelines:

• Do not choose any addresses that end with .0 or .255 . These addresses are usually reserved for use by network protocols .
• Do not choose the addresses at the beginning of a private range. Addresses like 10.0.0.1 , 192.168.0.1 , and 192.168.0.100 are commonly used by network routers and other consumer devices. These are the first addresses hackers attack when trying to break into a private computer network.
• Don't choose an IP address that falls outside the range of your local network. For example, to support all addresses in the 10.x.x.x private range, the subnet mask on all devices must be set to 255.0.0.0. If they aren't, some static IP addresses in this range don't work.

How to Get a Static Public IP Address

Internet service providers (ISP) traditionally assign all their IP addresses to customers dynamically, due to historical shortages of available IP numbers.

Contact your service provider if you prefer a static IP address. You can't get a static public IP address without requesting it from your ISP. Customers can sometimes obtain a static IP by subscribing to a special service plan and paying extra fees.

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• What Is a Static IP Address?
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• How to Work With the 10.1.1.1 IP Address
• What Is the 10.0.0.1 IP Address?
• Understanding the 192.168.1.100 IP Address
• What Is a Public IP Address? (and How to Find Yours)
• How to Fix a 169 IP Address Error
• How to Use an IP Address to Find a MAC Address
• How Is 192.168.1.2 Used?
• Computer Networking Tutorial - Internet Protocol

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How are IP addresses actually assigned?

I'm having a hard time understanding how a governing body assigns IP addresses, companies use BGP to advertise those IPs, and how the internet works. Then, where the hell does DNS come in?

Can anyone suggest a good read of how this stuff actually works? I suppose I have several questions. The first is, does ARIN (or any other governing body) actually matter? If they weren't around, would there be chaos? When they assign a block, they don't LITERALLY assign it? You have to use BGP to advertise, correct? I have always been used to a closed hosting environment (dedicated/shared) where you have routed IPs.

Then, how does DNS come in to play? With my registrar I am able to register a DNS server (eNom) - what does that actually mean? I've installed Bind and made all of that work, and I run my own DNS servers, but who are they registering that DNS server with? I just don't get it.

I feel like this is something I should know and I don't, and I'm getting really frustrated. It's like.. simple.. how does the internet work? From assigning IPs, to companies routing them, and DNS.

I guess I have an example - I have this IP space let's say 158.124.0.0/16 (example). The company has 158.124.0.0/17 internet facing. (First of all, why do companies get blocks of IPs assigned and then not use them? Why don't they use use reserved internal space 10.x and 192.x?). So, that's where I'm at. What would I do to actually get these IPs on the Internet and available? Let's say I have a data center in Chicago and one in New York. I'm not able to upload a picture, but I can link one here: http://begolli.com/wp-content/gallery/tech/internetworkings.png

I'm just trying to understand how from when the IP block is assigned, to a company using BGP (attaining a public AS #?), and then how DNS comes in to play?

What would something look like from my picture? I've tried to put together a scenario, not sure if I did a good job.

• domain-name-system

• 6 As a professional system administrator, or someone working in a related field, we are expected to know these things. For any bits that may be a little unclear vast numbers of books and Internet articles have already been published. This is also not the kind of question, or set of questions, that can be properly addressed by a Q&A site like SF. –  John Gardeniers Commented May 31, 2011 at 22:48
• 2 I don't really have a problem with this question - I look at it the same way as the "Subnetting 101" question & answer: It's something every sysadmin should know, but some may have slipped through without the requisite knowledge. We can't cover it as exhaustively as subnetting, but I think having it as a quick-and-dirty primer is a Good Thing. –  voretaq7 Commented Jun 1, 2011 at 15:50
• 1 @John - I think there are many different levels. Like I stated, I grew up learning in a static environment as far as networks went. I never really dealt with ISPs, border routers, and configuring blocks of IPs. I have had the pleasure of having many dedicated servers, configuring linux distributions, securing them, running web applications, and being able to manage those boxes. There are different sides to the spectrum, and I don't think we are expected to know these things. We are expected to know specialized tasks. Some people know networking engineering real well.. others do not. –  Vegim Commented Jun 2, 2011 at 16:08

4 Answers 4

Leased ip blocks.

IPs are assigned in blocks by IANA to the Regional Internet Registries (RIR). See this ( list and map ) of the RIRs. The RIRs then lease out smaller blocks IPs to individual companies (usually ISPs). There are requirements (including fees and proof of use) for getting a distribution and failing to maintain these means a loss of lease.

Once a company has leased one or more blocks from the RIR, they need some way of telling the rest of the world where to find a particular IP (or set thereof: subnets). This is where BGP comes into play. BGP uses a large network concept called an Autonomous System (AS). The AS knows how to route within itself. When routing to another network it only knows about AS Gateways and where the "next hop" toward those external addresses. AS numbers are managed by IANA as well.

Within an AS, even one as large as an ISP, they might use several routing protocols (RIP, OSPF, BGP, EIGRP, and ISIS come to mind) to route traffic internally. It's also possible to use Static Routing Tables, but entirely impractical in most applications. Internal routing protocols are a huge topic, so I'll simplify by saying there are other questions on Server Fault that can do those topics more justice than I can here.

Humans don't remember numbers well, so we invented host names. Skipping the history, we use the Domain Naming System (DNS) to keep track of what hostname points to what IP address. There is a central registry for these, also managed by IANA, and they determine what Top Level Domains (TLD) (eg ".com" or ".net") go in the Root Zone, which is served by the Root Servers. IANA delegates administration of the "root zone", this administrator only accepts updates from qualified Registrars.

You can use a Registrar to "purchase" a domain name, which is a subdomain of a TLD. This registration essentially creates that subdomain and assigns you control over it's Name Server (NS) and Glue (A) records. You point these to a DNS server that hosts your domain . When a client wants to resolve your IP from a domain name, the client contacts their DNS server which does a recursive lookup, starting with the root server, finding your DNS server and eventually getting the relevant information.

Everyone Agrees

As for the "governing bodies": everyone just agrees to use them. There are no (or very few) laws requiring anyone to cooperate at all. The Internet works because people choose to cooperate . The governing bodies provide a means of easy cooperation. All the various RFCs, "Standards", and such - nobody is being forced to use them. But we understand that society is built on cooperation, and it's in our own self interests to do so.

The efficiency bred by cooperation is the same reason BGP is popular, everyone basically agrees to use it. In the days of ArpaNet they started with hand configured route tables; then gradually progressed to a more comprehensive system as the Internet grew in complexity, but everyone just "agreed" to use whatever new standard. Similarly name resolution stated with host files that networks would distribute, and eventually grew into the DNS system we know today. ("Agreed" in quotes because many times a minority set a requirement for a new standard and nobody else had a better alternative, so it was accepted).

This level of cooperation requires trusting IANA, a lot. As you've seen they manage most of the various systems' cores. IANA is currently a US Government sponsored Non-Profit corporation (similar to the US Post Office), it is not part of the government, though only barely removed. In past years there was concern that the US Goernment might exercise some control over IANA as a "weapon" against other world governments or civilians (particularly through laws like SOPA and PIPA, which were not passed, but may be the basis for future laws).

Currently IANA has taken it upon themselves to raise funding (despite being a non-profit company) through the creation of new TLDs. The "xxx" TLD was viewed by some as an extortionist-style fundraising campaign, as a large percentage of registrants were "defending" their name. IANA has also taken applications for privately owned TLDs (at $180,000 each; they have suspended the application process after being inundated with applications, nearly half being from Amazon alone. Many of these applications resulted in new gTLDs .

• No problem! Good answer - this will be good to have to point to for people needing the overview. –  Shane Madden Commented Jun 1, 2011 at 1:05
• Do you think you could elaborate on the delegations for reverse DNS? This is a great answer that touches on the related subjects already, so adding that info would close the loop on the whole thing. –  Andrew B Commented Feb 28, 2015 at 20:59

All advertisements to the public internet, the DFZ (Default-Free Zone), is done via BGP (Border Gateway Protocol), how ISP's do internal routing varies a lot. Most would use BGP internally as well both between their own routers (BGP is often used in conjunction with an IGP such as OSPF) and also with clients, if you don't have your own AS number you can use a private AS to peer with your ISP and when they announce your address space to the DFZ they simply remove the private AS from the as-path. For smaller non-redundant links you can use static routing as well on the PE. The actual "assignment" is just in the database of your registrar, the whois database, RIPE/ARIN etc run their own databases for this purpose.

Try running the command whois 158.124.0.0/16 on a Linux box.

Same goes with DNS, the reverse DNS server is specified in whois records.

This is a very old question, but I had many of the same questions in figuring out how the Internet works . Like the other answers, the networking books give an overview of BGP and DNS but still left me confused. For example, a.root-servers.net through m.root-servers.net are given as the root servers, but how does a DNS service know where to find those servers if they can't use DNS themselves.

The basics of IP, subnetting, DNS, etc. are assumed to be known by this answer. I am addressing "gaps" I, and probably the questioner, have on how the Internet works. By no means am I an expert, but this is my understanding of the gaps.

IP Addresses

The first thing to note is that when the Internet started out as ARPANET, everybody knew everybody and routing tables for IP addresses were handcoded. I assume the assignment process for IP's was done over the phone. As the Internet became too big, BGP was used by multiple networks (AS's) to advertise they had public IP's or could get to a public IP through their AS to another AS. The trust was there that an AS wouldn't advertise an IP they didn't have.

Today, there's not as much trust. Instead, ISP's can download and authenticate the IP allocations to each AS from IANA and the regional authorities. These downloads are now authenticated through public key cryptography. So when IANA "assigns an IP address," they are changing their record (or really the regional authority changes their record). All other AS's can download and authenticate their records.

These records are important because ISP's can't take the word of other ISP's that they have the IP addresses. The ISP's can compare the BGP advertisement with the authenticated IP records. If any BGP advertisement shows the last AS as an AS other than what's in IANA's and RIR's authenticated record, the BGP advertisement does not change their own routing.

More commonly, a rogue ISP or AS can advertise they have a route through their AS they don't have. AS1 has an IP registered and AS5 currently uses AS5 -> AS4 -> AS3 -> AS1 -> IP. AS2 advertises to AS5 a route of AS5 -> AS2 -> AS1 -> IP. Except AS2 doesn't actually have a connection with AS1. It can just lose the packets, maybe to frustrate AS1's hosting customers. Or AS2 could be a small company network with a multihomed arrangement with AS5 and AS1. Their router is misconfigured and advertises a path through a small company network. Nearly all ISP's throw away such advertisements of their BGP customers and only pass on terminating BGP advertisements.

More likely, you have the case of Pakistan trying to shut off Youtube in Pakistan through such IP hijacking, and shutting off Youtube outside of Pakistan too since AS's outside of Pakistan assumed their BGP advertisements were correct.

In the end, there isn't a perfect defense against such IP hijacking. In most countries like the US, such abuse of BGP can be punished as breach of contract and other ISP's will shut off peering connections with that AS if they have to. An ISP could also disregard the whole IANA and RIR apparatus and redirect the IP addresses to their own servers. That won't work for any https sites though, assuming the ISP doesn't have the private keys for any CA's. There is very little to gain from it economically. It only happens with authoritarian governments, such as Egypt recently shutting off all BGP advertisements to their ISP's from outside the country.

DNS Servers

DNS is somewhat simpler once the IP tables are correct. The root servers are all hardcorded IP addresses in the DNS server code. a.root-servers.net is 198.41.0.4 and the IP address is anycast within one AS. In the case of a.root-servers.net, the AS is Verisign and there are five different sites. In the US, the two sites are New York and LA. Anycasting is like if you had an address of 123 Main Street and you said "It doesn't matter what town you are in, go to 123 Main Street and you'll find one of my businesses." Both 123 Main Street in NY and LA will give the same answer for all top-level domains. The AS, in this case Verisign, figures out internally which server has the fewest hops through OSPF, internal BGP, and other routing protocols. So a router in Denver may go to LA while a router in Chicago goes to New York. The same routing process can be used for Anycast hosts because the hosts don't offer to route traffic.

One of the root servers gives which IP address for the com top-level domain. Then that domain gives the domain for yoursite.com. The registrars really have a contract with whoever runs the top-level domain. So if the top-level domain currently doesn't have a record for yoursite.com, it has access to add a record with their who-is server. Then, with the access the registrar gave you to yoursite.com's DNS records, you change the records in their DNS server to go to your IP address.

Because DNS all depends on multiple IP addresses going to the right place, you have the same issue as before with AS's authenticating the IP registry and then the BGP assignments. That is the key piece for an http website. Https has the added protection of certificates. So, an ISP can't reroute requests for their own root servers and top-level domain servers to give their own IP for, say, citibank.com. If they did, the IP address given to the user will be a different IP address, but their server won't have Citibank's private key.

and no, I'm not kidding(I got started with this book 15 years ago, but it's still very relevant): http://www.amazon.com/Internet-Dummies-John-R-Levine/dp/0764506749

Then, come back here with the BGP questions =)

• 2 It looks like the first part of your answer go chopped off somehow. –  John Gardeniers Commented Jun 1, 2011 at 1:34

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What is IPv4 Autoconfiguration and why it overwrites static IP

I have to connect to a router with a static IP and subnet (machine automation, not internet). In ipconfig, subnet mask shows the subnet address I inputed but the IP is assigned a different one from the address I inputted. The previous computer connects properly and the only difference I notice in ipconfig is the new computer has "Autoconfiguration IPv4".

What is IPv4 Autoconfiguration? IP should be assigned from the router's DHCP, and if there is a IP-MAC conflict I should receive an error message. Why is IPv4 Autoconfiguration appear in PC's command prompt instead of the usual IPv4 in this case?

Googling yield a solution but that require modification of the registry to disable Autoconfiguration. I had already had the latest driver update. I suspect there is an alternative solution.

• wireless-networking

• Please provide a screenshot of the network connection’s IPv4 properties, where you entered your desired IP address etc. –  Daniel B Commented Aug 22, 2017 at 6:09
• Picture uploaded. As you see I set IP to be 100.0.0.255/255.255.0.0 but ipconfig shows Autoconfiguration IPv4 169.254.196.218/255.255.0.0 –  KMC Commented Aug 22, 2017 at 6:55
• It might be that Windows incorrectly assumes that .255 is an incorrect IP, but it is valid with that subnet mask. Did you try any other IP addresses? –  Paul Commented Aug 22, 2017 at 6:59
• Unfortunately I cannot since the device is fixed sending message only to 255. Why would OS autoconfiguration IPv4? Shouldn't that be the job of the router's DHCP? –  KMC Commented Aug 22, 2017 at 7:11
• Just making sure: You’re positive you set up the correct network adapter? –  Daniel B Commented Aug 22, 2017 at 7:19

6 Answers 6

The screenshot shows an IPv4 address that start with 169.254.

This is from the "link local" range (e.g., RFC 3927 page 31 discusses what Windows XP using these addresses). Some people call these addresses "APIPA" addresses, named after Windows XP's process called Automatic Private IP Assignment (APIPA).

It seems that as technology has advanced, there are now two causes that commonly resulting in an address in this range.

• Windows will use this if it is set to use DHCP, and it tries to get an address from a DHCP server, and fails.
• "Duplicate Address Detection" ("DAD") has resulted in noticing an IP address conflict. From the comments that have been made, it seems that the feature of "Duplicate Address Detection" detection may also result in automatically assigning a different IP address, even if an IP address is statically configured.

The potential fixes to having such an address can be:

• check the logs to see if there is anything mentioned about a duplicate IP address. If so, try to determine what other device had that address, and why it did. If it got that address by DHCP, try to determine which DHCP server was used by each address that got that address, and troubleshoot the DHCP server(s). (Note that accidentally having an unknown extra DHCP server might be a common cause for this.)
• get DHCP communication functioning successfully,
• or to go to the NIC properties and specify an "Alternate Configuration" process that uses a specified "User configuration", or to use a static IP address.

Why DHCP isn't working is a separate question. This is the correct answer for specifically what you asked, which is: "What is IPv4 Autoconfiguration".

As for why DCHP overwrites static IP: DHCP usually doesn't. If you see an Autoconfiguration address in Microsoft Windows, then you're not using a "static IP" assignment. (Instead, you're configured to be trying to use DHCP, or DAD is taking effect.)

According to one comment (which was made via a proposed suggested edit), newer versions of Microsoft Windows may silently set an autoconfig IP (instead of showing a message on the screen). This is likely caused by DAD.

Trying to disable DAD might not be a great way to fix the problem, as that may cause the computer to start working on the desired IP address, but not address the issue that another device is trying to use the same IP address (which may cause problems immediately, or later when the other device starts being more active again).

• It's worth noting that in the time since this answer was written, RFC 3927 has been rejected . –  Brett Holman Commented Jun 6, 2022 at 14:11
• 4 @BrettHolman I don't see that being the case. Having reviewed this (because I understand an RFC may be deprecated/obsoleted, but never heard of an RFC being "rejected"), I've determined that Errata ID 6293 has been rejected. Errata ID 6293 seems to be a proposed complaint/correction/update about RFC 3927, and this Errata was probably rejected due to a procedural concern: the rejector seems to indicate that if that text is going to be properly updated than that should happen by drafting a new RFC, not making an Errata on the old RFC. (So the RFC itself was never "rejected" that I can see.) –  TOOGAM Commented Jun 15, 2022 at 18:43
• Thank you for the clarification, I mistook the attached Errata rejection for rejection of the RFC. I really appreciate the response :) –  Brett Holman Commented Jun 16, 2022 at 14:38

As the alternative to editing registry you can try this solution:

• open command line
• check id of network connection - it will be in the 1st column: netsh interface ipv4 show inter
• run this command replacing <id> with id of your network connection: netsh interface ipv4 set interface <id> dadtransmits=0 store=persistent
• open services.msc and disable dhcp client
• disconnect network cable, restart computer, start dhcp client service and plug in network cable

source: http://the-it-wonders.blogspot.com/2013/04/autoconfiguration-ipv4-address-196254xx.html

Since I can't add comment to TOOGAM's answer: autoconfiguration apparently can overwrite static ip configuration. Today I had a laptop (with Windows 10, version 1709) that couldn't access network and had both static ip and autoconfiguration ip visible in ipconfig output even though I put static ip in network card configuration.

• Thanks jacob_w. This happened to us today too for no apparent reason, and your fix made it work. We've done many machines the same way and this is the first time we've seen this, so go figure. If anyone works out the actual reason this happens, please post. –  radsdau Commented Jun 12, 2018 at 6:11
• I feel pretty certain that steps 4 and 5 could be replaced by this: run IPConfig /release and then run IPConfig /renew . That may take a while, but would be faster (and easier) than the steps 4 and 5 provided, and would fully accomplish the critical steps that would happen by performing the longer steps 4 and 5 listed here. The basic reason either approach (either version of steps 4 and 5) would work is simply re-attempting a DHCP Discover or DHCP Request communication. –  TOOGAM Commented Dec 15, 2019 at 14:24
• 1 If that works, the typical real problem is unreliability with the DHCP process. That could happen due to bad networking (bad center of cables, loose connection in the connectors of cables, wireless signal interference, filled DHCP scope which may randomly have an available address based on other devices)... maybe too many possible causes to list them all here, but not caused by a bad registry setting. –  TOOGAM Commented Dec 15, 2019 at 14:28

I had the same issue and in my case i had a static IP

So the Comment by another person "As for why it overwrites static IP: It doesn't. -- Is Incorrect

In my scenario it was one of the VMs and there was another VM with the same IP. Instead of throwing the error about duplicate IP in my case it performed Auto Configuration

• 1 this was my issue. i'm working with a printer that has a static ip of 192.168.123.100. I connected this printer to my laptop through ethernet, and also set the NIC ip to be 192.168.123.100, but because it conflicted with the printer's ip, the NIC defaulted back to 169.254. –  Simon Commented Sep 12, 2019 at 18:22
• On professionally-run networks I've encountered, we didn't typically have encounter duplicate addresses, so "duplicate address detection" wasn't actively affecting things. The " Obtain an IP address automatically " option basically boiled down to attempting DHCP, and if that failed, using the Alternate Configuration tab (which was usually unconfigured, resulting in APIPA assigning an IPv4 (169.254.*) link-local address. The " Use the following address " option resulted in a static IP, not causing DHCP or Link-Local to work. –  TOOGAM Commented Dec 15, 2019 at 14:41
• I suspect that if Duplicate Address Detection (DAD) is being particularly useful, that may be because of some sort of issue with DHCP (e.g., server doesn't exist on the LAN being used, which may be quite likely with some "virtual machine" setups... or a filled DHCP scope, which may be remedied with an increased scope size or figuring out what is using up the addresses in an existing scope). My inclination would be to figure out why DHCP is not being a working, reliable solution, and trying to address that as a problem. (Of course, that works for me, who knows how to set up/troubleshoot DHCP) –  TOOGAM Commented Dec 15, 2019 at 14:44
• 2 Question is about static IP –  SeanClt Commented Dec 15, 2019 at 15:21

I had the same issue. I read that this is because the NIC card is not working properly, even though the Ethernet card said it was working properly. I have an HP desktop computer. I went to HP support, downloaded and reinstalled the Realtek Ethernet Controller Drivers for it and it fixed the card problem. No more autoconfiguration ipv4 address. Hope this help others.

• 2 You say "No more autoconfiguration ipv4 address." But that's wrong, based on the output you quote, as the output says " Autoconfiguration Enabled . . . . : Yes ". What is true is that you didn't get an Autoconfiguration address from the "Link-local" (IPv4 169.254.*) range. Instead, your Autoconfiguration successfully got an address from the DHCP server, which is identified in your output on the line that says " DHCP Server . . . . . . . . . . . : 172.16.0.1 ". So whatever device is at 172.16.0.1 (which is also your Default Gateway, so is some type of router) served you well, with DHCP. –  TOOGAM Commented Dec 15, 2019 at 14:32

Its caused by a conflicting IP address. (Someone else on the same network has the same IP).

Changing the static IP helped me, but i am aware its not always practical. For me it worked because i connect to this computer alone.

• 1 Your answer could be improved with additional supporting information. Please edit to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers in the help center . –  Community Bot Commented May 4, 2023 at 12:06

I had the same issue.

I had a hyper-v instance with several network adapters, all set with static IP addresses.

One instance was set up with 8 network adapters, all static IP. One adapter would have an auto configured ipv4 169 address, eventhough I set it with a static IP. Very frustrating, and after trying many other things I figured it out. It had been set with a static IP address that was already taken by another device. Simply changing the static IP address fixed the autoconfigured 169 issue.

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How do ip addresses work.

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What is an ip address, what's the difference between ipv4 and ipv6, how does a device get its ip address.

Every device connected to a network---computer, tablet, camera, whatever---needs a unique identifier so that other devices know how to reach it. In the world of TCP/IP networking, that identifier is the Internet Protocol (IP) address.

If you've worked with computers for any amount of time, you've likely been exposed to IP addresses---those numerical sequences that look something like 192.168.0.15. Most of the time, we don't have to deal with them directly, since our devices and networks take care of that stuff behind the scenes. When we do have to deal with them, we often just follow instructions about what numbers to put where. But, if you've ever wanted to dive a little deeper into what those numbers mean, this article is for you.

Related: 8 Common Network Utilities Explained

Why should you care? Well, understanding how IP addresses work is vital if you ever want to troubleshoot why your network isn't working right , or why a particular device isn't connecting the way you'd expect it to. And, if you ever need to set up something a little more advanced---like hosting a game server or media server to which friends from the internet can connect---you'll need to know something about IP addressing. Plus, it's kind of fascinating.

Note: We're going to be covering the basics of IP addressing in this article, the kind of stuff that people who use IP addresses, but never really thought much about them, might want to know. We're not going to be covering some of the more advanced, or professional, level stuff, like IP classes, classless routing, and custom subnetting...but we will point to some sources for further reading as we go along.

An IP address uniquely identifies a device on a network. You've seen these addresses before; they look something like 192.168.1.34.

An IP address is always a set of four numbers like that. Each number can range from 0 to 255. So, the full IP addressing range goes from 0.0.0.0 to 255.255.255.255.

The reason each number can only reach up to 255 is that each of the numbers is really an eight digit binary number (sometimes called an octet). In an octet, the number zero would be 00000000, while the number 255 would be 11111111, the maximum number the octet can reach. That IP address we mentioned before (192.168.1.34) in binary would look like this: 11000000.10101000.00000001.00100010.

Computers work with the binary format, but we humans find it much easier to work with the decimal format. Still, knowing that the addresses are actually binary numbers will help us understand why some things surrounding IP addresses work the way they do.

Don't worry, though! We're not going to be throwing a lot of binary or math at you in this article, so just bear with us a bit longer.

The Two Parts of An IP Address

A device's IP address actually consists of two separate parts:

• Network ID: The network ID is a part of the IP address starting from the left that identifies the specific network on which the device is located. On a typical home network, where a device has the IP address 192.168.1.34, the 192.168.1 part of the address will be the network ID. It's custom to fill in the missing final part with a zero, so we might say that the network ID of the device is 192.168.1.0.
• Host ID: The host ID is the part of the IP address not taken up by the network ID. It identifies a specific device (in the TCP/IP world, we call devices "hosts") on that network. Continuing our example of the IP address 192.168.1.34, the host ID would be 34---the host's unique ID on the 192.168.1.0 network.

On your home network, then, you might see several devices with IP address like 192.168.1.1, 192.168.1.2, 192.168.1 30, and 192.168.1.34. All of these are unique devices (with host IDs 1, 2, 30, and 34 in this case) on the same network (with the network ID 192.168.1.0).

To picture all this a little better, let's turn to an analogy. It's pretty similar to how street addresses work within a city. Take an address like 2013 Paradise Street. The street name is like the network ID, and the house number is like the host ID. Within a city, no two streets will be named the same, just like no two network IDs on the same network will be named the same. On a particular street, every house number is unique, just like all host iDs within a particular network ID are unique.

The Subnet Mask

So, how does your device determine which part of the IP address is the network ID and which part the host ID? For that, they use a second number that you'll always see in association with an IP address. That number is called the subnet mask.

On most simple networks (like the ones in homes or small businesses), you'll see subnet masks like 255.255.255.0, where all four numbers are either 255 or 0. The position of the changes from 255 to 0 indicate the division between the network and host ID. The 255s "mask out" the network ID from the equation.

Note: The basic subnet masks we're describing here are known as default subnet masks. Things get more complicated than this on bigger networks. People often use custom subnet masks (where the position of the break between zeros and ones shifts within an octet) to create multiple subnets on the same network. That's a little beyond the scope of this article, but if you're interested, Cisco has a pretty good guide on subnetting .

The Default Gateway Address

Related: Understanding Routers, Switches, and Network Hardware

In addition to the IP address itself and the associated subnet mask, you'll also see a default gateway address listed along with IP addressing information. Depending on the platform you're using, this address might be called something different. It's sometimes called the "router," "router address," default route," or just "gateway." These are all the same thing. It's the default IP address to which a device sends network data when that data is intended to go to a different network (one with a different network ID) than the one the device is on.

The simplest example of this is found in a typical home network.

If you have a home network with multiple devices, you likely have a router that's connected to the internet through a modem. That router might be a separate device, or it might be part of a modem/router combo unit supplied by your internet provider. The router sits between the computers and devices on your network and the more public-facing devices on the internet, passing (or routing) traffic back and forth.

Say you fire up your browser and head to www.howtogeek.com. Your computer sends a request to our site's IP address. Since our servers are on the internet rather than on your home network, that traffic is sent from your PC to your router (the gateway), and your router forwards the request on to our server. The server sends the right information back to your router, which then routes the information back to the device that requested it, and you see our site pop up in your browser.

Typically, routers are configured by default to have their private IP address (their address on the local network) as the first host ID. So, for example, on a home network that uses 192.168.1.0 for a network ID, the router is usually going to be 192.168.1.1. Of course, like most things, you can configure that to be something different if you want.

Related: How to Find Your Router's IP Address on Any Computer, Smartphone, or Tablet

DNS Servers

There's one final piece of information you'll see assigned alongside a device's IP address, subnet mask, and default gateway address: the addresses of one or two default Domain Name System (DNS) servers. We humans work much better with names than numerical addresses. Typing www.howtogeek.com into your browser's address bar is much easier than remembering and typing our site's IP address.

DNS works kind of like a phone book, looking up human-readable things like website names, and converting those to IP addresses. DNS does this by storing all that information on a system of linked DNS servers across the internet. Your devices need to know the addresses of DNS servers to which to send their queries.

Related: What Is DNS, and Should I Use Another DNS Server?

On a typical small or home network, the DNS server IP addresses are often the same as the default gateway address. Devices send their DNS queries to your router, which then forwards the requests on to whatever DNS servers the router is configured to use. By default, these are usually whatever DNS servers your ISP provides, but you can change those to use different DNS servers if you want. Sometimes, you might have better success using DNS servers provided by third parties , like Google or OpenDNS.

You also may have noticed while browsing through settings a different type of IP address, called an IPv6 address. The types of IP addresses we've talked about so far are addresses used by IP version 4 (IPv4)---a protocol developed in the late 70s. They use the 32 binary bits we talked about (in four octets) to provide a total of 4.29 billion possible unique addresses. While that sounds like a lot, all the publicly available addresses were long ago assigned to businesses. Many of them are unused, but they are assigned and unavailable for general use.

In the mid-90s, worried about the potential shortage of IP addresses, the internet Engineering Task Force (IETF) designed IPv6. IPv6 uses a 128-bit address instead of the 32-bit address of IPv4, so the total number of unique addresses is measured in the undecillions---a number big enough that it's unlikely to ever run out.

Unlike the dotted decimal notation used in IPv4, IPv6 addresses are expressed as eight number groups, divided by colons. Each group has four hexadecimal digits that represents 16 binary digits (so, it's referred to as a hextet). A typical IPv6 address might look something like this:

2601:7c1:100:ef69:b5ed:ed57:dbc0:2c1e

The thing is, the shortage of IPv4 addresses that caused all the concern ended up being mitigated to a large extent by the increased use of private IP addresses behind routers. More and more people created their own private networks, using those private IP addresses that aren't exposed publicly.

So, even though IPv6 is still a major player and that transition will still happen, it never happened as fully as predicted---at least not yet. If you're interested in learning more, check out this history and timeline of IPv6 .

Now that you know the basics of how IP addresses work, let's talk about how devices get their IP addresses in the first place. There are really two types of IP assignments: dynamic and static.

Related: How to Find Any Device's IP Address, MAC Address, and Other Network Connection Details

A dynamic IP address is assigned automatically when a device connects to a network. The vast majority of networks today (including your home network) use something called Dynamic Host Configuration Protocol (DHCP) to make this happen. DHCP is built into your router. When a device connects to the network, it sends out a broadcast message requesting an IP address. DHCP intercepts this message, and then assigns an IP address to that device from a pool of available IP addresses.

There are certain private IP address ranges routers will use for this purpose. Which is used depends on who made your router, or how you have set things up yourself. Those private IP ranges include:

• 10.0.0.0 - 10.255.255.255: If you're a Comcast/Xfinity customer, the router provided by your ISP assigns addresses in this range. Some other ISPs also use these addresses on their routers, as does Apple on their AirPort routers.
• 192.168.0.0 - 192.168.255.255: Most commercial routers are set up to assign IP addresses in this range. For example, most Linksys routers use the 192.168.1.0 network, while D-Link and Netgear both use the 198.168.0.0 range
• 172.16.0.0 - 172.16.255.255: This range is rarely used by any commercial vendors by default.
• 169.254.0.0 - 169.254.255.255: This is a special range used by a protocol named Automatic Private IP Addressing. If your computer (or other device) is set up to retrieve its IP address automatically, but cannot find a DHCP server, it assigns itself an address in this range. If you see one of these addresses, it tells you that your device could not reach the DHCP server when it came time to get an IP address, and you may have a networking issue or trouble with your router.

The thing about dynamic addresses is that they can sometimes change. DHCP servers lease IP addresses to devices, and when those leases are up, the devices must renew the lease. Sometimes, devices will get a different IP address from the pool of addresses the server can assign.

Most of the time, this is not a big deal, and everything will "just work". Occasionally, however, you might want to give a device an IP address that does not change. For example, maybe you have a device that you need to access manually, and you find it easier to remember an IP address than a name. Or maybe you have certain apps that can only connect to network devices using their IP address.

In those cases, you can assign a static IP address to those devices. There are a couple of ways to do this. You can manually configure the device with a static IP address yourself, although this can sometimes be janky. The other, more elegant solution is to configure your router to assign static IP addresses to certain devices during what would normally be dynamic assignment by the DHCP server. That way, the IP address never changes, but you don't interrupt the DHCP process that keeps everything working smoothly.

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Linux: Display and Manage IP Address Settings

Modern computers and their users rely on network connectivity for nearly everything, including cloud-based applications, software access, data access and communication. It seems that every aspect of computing relies on networking. Linux workstations and servers are no different in this necessity than Windows or macOS systems.

One of a Linux sysadmin’s primary responsibilities is ensuring network connectivity. This requires understanding the system’s identity on the network and configuring it to participate in network data exchanges.

Linux systems have three identities on a network. Various network devices use each identity differently.

Here are the three identities with a summary of their use:

• Hostname : A human-friendly name providing users and administrators with an easy way to identify a node.
• IP address : A logical address routers and network configuration tools use to identify the system.
• MAC address : A physical address on the network interface card (NIC) that uniquely identifies it to switches and other Layer 2 devices.

For example, a computer’s three identities might look like this:

• Hostname: computer27
• IP address: 192.168.2.200
• MAC address: 00:1c:42:73:8d:f2

The use and function of these three network identities are assumed knowledge for this article. Be sure to review basic network information if you need a refresher. You may want to construct a lab environment to practice the commands covered in this article. Refer to this article if you need to review basic Linux command syntax.

Avoid logging on to a Linux system as the root (administrator) user. Most systems force you to log on as a regular user and then use the sudo   (super user do) command and your password to elevate your privileges. Some commands in this tutorial may require the sudo   command on your Linux distribution. You must also use sudo   to open text editors with elevated privileges to manage the network configuration files.

$ sudo vim / etc / resolv . conf

This article examines the use and configuration of the three network identities by giving command examples and offering ways to maintain network settings easily.

Display System Identities

Use the hostname command to display the system’s human-friendly name. This is almost certainly the only way end users will recognize their computer. The hostname may be part of a larger naming structure called a fully qualified domain name (FQDN), indicating the system’s position in a hierarchical naming structure.

A single command also displays IP and MAC addresses, though the output is much less straightforward. Use the ip addr   command to display information about each network interface in the system. Remember that each will have its own unique IP and MAC address. Servers often contain two or more NICs for redundancy or connectivity to multiple segments.

Older Linux systems used the ifconfig   command for this purpose.

How were these values selected and assigned? Administrators configure hostnames when installing the operating system. IP addresses may be manually configured by administrators or dynamically assigned by Dynamic Host Configuration Protocol (DHCP) servers. MAC addresses are hard-coded by their manufacturer. Of these, you’re only likely to change a system’s hostname and IP address, which will probably happen rarely.

Even simple networks get unwieldy quickly, so many IT departments document these configurations for easy reference during troubleshooting.

Manage the System Hostname

The system hostname is typically set when installing Linux. Larger organizations often use a specific naming convention that indicates the system’s role or use in the network. Smaller companies may use simple names. Regardless, the system name must be unique in the environment.

Display the current hostname by typing the hostname   command.

Temporarily change the system’s hostname to comp99   by typing this command:

However, this name assignment will be lost when the system reboots next.

If you need to permanently change the hostname after installing the OS, use the hostnamectl   command. Suppose you need to set the new hostname as comp42   in the mycompany   domain. Use the following command:

This method makes the change persist through reboots. The hostnamectl   command modifies the / etc / hostname   file, so you don’t need to find and edit it directly.

Changing a system’s hostname means that any script, network mapping, or user that references by name will no longer be able to do so. Because of this, it’s generally not recommended to reference systems by their hostnames. IP addresses are often a better way to refer to network servers, printers and other devices.

Manage the System IP Address

Administrators are responsible for assigning IP addresses. They may accomplish this by manually entering a unique IP address on each system in the network (very tedious) or by configuring a server with a pool of addresses from which workstations can lease an IP configuration. Most administrators use a combination of these two approaches by assigning servers and other essential network devices static IP addresses and having workstations and end-user devices lease configurations from a server.

Static IP Address Configuration

Static IP addresses are useful for network nodes that require a consistent and unchanging IP address identifier. Linux servers are a great example of this, as are printers, routers and other infrastructure devices. Manually typing an IP address configuration is time-consuming, and the configuration cannot tolerate typographical errors or duplicate IP address assignments, making this approach very inefficient on a large scale for workstations and client devices.

Since there tend to be fewer servers and similar devices, static assignments work well for these. You can set a temporary IP address that disappears after a reboot or a persistent setting the system retains unless you change it.

Assign a temporary IP address to the eth0 network interface by using the following command:

Remove the static IP address by using the del   subcommand, as seen below:

Note that the commands above do not permanently set the IP address. They only apply to the current runtime and do not persist across reboots.

You’ll probably find that the NetworkManager component of Linux networking is easier for handling network configuration. The tool uses the nmcli   command to manage network settings rather than directly editing network configuration files and restarting network services.

Type the nmcli   command with no flags to see whether NetworkManager is installed:

Not all distributions use nmcli , but most distros related to Red Hat do. If necessary, use the distribution’s package manager (probably APT or DNF) to install NetworkManager. For Debian-type systems, enter sudo apt install network - manager . On Red Hat-related systems, enter sudo dnf install NetworkManager  .

View the network devices to identify the device name you want to work with:

Suppose the output shows a network interface device named enp0s5 . Use the following nmcli   command to configure the eth0   interface with a static IP address of 192.168.2.200, a subnet mask of /24, and a default gateway of 192.168.2.1:

Reload the interface using these nmcli   commands:

Modifying the network configuration files is another way to make the IP address persistent. These files vary by distribution, but here are two common examples.

On Red Hat and similar distributions, use a text editor to edit the following files:

Edit the / etc / sysconfig / network file with the settings for the hostname, default gateway and IPv6 configurations.

Modify the / etc / sysconfig / network - scripts / ifcfg - eth0   file with the appropriate IP address, subnet mask, gateway (default gateway) and at least one DNS server address.

You should restart the networking service using the sudo systemctl restart network   command. Like other commands, this one may vary on different distributions.

Debian and its related distributions (Ubuntu, Mint, etc.) use the Netplan configuration to manage networking. You specify the same kind of information as you do with Red Hat-derived distros. Netplan is an interface to NetworkManager that configures network settings using YAML files.

Edit the default file in the / etc / netplan   directory to add settings for your network interface. Note that this file is in YAML, which is very picky about syntax (especially spaces). Remember to run the text editor using sudo to elevate your privileges.

Here’s a sample of the entry for the enp0s5   interface. Just replace the IP settings with the appropriate values for your network. The dhcp4 : no   parameter sets this as a static IP address. This line will read dhcp4: true if the system is currently a DHCP client.

Save and close the file, then run this command to update the settings:

Confirm the IP address is correct with the ip addr command (or try the hostname - I   command).

Be careful editing the YAML document . YAML is very particular about spacing, so be sure to match the template.

If you want to make the system a DHCP client rather than maintain a static IP address configuration, edit the file by removing the addresses and nameservers lines, then set the DHCP line to dhcp4 : true  . The system will then be a DHCP client.

Use the Graphical Interface for Static IP Configuration

The network settings graphical user interface includes a Manual option that allows administrators to configure IP address, subnet mask, gateway and DNS server entries. Be very careful to avoid typographical errors here. You must also remember that no systems on your network can have the same IP address, so careful documentation of statically assigned IP addresses is required. This configuration tool is similar among various distributions because the same network settings are always needed.

Dynamic IP address Configuration

End-user workstations rarely have to be discovered by other systems on the network. Since business data is typically stored and shared from Linux file servers, there should be  little content on user systems that other systems must reference. Therefore, it’s not necessary to have permanent static IP addresses. Having these devices acquire IP addresses from a central server is far more efficient.

The Dynamic Host Configuration Protocol (DHCP) service enables administrators to define a server with a pool of available IP addresses and all their related settings (subnet mask, default gateway/router, etc.). During the boot process, DHCP client devices send a network broadcast requesting the use of an IP address. The DHCP leases an IP configuration to the client. This process is less difficult, more flexible and quicker than static configurations by administrators. It is also less error-prone.

The DHCP lease generation process consists of four steps initiated by the client system. These steps allow the client to request IP settings and let the DHCP server respond.

Here are the steps:

• DHCPDiscover: A broadcast by the client device asking for a DHCP server.
• DHCPOffer: A response by the DHCP server offering an IP address configuration.
• DHCPRequest: A formal request by the DHCP client to use the offered IP address configuration.
• DHCPAck: An acknowledgment of the assigned configuration by the DHCP server.

The client device periodically checks in with the DHCP server to renew the IP address lease.

Most client devices assume they will be DHCP clients, so that’s usually the default setting. From an end-user’s perspective, this means their computer is self-configuring for network connectivity. You’ll probably leave your Linux system as a DHCP client, whether in a home environment or business network. For example, a Linux laptop will be a DHCP client when connecting to the wireless network at a coffee shop and your home. You want your laptop to configure itself for whatever environment it’s in.

To configure a host as a DHCP client using NetworkManager, type the following command:

Reload the interface with the following nmcli   commands:

As mentioned above, to set a Debian-based distribution as a DHCP client, edit the interface file in the / etc / netplan   directory with the following entry:

Use the Graphical Interface for DHCP

The graphical network configuration tool offers various options, including an Automatic (DHCP) or Manual (static) setting. The Automatic setting configures the system as a DHCP client, enabling it to go through the lease generation process described above.

Most distributions have a very similar GUI network configuration tool. These settings are always required, so any graphical tool should be easy to interpret.

Default Gateway Configuration

The primary settings provided by a DHCP server are the client’s IP address and subnet mask. However, the DHCP server will probably also include a default gateway value. This value is the IP address of the router on the subnet. Client computers don’t require a router to communicate with other nodes on the same subnet, but they do need a router for connectivity with machines on other subnets. If a system needs to send information to a node with a different network ID than its own, it forwards the message to the router. The default gateway value lets the computer know where the router is in this process.

The gateway IP address is part of the IP address setting provided by the DHCP server. If an administrator configures IP addressing manually, they must set the gateway value as part of that configuration.

Configure Name Resolution

The relationship between hostnames and IP addresses is critical. Most people refer to systems by their hostnames, but most network devices recognize the IP address to manage communication. It would be very difficult for end users to remember that 172.16.33.58 is the “color-sales-printer” or 192.168.2.10 is the “dev-dept-fileserver.” Imagine if you had to keep track of all your favorite Internet sites by their specific IP addresses!

Name resolution refers to storing and using information about which hostnames are related to which IP addresses.

The Domain Naming System (DNS) provides name resolution. This service maintains a database of hostnames and IP addresses. If a user types in a command containing a hostname, such as ping server07 , their workstation queries DNS, asking for the IP address for server07  . The computers cannot communicate based on hostnames; TCP/IP communications require IP addresses. However, since IP addresses are challenging for people to remember, they need to be able to refer to systems by name. DNS relates these two values so that the network node and the user can work with the correct data.

Suppose you tell your computer to ping server07  . Since it doesn’t know what to do with this name, it asks the DNS server, which responds with the appropriate IP address.

The process basically looks like this:

• User types ping server07
• Their workstation doesn’t know what server07 is, and it needs an IP address
• The workstation sends a query to the DNS server, asking, “What is the IP address for server07?”
• The DNS server checks its resource records until it finds a record showing “server07 = 192.168.2.22”
• The server responds to the workstation, stating, “The IP address for server07 is 192.168.2.22”
• The workstation runs ping 192.168.2.22

The workstation must know the DNS server’s IP address so it can send the query. This setting is critical for computers. The DHCP server usually provides it, along with the computer’s IP address, subnet mask, and default gateway.

The above example assumes name resolution on an internal business network. Accessing websites on the internet uses a more complicated variation of the process. The concepts are similar, but more DNS servers are involved.

DHCP servers typically provide DNS server IP addresses as part of the standard IP address settings leased to the client device.

If you’re managing a static IP address configuration on your server, you should set the DNS server IP addresses. You can statically configure DNS servers for the client to query using the nmcli   command. Here’s an example:

To configure the client device manually to query a DNS server, edit the / etc / resolv . conf   file. You’ll typically specify two DNS servers (name resolution is important enough to justify multiple servers).

Edit the two nameserver   lines with the IP addresses of your DNS servers.

Be sure to use sudo   to elevate your privileges when editing this file. For example, to use Vim to edit the name resolution file, type:

Display the System’s MAC Address

You can use the ip   command to display the NIC’s MAC address. Doing so may be useful during troubleshooting or when documenting a system’s configuration, but it’s not a setting you’ll often change or use yourself.

Various commands exist to show the MAC address for each network interface card installed on the system. Here are a few examples:

• ip addr  : Displays lots of NIC information, including IP address and MAC address.
• ip link show : Displays the MAC address, MTU size and the status of each NIC.
• ip link show eth0 : Displays the MAC address, MTU size and status of the specified NIC (eth0 in this example).

Figure 11: The IP link command is one of several that displays the MAC address.

Discovering your system’s MAC address can be helpful when working with tools like Nmap , tcpdump  and Wireshark . These troubleshooting utilities display detailed network information, including MAC addresses. You might need to determine where packets originate or what NIC is sending error packets on the network.

When sending information, computers add their own MAC address to data frames. They also add the destination computer’s MAC address. The source computer must discover the MAC address of any destination systems on the same network segment. They find this information using the Address Resolution Protocol (ARP). Each computer also caches (temporarily saves) MAC addresses it discovers for efficiency. You can view and clear this cache.

View the MAC address cache on your Linux computer by using this ip   command:

Viewing the MAC address cache is a good way to learn about your segment’s network devices and troubleshoot failed connections.

Clear the ARP cache with the following command:

Clearing the cache forces the computer to rediscover local MAC addresses, helping ensure the information in the cache is current and accurate.

Recognizing the three identities networked computers use is helpful for security auditing, troubleshooting, system configuration, and more. Each identity is used by a different aspect of the network infrastructure.

• Hostnames: Typically used by people.
• IP addresses: Typically used by computers and routers.
• MAC addresses: Typically used by computers and switches.

Little configuration is available for MAC addresses, and hostnames are usually set during the operating system installation. IP address settings are where most configuration and troubleshooting will occur.

Administrators may configure IP settings manually (called a “static IP address”) or allow systems to lease IP settings from a DHCP server (called “dynamic IP addressing”). Regardless, the common settings are shown below:

• IP address: Logical address that shows what network segment the computer resides on.
• Subnet mask: Indicates which part of the IP address is the network ID and which part is the host ID.
• Default gateway: The IP address of the router.
• Name servers: The IP address of one or more DNS name servers.

Managing and troubleshooting IP addressing is a standard skill for Linux administrators. Expect to work at the command line and graphical interface when managing Linux network nodes. Begin exploring the network settings on your Linux lab computer today.

IP Assignment Agreement Review

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ContractsCounsel has assisted 36 clients with intellectual property assignment agreements and maintains a network of 64 intellectual property lawyers available daily.

An intellectual property (IP) assignment agreement is a legal contract between a party that transfers its intellectual property rights (assignor) to another party (assignee). This agreement outlines the specifics of the transfer, including the type of IP, the scope of the assignment , compensation, and conditions.

How Do I Review an IP Assignment Agreement?

The purpose of an IP assignment agreement is to facilitate the transfer of patents, copyrights , trademarks , and other valuable IP. For this reason, it is vital that an IP assignment agreement is thoroughly reviewed before the parties execute the contract.

To review an IP assignment agreement, follow these steps:

• 1. Read entire contract Before agreeing to sign an IP assignment agreement, you need to read the entire document. You should familiarize yourself with the basic terms found in the contract and ensure that the provisions laid out in the contract accurately represent the agreement between the parties.
• 2. Note key terms and provisions Identify the key terms of the agreement like the type of intellectual property and the rights and restrictions that are attached to the property. Make sure that you understand these terms and make a list of any provisions you’re unsure about or that may need to be readdressed and further negotiated.
• 3. Verify financial terms Be sure to double-check any provisions that include financial terms.
• 4. Be prepared to negotiate If you find any terms that need clarification, modification, or adjustments, prepare to negotiate with the other party to reach an agreement that is fair for both sides.
• 5. Seek legal help Intellectual property assignment agreements can be complex legal documents . Before signing this contract, you should consider seeking legal advice from an experienced intellectual property lawyer . An attorney can provide guidance, review the contract for mistakes, and offer recommendations.

Reviewing an IP Assignment Agreement requires an eye for detail and a deep understanding of the legal implications of transferring intellectual property ownership rights.

When you hire an attorney to review this type of contract, you are ensured that your rights and interests are protected. An intellectual property lawyer will have experience with assignment agreements and will know what terms must be included to make the contract legally binding and enforceable.

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• Connecticut
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What Should I Look for in an IP Assignment Agreement

A comprehensive IP assignment agreement should include the following key terms:

• Party information The names and contact information of the assignor and assignee.
• Intellectual property description A clear and detailed description of the intellectual property being transferred, including the type of IP like whether it's a patent, copyright, trademark, or other type.
• Scope of assignment The extent of the rights to the intellectual property being transferred like whether the assignment encompasses all rights or involves some restrictions.
• Consideration The monetary payment, equity, royalties, or other value being exchanged for the assignment.
• Warranties and representations Any assurances made by the assignor regarding the authenticity of the IP and its non-infringement.
• Termination clause The circumstances under which the assignment can be terminated by either party. This section should include any required notice of termination and consequences for terminating before the contract term is up.
• Governing law and jurisdiction The parties should agree upon what laws and jurisdiction will govern the agreement in case of a dispute.
• Confidentiality Provisions to protect any sensitive information shared between the parties.
• Recordation Whether the assignment will be recorded with relevant authorities like the United States Patent and Trademark Office (USPTO).

If you are unsure what provisions should be added to your agreement to best protect your interests, always consult with an experienced intellectual property attorney.

Benjamin W.

How Does an IP Assignment Agreement Work?

To successful assign intellectual property to an assignee through an assignment agreement, the following process should be followed:

• The assignor (current owner of the IP) and assignee (new owner of the IP) must negotiate and agree on the transfer, including terms like compensation and assignee rights.
• A lawyer familiar with intellectual property assignment should draft the contract incorporating the agreed-upon terms and ensuring legal compliance.
• Both parties are encouraged to thoroughly review the drafted agreement to ensure accuracy, clarity, and mutual understanding. Negotiations can address and fix any discrepancies.
• Once both parties are satisfied with the agreement, they sign the contract, indicating their consent to the terms. Depending on the laws of the jurisdiction, the signatures may need to be notarized.
• Once the contract is signed, the assignor transfers ownership rights to the assignee.
• Depending on the jurisdiction and type of IP, the assignment may need to be recorded with a specific government agency to establish public notice.

Each step in this process is vital to transfer intellectual property rights legally and securely between parties.

What are the Three Major Methods of IP Assignment?

IP assignment typically occurs through three major methods:

• Assignment deed A formal written agreement where the assignor expressly transfers ownership rights to the assignee.
• Incorporation by reference An agreement refers to another document like an employment agreement , that contains IP assignment clauses .
• Employment agreement When an employee creates intellectual property in the course of their employment, an employment agreement should include provisions that assign ownership of the created IP to the employer.

Each of these methods are used in different scenarios with different purposes. Whenever you are planning to assignment intellectual property rights, always consult with an attorney to determine which method is right for you.

Should I Hire a Lawyer to Review an IP Assignment Agreement?

Yes. Even though it is not legally required for a lawyer to draft and review an IP assignment agreement, it is highly recommended to have a legal professional create or at least review this contract.

Hiring a lawyer to review your contract provides the following benefits:

• Legal expertise Lawyers who specialize in intellectual property will understand assignment contracts and the legal implications of IP assignment. Your lawyer can identify potential weaknesses in the agreement that non-legal professionals might overlook.
• Customization Every intellectual property assignment agreement will be different depending on the type of IP and the needs of the parties. A lawyer can tailor the agreement to suit the goals of the parties involved.
• Risk mitigation A lawyer's review helps identify and address potential legal risks, protecting your interests and reducing the likelihood of disputes.
• Advocacy If certain terms need to be revised, a lawyer can negotiate more favorable terms on your behalf.
• Confidence in the contract Knowing that a legal professional has thoroughly reviewed the agreement can provide you with confidence and peace of mind.

An IP assignment agreement can have significant legal and financial implications for the assignor and assignee. Any mistakes could lead to disputes between the parties or even an infringement lawsuit.

When you hire a lawyer to review the IP assignment agreement, the lawyer will ensure that the contract is fair, follows all applicable laws in the jurisdiction, and will be legally enforceable if a dispute arises.

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This intellectual property agreement  is between , an individual a(n) (the " Assignor ") and  , an individual a(n) (the " Assignee ").

The Assignor has full interest in the intellectual property listed in Exhibit A and described in section 1 below.

The Assignor wishes to transfer to the Assignee, and the Assignee wishes to purchase and receive from the Assignor, all of its interest in the Intellectual Property.

The parties therefore agree as follows:

1. ASSIGNMENT OF INTELLECTUAL PROPERTY.

The Assignor assigns to the Assignee, and the Assignee accepts the assignment of, all of the Assignor's interest in the following in the United States and its territories and throughout the world:

• (a) the intellectual property rights related to the intellectual property listed in Exhibit A ;
• (b) all precursors, portions, and works in progress with respect to that intellectual property and all inventions, works of authorship, mask works, technology, information, know-how, materials, and tools relating to those or to the development, support, or maintenance of those;
• (c) all copyrights, patent rights, trade dress, trade names, business names, other indicia of origin, trade secret rights, trademark rights, mask works rights, and all other intellectual property rights and all business, contract rights, and goodwill in, incorporated, or embodied in, used to develop, or related to any of those; and
• (d) the registrations and applications for registrations of the foregoing (collectively, the" Intellectual Property ").

2. PURCHASE PRICE.

The Assignee shall pay the Assignor a flat fee of $ as full payment for all rights granted under this agreement. The Assignee shall complete this payment no later than .

3. RECORDATION.  

In order to record this assignment with all relevant government agencies, within hours of the effective date of this assignment, the parties shall sign the form of intellectual property assignment agreement attached as Exhibit B . The is solely responsible for filing the assignment and paying any associated fees of the transfer.

4. NO EARLY ASSIGNMENT.

The Assignee shall not assign or otherwise encumber its interest in the Intellectual Property or any associated registrations until it has paid to the Assignor the full consideration provided for in this assignment. Any assignment or encumbrance contrary to this provision shall be void.

5. ASSIGNOR'S REPRESENTATIONS.

The Assignor hereby represents and warrants to the Assignee that it:

• (a) is the sole owner of all interest in the Intellectual Property;
• (b) has not transferred, exclusively licensed, or encumbered any Intellectual Property or agreed to do so;
• (c) is not aware of any violation, infringement, or misappropriation of any third party's rights (or any claim of those) by the Intellectual Property;
• (d) is not aware of any third-party consents, assignments, or licenses that are necessary to perform under this assignment;
• (e) was not acting within the scope of employment of any third party when conceiving, creating, or otherwise performing any activity with respect to any item of Intellectual Property.

The Assignor shall immediately notify the Assignee in writing if any facts or circumstances arise that would make any of the representations in this assignment inaccurate.

6. INDEMNIFICATION. The Assignor shall indemnify the Assignee against:

• (a) any claim by a third party that the Intellectual Property or its use, manufacture, sale, distribution, or reproduction infringes on or misappropriates any copyrights, trade secrets, patents, or other intellectual property;
• (b) any claim by a third party that this assignment conflicts with, violates, or breaches any contract, assignment, license, sublicense, security interest, encumbrance, or other obligation to which the Assignor is a party or of which it has knowledge;
• (c) any claim relating to any past, present, or future use, licensing, sublicensing, distribution, marketing, disclosure, or commercialization of any of the Intellectual Property by the Assignor; and
• (i) the Assignee promptly notifies the Assignor of that claim;
• (ii) the Assignor controls the defense and settlement of that claim;
• (iii) the Assignee fully cooperates with the Assignor in connection with its defense and settlement of that claim; and
• (iv) the Assignee stops all sales, distribution, and public use of the infringing Intellectual Property, if requested by the Assignor.
• (i) obtain the right for the Assignee to continue to use the infringing Intellectual Property;
• (ii) modify the infringing Intellectual Property to eliminate the infringement;
• (iii) provide substitute noninfringing intellectual property to the Assignee pursuant to this assignment; or
• (iv) refund to the Assignee the amount paid under this assignment for the infringing Intellectual Property.
• (c) No Other Obligations. The Assignor shall have no other obligations or liability if infringement occurs, and shall have no other obligation of indemnification or to defend relating to infringement. The Assignor shall not be liable for any costs or expenses incurred without its prior written authorization and shall have no obligation of indemnification or any liability if the infringement is based on (i) any modified form of the Intellectual Property not made by the Assignor, (ii) any finding or ruling after the effective date of this assignment, or (iii) the laws of any country other than the United States of America or its states.

7. GOVERNING LAW.

• (a) Choice of Law. The laws of the state of  govern this agreement (without giving effect to its conflicts of law principles).
• (b) Choice of Forum. Both parties consent to the personal jurisdiction of the state and federal courts in County, .

8. AMENDMENTS.

No amendment to this assignment will be effective unless it is in writing and signed by a party or its authorized representative.

9. ASSIGNMENT AND DELEGATION.

• (a) No Assignment. Neither party may assign any of its rights under this assignment, except with the prior written consent of the other party. All voluntary assignments of rights are limited by this subsection.
• (b) No Delegation. Neither party may delegate any performance under this assignment, except with the prior written consent of the other party.
• (c) Enforceability of an Assignment or Delegation. If a purported assignment or purported delegation is made in violation of this section, it is void.

10. COUNTERPARTS; ELECTRONIC SIGNATURES.

• (a) Counterparts. The parties may execute this assignment in any number of counterparts, each of which is an original but all of which constitute one and the same instrument.
• (b) Electronic Signatures. This assignment, agreements ancillary to this assignment, and related documents entered into in connection with this assignment are signed when a party's signature is delivered by facsimile, email, or other electronic medium. These signatures must be treated in all respects as having the same force and effect as original signatures.

11. SEVERABILITY.

If any one or more of the provisions contained in this assignment is, for any reason, held to be invalid, illegal, or unenforceable in any respect, that invalidity, illegality, or unenforceability will not affect any other provisions of this assignment, but this assignment will be construed as if those invalid, illegal, or unenforceable provisions had never been contained in it, unless the deletion of those provisions would result in such a material change so as to cause completion of the transactions contemplated by this assignment to be unreasonable.

12. NOTICES.

• (a) Writing; Permitted Delivery Methods. Each party giving or making any notice, request, demand, or other communication required or permitted by this agreement shall give that notice in writing and use one of the following types of delivery, each of which is a writing for purposes of this agreement: personal delivery, mail (registered or certified mail, postage prepaid, return-receipt requested), nationally recognized overnight courier (fees prepaid), facsimile, or email.
• (b) Addresses. A party shall address notices under this section to a party at the following addresses:
• If to the Assignor: 

• If to the Assignee: 
• (c) Effectiveness. A notice is effective only if the party giving notice complies with subsections (a) and (b) and if the recipient receives the notice.

13. WAIVER.

No waiver of a breach, failure of any condition, or any right or remedy contained in or granted by the provisions of this assignment will be effective unless it is in writing and signed by the party waiving the breach, failure, right, or remedy. No waiver of any breach, failure, right, or remedy will be deemed a waiver of any other breach, failure, right, or remedy, whether or not similar, and no waiver will constitute a continuing waiver, unless the writing so specifies.

14. ENTIRE AGREEMENT.

This assignment constitutes the final agreement of the parties. It is the complete and exclusive expression of the parties' agreement about the subject matter of this assignment. All prior and contemporaneous communications, negotiations, and agreements between the parties relating to the subject matter of this assignment are expressly merged into and superseded by this assignment. The provisions of this assignment may not be explained, supplemented, or qualified by evidence of trade usage or a prior course of dealings. Neither party was induced to enter this assignment by, and neither party is relying on, any statement, representation, warranty, or agreement of the other party except those set forth expressly in this assignment. Except as set forth expressly in this assignment, there are no conditions precedent to this assignment's effectiveness.

15. HEADINGS.

The descriptive headings of the sections and subsections of this assignment are for convenience only, and do not affect this assignment's construction or interpretation.

16. EFFECTIVENESS.

This assignment will become effective when all parties have signed it. The date this assignment is signed by the last party to sign it (as indicated by the date associated with that party's signature) will be deemed the date of this assignment.

17. NECESSARY ACTS; FURTHER ASSURANCES.

Each party shall use all reasonable efforts to take, or cause to betaken, all actions necessary or desirable to consummate and make effective the transactions this assignment contemplates or to evidence or carry out the intent and purposes of this assignment.

[SIGNATURE PAGE FOLLOWS]

Each party is signing this agreement on the date stated opposite that party's signature. 

[PAGE BREAK HERE] EXHIBIT A LIST OF INTELLECTUAL PROPERTY

[PAGE BREAK HERE] EXHIBIT B FORM OF RECORDABLE INTELLECTUAL PROPERTY ASSIGNMENT For good and valuable consideration, the receipt of which is hereby acknowledged, an individual a(n) (the " Assignor ") hereby assigns to an individual a(n) (the " Assignee ") all of the Assignor's interest in the Intellectual Property identified in Attachment A to this assignment, and the Assignee accepts this assignment.

Each party is signing this agreement on the date stated opposite that party's signature.

[PAGE BREAK HERE]

ATTACHMENT A INTELLECTUAL PROPERTY

Free Intellectual Property Assignment Agreement Template

How-to guides, articles, and any other content appearing on this page are for informational purposes only, do not constitute legal advice, and are no substitute for the advice of an attorney.

Intellectual property assignment agreement: How-to guide

In the dynamic realm of commerce and innovation, the notion of property extends far beyond physical boundaries. Just as one might transfer ownership of a house or a car, the exchange of intellectual property (IP) rights is a critical component of modern business transactions. For instance, if you're launching a startup, acquiring product rights, or even purchasing an entire company, in each scenario, the seamless transfer of intellectual property ownership is essential for ensuring a smooth transition and protecting your interests.

So what constitutes intellectual property? Intellectual property encompasses creations of the mind, such as inventions, software, and hardware programs, literary and artistic works, designs, symbols, names, and images. As businesses grow and evolve, the need to manage and protect these valuable assets becomes increasingly important. One crucial aspect of managing intellectual property is through intellectual property assignment agreement, otherwise known as IP assignment agreement. These agreements facilitate the transfer of IP rights from one part to another.

In this article, we’ll explore the nuances of intellectual property assignment agreements, including their definitions, benefits, types, and considerations.

What is an intellectual property assignment agreement?

An intellectual property assignment agreement, also known as an IP assignment agreement, is a written contract that transfers intellectual property rights from one party (the assignor) to another (the assignee). Intellectual property covers a broad spectrum of intangible assets, including patents, copyrights, trademarks, trade secrets, and more.

For instance, a software developer might have created a groundbreaking algorithm while employed at the company. Through an IP assignment agreement, the developer transfers the rights to this algorithm to the employer, ensuring that the company has exclusive ownership and control over its use and commercialization.

Benefits of IP assignment agreement

IP assignment agreements are crucial in a company’s business and provide multiple benefits for the assignor and assignee.

Clear ownership

By executing an IP assignment agreement, the assignor unequivocally transfers all rights and interests in the intellectual property to the assignee. This clarity of ownership and proprietary rights helps to avoid disputes and potential litigation over the ownership of the IP in the future.

Legal protection

By formally transferring the IP rights through a written agreement, both parties are legally protected. This protection can be essential in case of any infringement or misuse of intellectual property.

Assured compensation or price guarantee

When transferring IP ownership rights for patents, trademarks, copyrights, etc., the original owner gets compensated by the party buying the ownership. The buyer will also pay the IP owner an agreed-upon price for the IP, which will be paid on the date as decided by the involved parties.

No future obligations

The party selling the IP won’t be responsible for meeting any future obligations. For instance, if there is an existing trademark that requires constant monitoring to know whether the trademark is used by any other competitors, the seller won't bear the charges incurred for  trademark monitoring . The buyer has to bear these and any future trademark maintenance costs.

Commercialization opportunities

Assigning intellectual property rights can enable businesses to commercialize the intellectual property more effectively. This could involve licensing the IP to third parties, selling it outright, or using it as collateral for financing.

Facilitates collaboration

In cases where multiple parties are involved in creating intellectual property, an assignment agreement can facilitate collaboration by clearly defining each party's rights and responsibilities.

Risk mitigation

For businesses acquiring ownership rights to intellectual property, an assignment agreement mitigates the risk of third parties claiming rights to the IP. It provides a legal basis for defending against infringement claims and protects the assignee's investment in the IP.

Enhanced value

Clear ownership of intellectual property assets can enhance the value of a business, especially during mergers, acquisitions, or fundraising activities. Investors and stakeholders are more likely to perceive a business positively when it has secure ownership of valuable IP assets. For example, let’s say your start-up company holds sole intellectual property rights to an automatic house-locking system. When your company gets acquired by another company, the new company will also evaluate the value of the IP owned.

Understanding IP assignment agreements: Considerations for sellers

While intellectual property assignment agreements offer various benefits, as a seller of the IP you need to keep in mind what it entails for you when you sell your IP.

Choosing between an IP assignment and a licensing agreement

In an IP assignment agreement, the seller transfers all ownership rights to the intellectual property for a predetermined fee. Here the seller gets a fair market value for their IP as a one-time payment. However, if they had opted for an  IP licensing arrangement , they could have retained the ownership of their IP while giving certain usage rights to the interested party. For instance, let’s say you have written and composed a song. A music company wants your song under their label. Here you have two options. You can sell your song completely to the music label, where they’ll have the right to use or alter your song as they deem fit. Or you can license your creation for an agreed-upon fee or price and set the terms and conditions for using your song. Here you’re getting paid for your creation while retaining ownership of your creation. Whichever option works best for you can be opted and respective agreements can be drawn. 

Value uncertainty

The value of intellectual property can fluctuate over time due to changes in market demand, technological advancements, or legal developments. Sometimes an intellectual property’s future value can increase tremendously, impacting the fairness of the negotiated price. Hence, while deciding the price of such assets, the seller should calculate the future valuation and decide the price of IP.

Limited future opportunities

Once intellectual property rights are assigned, the assignor may be restricted from using or further developing the intellectual property in the future. This limitation could hinder the assignor's ability to explore new business ventures or pivot their existing strategies.

In conclusion, while an intellectual property assignment agreement offers significant benefits in terms of clarity, protection, and commercialization of intellectual property assets, parties must carefully weigh these advantages against the limitations. Consulting with legal professionals experienced in intellectual property law is essential to navigate these considerations effectively.

What are the types of IP assignment agreements?

Intellectual property assignment agreements are comprehensive in nature, outlining the terms and conditions under which the transfer of IP ownership occurs. Here's an overview of the types of IP assignment agreements:

Patent assignment agreement or assignment of patents

A  patent assignment agreement  is a written agreement whereby the owner of a patent transfers or assigns their ownership rights to the other party. This agreement ensures that the assignee gains full legal rights to the patent, including the right to exclude others from making, using, or selling the patented invention, innovations, and processes. Patent assignment agreements typically include details about the patented invention, including patent numbers, descriptions, and any related rights or obligations.

Copyright assignment agreement or assignment of copyrights

Copyright assignment agreements  transfer ownership of creative works, such as literary works, music, art, and other creative expressions. By signing a copyright assignment agreement, the creator relinquishes their rights to reproduce, distribute, and display the copyrighted work to the assignee.

Trademark assignment agreement or assignment of trademarks

Trademark assignment agreement s  transfer ownership of trademarks, which are used to identify and distinguish goods or services in the marketplace. Through this agreement, the assignor relinquishes their exclusive rights to use the trademark in commerce, allowing the assignee to use and enforce the mark for their business or products.

Trade secret assignment agreement or assignment of trade secrets

Trade secret assignment agreements are used to transfer ownership of confidential information or trade secrets from one party to another. These agreements outline the specific trade secrets being transferred and impose obligations of confidentiality on the assignee to protect the secrecy of the information.

By signing such an agreement, the assignee gains the rights to use and protect the trade secrets for their own benefit. It can be any proprietary information like formulas, processes, customer lists, and business strategies. These agreements typically include provisions to maintain confidentiality and prevent unauthorized disclosure or use of trade secrets.

Design assignment agreement or assignment of design

An assignment of design agreement involves the transfer of ownership rights related to industrial designs or product designs. It ensures that the assignee gains exclusive rights to reproduce, distribute, and modify the design according to their business needs. This agreement is crucial for companies involved in product development and manufacturing.

Employee or contractor IP assignment agreement

These agreements transfer ownership of intellectual property created by employees or contractors during their employment or engagement. They are essential for employers to secure ownership of IP developed by their personnel. They often include provisions related to confidentiality, non-competition, and non-disclosure, which are mostly included in an employment agreement. Sometimes, employers even ask employees to sign separate non-disclosure agreements whenever an employee comes up with an invention. 

Assignment of IP in a joint venture 

In cases where multiple parties jointly create intellectual property, a joint ownership agreement may establish each party's rights and responsibilities. These agreements detail the terms of joint ownership, including each party's share of the IP, decision-making authority, and rights to exploit the IP.

It's essential to choose the appropriate type of IP assignment agreement based on the specific intellectual property rights being transferred and the circumstances of the transaction. Consulting with legal professionals knowledgeable in intellectual property law can help ensure that the agreement adequately protects the interests of all parties involved.

Who uses intellectual property assignment agreements?

IP assignment agreements are utilized across a spectrum of industries and scenarios. These agreements are crucial tools for businesses and individuals seeking to define and transfer intellectual property rights.

Corporations and businesses

Employment agreement : Companies frequently incorporate IP assignment clauses into their employment contracts. This ensures that any intellectual property created by employees during the course of their employment is automatically assigned to the company.

Consulting agreement : Similar to employment agreements, consulting contracts may include provisions requiring consultants to transfer any intellectual property they develop while working for the company.

Transactions contemplated : In mergers, acquisitions, or other business transactions, IP assignment agreements are employed to transfer ownership of intellectual property assets between parties.

Joint ventures : Partners in joint ventures often use these agreements to clarify ownership rights and facilitate the sharing or licensing of intellectual property developed during the collaboration.

Individuals and inventors

Prior inventions : An individual with a prior invention may use IP assignment agreements to transfer ownership rights to a new employer or business partner.

Consultants and contractors : Freelancers, consultants, and independent contractors may be required to sign an IP or invention assignment agreement as part of their contractual arrangement with clients.

Startups : Startup founders commonly use these agreements to consolidate ownership of intellectual property created before or during the company's establishment.

In essence, assignment agreements are utilized by parties across various sectors and contexts to facilitate the transfer of valuable intellectual property rights, ensuring legal protection and compliance while fostering innovation and business growth.

Key provisions of an intellectual property assignment agreement

Introduction.

Begin the agreement by formally introducing the parties involved to the agreement. In an intellectual property assignment agreement, the party selling the IP is called the “assignor,” and the other party who buys it is called the “assignee.” Here, along with providing the details of the intellectual property, the assignor explicitly agrees to transfer intellectual property rights to the assignee according to the agreed-upon terms of the agreement.

Assignment of IP

This section specifies the intellectual property being transferred. It identifies the specific patents, trademarks, copyrights, trade secrets, or other intellectual property referenced in the agreement. Additionally, it outlines the scope of the transfer and any limitations on the assigned IP rights.

Purchase price

The agreement details any monetary compensation involved in the transfer of intellectual property rights. In this section, clearly outline the payment terms of the agreement. Detail whether the parties hereto agree to pay the assignor as a lump sum or in installments. If the payment is made in installments, you must also provide the schedule for such payment.

Recordation

To formalize the transfer of intellectual property rights, recordation with relevant authorities may be necessary. This provision addresses the requirement and process for recording the assignment with the appropriate governmental authority, ensuring compliance with legal formalities.

No early assignment

This clause states that the assignment of IP rights cannot occur before certain conditions are met, such as before the completion of a project or the fulfillment of payment obligations. This section prevents premature transfers of IP.

Assignor’s representations

In this part, the assignor provides assurance that they have the sole right to the IP created and it hasn’t been licensed to any third-parties. They also affirm that they have the legal authority to transfer ownership of the IP and there are no undisclosed encumbrances or infringements.

Indemnification

This provision outlines the parties' obligations to indemnify each other against any losses, damages, or liabilities arising from a breach of the agreement or the assertion of third-party claims related to the transferred IP.

Governing law

This section specifies the jurisdiction whose laws will govern and interpret the agreement. It provides clarity in the event of legal disputes.

This clause outlines the procedures for making changes or modifications to the intellectual property assignment agreement. To make any changes pertaining to the terms of the agreement requires written consent from both parties.

Assignment and delegation

This provision addresses the transferability of rights and obligations under the IP assignment agreement. They stipulate whether parties can assign their rights or delegate their duties to third parties.

Counterparts; electronic signatures

This section permits the IP assignment agreement to be executed in multiple counterparts, facilitating convenience in signing. It also recognizes the legal validity of electronic signatures, ensuring compliance with modern technological practices.

Severability

The severability clause states that if any provision of the agreement is found to be invalid or unenforceable, the remaining provisions will remain in full force and effect. This ensures that the invalidity of one provision does not invalidate the entire agreement.

This provision details the methods and addresses for official communication between the parties regarding the intellectual property assignment agreement. They ensure that important correspondence is properly delivered and acknowledged.

Waiver provision addresses instances where a party chooses not to enforce its rights under the agreement. For instance, if certain provisions are waived off on a one-time basis regarding the agreement, this doesn’t mean that the provision is waived for the entire term of the agreement. Take the case where the assignee is paying for the IP in installments. If the assignee is not able to pay the installment for a month, then the assignor can waive that default and continue the agreement upon prior written consent.

Entire agreement

This part of an intellectual property assignment agreement explains that the parties agree to the specific terms and conditions mentioned in the agreement. Any verbal negotiations or other terms that are even stated via email or otherwise are not part of this agreement.

This section states that the headings used in the agreement are for convenience only and do not affect the interpretation of the provisions.

Effectiveness

The effectiveness provision specifies the date on which the agreement becomes effective. This ensures clarity regarding when the rights and obligations outlined in the agreement take effect.

Necessary acts; further assurances

Requires the parties to take any additional actions necessary to carry out the terms of the agreement fully. This may include signing additional documents or cooperating with each other as needed.

How does an online template facilitate drafting intellectual property assignment agreements?

There are various advantages of using an online template for IP such as.

Simplified drafting process

Online templates streamline the drafting process of IP assignment agreements. By providing a structured framework, these templates guide users through the essential elements required for such agreements. Users can efficiently input pertinent details specific to their arrangement, ensuring comprehensive coverage of the subject matter assigned.

Ease of customization

Some  online template providers, like LegalZoom , allow you to easily customize the templates to suit specific circumstances. With editing options available, users can modify clauses and provisions to reflect their agreed-upon terms and conditions of the arrangement

Clarity and consistency

These templates offer clear and standardized language, enhancing understanding and minimizing ambiguity. Consistent formatting and terminology throughout the agreement contribute to its readability and effectiveness.

Time and cost efficiency

Utilizing an online template can minimize the need for extensive document research and costly legal consultations. It allows parties to draft a comprehensive IP assignment agreement efficiently and affordably, saving valuable time and resources.

Accessibility and convenience

Online templates are readily accessible from anywhere with an internet connection, enabling parties to initiate and complete the drafting process conveniently. This accessibility promotes collaboration and facilitates the timely execution of agreements.

As you can see, using online templates provides numerous benefits. Since there are a multitude of templates available online, choosing the right template is key. To streamline this process, LegalZoom offers a comprehensive intellectual property assignment agreement template that is simple and easy to use. Just answer the guided questions, complete the form, and download the document for free.

Frequently asked questions

What's an intellectual property assignment agreement.

When your business needs to sell or buy intangible assets, use an intellectual property assignment agreement to protect both parties. It enables the transfer of ownership of intangible items legally. Intellectual property includes everything from patents to trademarks to software and more.

What key details are required to complete your assignment agreement?

Here's the information you'll need to complete your intellectual property assignment agreement:

• Who owns the intellectual property : Keep the information of the assignor ready while drafting your agreements
• Who's buying the intellectual property : Have the name and contact details of the assignee ready
• How much it costs : Know what the buyer pays for the intellectual property

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Simplify the process of transferring patent rights for both buyers and sellers with a patent assignment agreement. Document the ownership transfer clearly and efficiently.

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Ensure fair use of intellectual property with a trademark license agreement. Outline the terms of usage and compensation.

What are IP Assignment Agreements?

For the high-growth startups we represent (and into which our venture capital clients invest), intellectual property (IP) is typically the core asset driving the company’s value. Ensuring that the company’s IP is properly owned and protected can therefore be the difference between success and failure. It is somewhat surprising then, how often founders fail to ensure that their companies do, in fact, own this critical property. Founders who eschew legal representation in favor of low-cost, automated options tend to fall into this trap most often. Most automated or semi-automated providers of startup legal documentation fail to provide even a basic IP assignment and confidentiality agreement—an essential document that all company personnel (founders included) must sign to ensure that IP is both validly assigned to the Company and protected from disclosure. When used with employees and consultants, IP assignment and confidentiality clauses are typically bundled into a single contract, often called a “Proprietary Information and Inventions Assignment Agreement” or a “Confidential Information and Inventions Assignment Agreement” (though there are many names that can be used here).

What are IP assignment agreements?

IP assignment agreements are contracts between a business and its personnel that transfer ownership of IP created by the personnel during their employment or engagement with the business. IP can include patents, trademarks, copyrights, and trade secrets. The agreement ensures that the business retains ownership of any IP created by the personnel, even after they leave the business. Even if your personnel are not involved in creating IP, it’s advisable to have these agreements in place—you never know where the next great idea might come from, and in any case, it’s easier to get this agreement signed than it is to explain to an investor or acquirer why you didn’t. Without an IP assignment agreement, personnel may be able to claim personal ownership of the IP they created, which can be deadly to a business that relies on IP for its value. If you are missing these agreements, investors and acquirers will notice and it can cause your financing or acquisition to fall through, particularly if the personnel who failed to sign have left or are otherwise unwilling to sign.

What are confidentiality agreements?

Confidentiality agreements, also known as non-disclosure agreements (NDAs), are contracts between a business and its personnel that prevent the personnel from disclosing confidential information about the business. Confidential information can include trade secrets, customer information, financial information, and any other information that is not publicly available. Most founders innately understand the importance of maintaining confidentiality, so rarely fail to have an NDA in place with individuals to whom they provide sensitive information. It should be noted, though, that having confidentiality agreements with your employees and consultants has become particularly important in recent years, as states and the federal government have sought to restrict the use of noncompetition agreements. Having a strong confidentiality agreement can be the key to ensuring that your ex-employees don’t take valuable information to your competitors.

While confidentiality obligations are self-explanatory and a “must-have”, you must also remember that an NDA does not necessarily include an IP assignment agreement. NDAs, particularly those provided by automated/semi-automated document providers, are often designed for use solely during preliminary conversations with potential commercial or collaboration partners. In that context, NDAs do not (and likely should not) have any clauses providing for the transfer of IP ownership. It is therefore critical that you do not simply ask your employees and contractors to sign a “standard” NDA—yes, that agreement will likely prevent those folks from sharing your sensitive information, but if you’re paying them to create IP for you, you’ll also want language that ensures that your company actually owns the work product they create.

Please remember, have your personnel (employees, contractors and even advisers) sign an IP assignment and confidentiality agreement, ideally on the day that individual first starts working for you. File that agreement away somewhere safe (ideally with your lawyer). These agreements ensure that the business retains ownership of its IP and that confidential information is kept secret. If you need help drafting IP assignment and confidentiality agreements, consult with a qualified attorney with experience in representing high-growth startups (believe it or not, there’s “magic language” needed to ensure these agreements work properly, and even a Supreme Court case about it).

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Commercial Templates

Intellectual Property Assignment Agreement

Nov 2, 2022

An intellectual property assignment agreement is an agreement to transfer intellectual property from one person or company to another.

What is an Intellectual Property Assignment Agreement?

An intellectual property assignment agreement is an agreement to transfer intellectual property from one person or company to another. The agreement may also be referred to as an intellectual property transfer agreement, an IP assignment agreement or an IP transfer agreement.

When should you use an Intellectual Property Assignment Agreement?

An intellectual property assignment agreement should be used whenever transferring the rights in intellectual property ( IP ). There are a number of situations where you may need to do this. The most common for SMEs is where an individual has done work for a company as a consultant without using a consultancy agreement with the result that the consultant and not the company, owns the IP in the work. It is also necessary to transfer IP where founders create IP before incorporating or being employed by a company and, as a result, title to the IP vests in the founder.  

Why is an Intellectual Property Assignment Agreement important and why should you use it?

Investors in early stage companies will often require the company and key employees to give warranties confirming that the company owns all material IP used by the company. Any IP not owned by the company will need to be transferred to the company before the investment is completed. Failing to transfer the IP can materially impact the valuation of the company or, in extreme cases, lead investors to pull out of the transaction.

It is necessary to use a written agreement for an assignment of certain types of IP (such as copyright) to be effective. Further, it is important to ensure that the agreement is an enforceable contract. For the contract to be enforceable there must be some form of consideration paid in exchange for the IP. The amount of consideration payable will depend on the situation in which the IP is being transferred. If a consultant or founder is transferring IP that should have been owned by the company, the consideration should be a nominal amount, e.g. £1, which is deemed to have been received by the assignor (note that some form of consideration is required for the agreement to be an enforceable contract). The IP can, however, be transferred for valuable consideration or as part of an asset sale.

An IP assignment will also include warranties to confirm that the assignor is the owner of the intellectual property being transferred and that the assignor has the right to transfer the intellectual property. Transferring intellectual property without these assurances means that your company will have limited or no recourse should it transpire that the assignor did not own or have the right to transfer the intellectual property.

What are the common pitfalls of an Intellectual Property Assignment Agreement?

Where possible, it is important to clearly describe the IP being transferred. IP by its nature is not physical so failing to accurately describe the IP can result in disputes about what has been transferred. 

Further, there are several different types of IP (copyright, patents, trade marks and designs). Certain IP rights can also be registered. Depending on what is being transferred it may be necessary to take additional steps to perfect the transfer (for example notifying the appropriate register of the transfer). The agreement should include a requirement that the assignor takes the necessary steps to perfect the transfer and specify which party is required to pay any associated costs (such as registration fees).

In addition where copyright is being transferred, the assignor should also ensure that the assignor waives their moral rights (such as the right to attribution) in respect of the copyrighted work.

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How to Address Intellectual Property Issues in Employment Contracts

When drafting employment contracts, it is vital to address intellectual property (IP) issues to prevent disputes and protect sensitive information. Clearly define IP rights, including patents, copyrights, and trademarks, to establish ownership and control. Include provisions for confidentiality and non-disclosure to safeguard trade secrets and business strategies. Specify IP assignment and disclosure requirements to secure the employer's rights to work-related creations. Restrictive covenants and non-competes can further protect IP interests. Implementing these measures will help prevent IP misuse and financial losses. A thorough understanding of these factors is key to crafting effective employment contracts that balance creative freedom with IP protection. Further consideration of these nuances can provide additional insight into this complex issue.

Table of Contents

Defining Intellectual Property Rights

Intellectual property rights refer to the legal entitlements that protect creations of the mind, including inventions, literary and artistic works, and symbols, names, images, and logos used in commerce. These rights grant exclusive privileges to creators and innovators, enabling them to control the use and exploitation of their intellectual property. To effectively manage IP, it is crucial to establish clear IP boundaries, which define the scope of protection and the rights of stakeholders. Property classification is a critical aspect of IP management, as it determines the type of protection accorded to a particular creation. For instance, patents protect inventions, copyrights protect literary and artistic works, and trademarks protect symbols, names, and logos. A thorough understanding of IP rights and classification is imperative for employers to confirm that their employment contracts accurately reflect the IP interests of the company and its employees. By establishing clear IP boundaries and classification, employers can mitigate the risk of IP disputes and protect their valuable creations.

Protecting Confidential Information

An organization's confidential information, including trade secrets, business strategies, and sensitive data, constitutes a vital component of its intellectual property portfolio, requiring vigilant protection to prevent unauthorized disclosure or misuse. To safeguard this critical asset, employers should incorporate specific provisions in employment contracts to prevent employees from divulging or exploiting confidential information . This includes restricting access to sensitive data, implementing data encryption protocols, and ensuring that all confidential information is clearly labeled and stored securely. Employers should also establish clear policies and procedures for handling confidential information, including reporting and incident response protocols. Additionally, non-disclosure agreements (NDAs) can be used to further reinforce the obligation of confidentiality. By taking these measures, organizations can effectively protect their trade secrets and sensitive data from unauthorized access or misuse, thereby preserving their competitive advantage and intellectual property portfolio.

Ownership of Work-Related Creations

When it comes to work-related creations, the question of ownership is a critical one. In general, employers have a legitimate claim to intellectual property developed by employees within the scope of their employment, but the boundaries of this ownership can be murky. As we explore the complexities of ownership, we must consider what belongs to the employer, how employee personal projects are treated, and the implications of creations made outside of work hours.

What Belongs to Employer

Most employers retain ownership of work-related creations, including inventions, software, and literary works, developed by employees during their tenure or using company resources. This is a vital aspect of intellectual property rights in employment contracts, as it safeguards that the employer's investment in the employee's work is protected.

To clarify the scope of employer ownership, consider the following:

• Company Secrets : Employers have a vested interest in protecting confidential information and trade secrets developed by employees during their employment.
• Work-Related Inventions : Employers typically retain ownership of inventions created by employees using company resources, including equipment, facilities, and time.
• Software and Digital Creations : Employers own software, apps, and digital content developed by employees as part of their job duties.
• Literary Works : Employers retain ownership of written works, such as reports, articles, and documentation, created by employees during their employment.

Employee's Personal Projects

While employers retain ownership of work-related creations, a significant exception arises when employees develop personal projects outside the scope of their job duties, raising crucial questions about the ownership of work-related creations. This exception is particularly relevant in today's era of side hustles, where employees often pursue creative endeavors beyond their primary employment. In such cases, determining ownership of work-related creations can be complex.

To address this issue, employment contracts should explicitly outline the boundaries of creative freedom and intellectual property ownership. Employers may consider including clauses that define what constitutes "work-related creations" and specify the scope of job duties. This clarity can help prevent disputes over ownership and ensure that employees understand their rights and responsibilities.

Ultimately, striking a balance between employer ownership and employee creative freedom is essential. By establishing clear guidelines and expectations, employers can foster a culture of innovation while protecting their intellectual property interests. By doing so, employees can pursue personal projects without compromising their primary employment obligations, and employers can maintain control over work-related creations.

Creations Made Outside

In the context of work-related creations, the boundaries of ownership become increasingly nuanced when employees develop intellectual property outside the physical confines of the workplace or beyond the standard working hours. This raises questions about who owns the rights to such creations. Employers may argue that any work-related creations, regardless of the location or time, belong to the company. However, employees may counter that their personal ventures and side hustles are separate from their employment.

To clarify ownership, employment contracts should explicitly address the following scenarios:

• Work-related activities during personal time : Are employees allowed to work on company-related projects during their personal time, and do they retain ownership of any resulting IP?
• Personal projects using company resources : Can employees use company resources, such as equipment or software, for personal projects, and do they retain ownership of any resulting IP?
• Creations inspired by company work : If an employee develops a creation inspired by their company work, but outside of work hours, who owns the IP?
• Disclosure of personal ventures : Are employees required to disclose their personal ventures and side hustles to the employer, and how does this impact IP ownership?

IP Assignment and Disclosure

When addressing intellectual property (IP) issues, it is crucial to examine the critical aspects of IP assignment and disclosure. Central to this discussion are the matters of ownership of IP, disclosure requirements, and assignment of rights, which can profoundly impact the protection and utilization of intellectual property. A thorough understanding of these points is vital to navigate the complexities of IP management effectively.

Ownership of IP

Ownership of intellectual property (IP) is a critical aspect of innovation, as it determines who has the legal right to exploit, protect, and benefit from an intangible asset. In the context of employment contracts, IP ownership is particularly vital, as it can impact the employer's ability to leverage and commercialize employee-created IP.

In cases of collaborative creations, IP ownership can become complex, and disputes may arise over who owns the IP rights. To mitigate this risk, employment contracts should clearly outline the ownership of IP created during the course of employment. This can help prevent IP infringement claims and safeguard that the employer has the necessary rights to develop and monetize the IP.

Key considerations for IP ownership in employment contracts include:

• Default ownership : Determine who owns the IP rights by default, i.e., the employer or the employee.
• Assignment of IP : Specify whether the employee transfers their IP rights to the employer.
• Scope of IP ownership : Define the scope of IP ownership, including the type of IP and the specific rights granted.
• Exceptions and limitations : Identify any exceptions or limitations to IP ownership, such as employee personal projects or pre-existing IP.

Disclosure Requirements

Beyond outlining IP ownership, employment contracts must also address disclosure requirements, which guarantee that employees assign and disclose IP rights to the employer in a timely and thorough manner. This includes requiring employees to promptly disclose any inventions, ideas, or concepts developed during the course of their employment, as well as any improvements to existing IP. The contract should specify the format and frequency of these disclosures, verifying that the employer can identify and protect valuable IP in a timely manner.

Disclosure requirements are particularly vital for protecting trade secrets, as unauthorized disclosure can result in the loss of confidentiality and subsequent loss of IP rights. Similarly, prompt disclosure of patent applications is imperative to guarantee that the employer can file for patent protection before the invention becomes public knowledge. By including clear disclosure requirements in the employment contract, employers can safeguard that IP rights are properly assigned and protected, minimizing the risk of IP theft or unauthorized use.

Assignment of Rights

The assignment of rights provision in an employment contract confirms that intellectual property created by employees during the course of their employment is legally transferred to the employer, thereby vesting the employer with exclusive rights to use, exploit, and protect the IP. This provision is vital in securing that the employer has control over the intellectual property developed by its employees.

To provide thorough assignment of rights, employers should consider the following key aspects:

• Scope of assignment : Clearly define the scope of intellectual property to be assigned, including future inventions and improvements.
• Exclusive license : Grant the employer an exclusive license to use, make, and sell the assigned intellectual property.
• Global jurisdiction : Establish that the assignment of rights is applicable globally, to protect the employer's interests worldwide.
• Survival of assignment : Specify that the assignment of rights persists after the termination of the employment contract, to prevent employees from claiming rights to intellectual property created during their employment.

Restrictive Covenants and Non-Competes

In the domain of intellectual property protection, restrictive covenants and non-competes serve as vital tools for safeguarding trade secrets, proprietary information, and business relationships. These contractual provisions aim to prevent former employees from misappropriating sensitive information or competing with their former employer in a manner that could compromise its intellectual property.

One critical consideration when drafting restrictive covenants and non-competes is enforceability issues. Courts tend to scrutinize these provisions closely, and overly broad or unreasonable restrictions may be deemed unenforceable. To mitigate this risk, employers should verify that the restrictions are carefully tailored to protect legitimate business interests, such as trade secrets or customer relationships. Geographical limitations, for instance, should be reasonable and commensurate with the scope of the employer's business operations. Employers should also be mindful of varying state laws and regulations governing restrictive covenants and non-competes, as these can impact their enforceability. By crafting well-drafted and narrowly tailored provisions, employers can effectively safeguard their intellectual property while minimizing the risk of legal challenges.

Post-Employment IP Obligations

Former employees owe continuing obligations to their former employers to protect intellectual property even after their employment has terminated, underscoring the need for robust post-employment IP obligations. This is particularly vital for trade secrets, which can be highly valuable and sensitive. To safeguard effective protection, employment contracts should clearly outline the obligations of former employees, including:

• Confidentiality agreements : requiring former employees to maintain confidentiality of trade secrets and other confidential information.
• Non-disclosure agreements : prohibiting former employees from disclosing IP-related information to third parties.
• Return of company property : mandating the return of all company property, including documents, devices, and materials containing IP.
• Notification of new employment : requiring former employees to notify their former employer of their new employment, allowing the employer to monitor potential conflicts of interest.

These post-employment IP obligations should be tailored to the specific needs and industry norms of the employer. By including these provisions in employment contracts, employers can safeguard their intellectual property and prevent potential misappropriation by former employees.

Dispute Resolution Mechanisms

Effective management of intellectual property disputes is critical to protecting valuable assets, and a well-structured dispute resolution mechanism can mitigate the risks associated with IP misappropriation. A thorough dispute resolution mechanism should be incorporated into employment contracts to guarantee that any IP-related disputes are resolved efficiently and effectively.

Mediation models can be an effective way to resolve IP disputes, as they provide a neutral and confidential forum for parties to negotiate and settle disputes. Arbitration strategies can also be employed, offering a more formal and binding process for resolving disputes. It is vital to carefully draft arbitration clauses to confirm that they are enforceable and align with the parties' objectives.

When drafting a dispute resolution mechanism, employers should consider the type of IP at issue, the scope of the dispute, and the desired outcome. By incorporating a well-structured dispute resolution mechanism into employment contracts, employers can minimize the risk of IP misappropriation and safeguard that valuable assets are protected. A clear and effective dispute resolution mechanism can also help to prevent costly and time-consuming litigation, ultimately saving resources and preserving business relationships.

Frequently Asked Questions

Can independent contractors retain ip rights to their work?.

Independent contractors generally retain IP rights to their work, as they are not employees, unless explicitly assigned or licensed. This preserves contractor autonomy and creative freedom, allowing them to maintain control over their intellectual property.

How Do IP Laws Vary Between Different Countries and Regions?

IP laws exhibit significant variations across countries and regions, impeding global harmonization, with regional exceptions, such as the European Union's unitary patent system and the United States' distinct approaches to patent and copyright laws, creating complexities.

What Happens to IP Rights When a Company Is Sold or Merged?

In the event of a company sale or merger, IP rights are typically transferred to the acquiring entity through ownership transfers, often as part of a thorough acquisition strategy, ensuring continuity and protection of valuable intellectual assets.

Can Employees Use Company IP for Personal, Non-Commercial Purposes?

Employees may employ company IP for personal, non-commercial purposes under Fair Use doctrine, but must guarantee their personal projects do not compromise confidentiality, conflict with job duties, or infringe on company rights.

Are IP Contracts Enforceable Across International Borders?

In the domain of intellectual property law, enforcing contracts across international borders can be complex, often sparking Border Disputes and jurisdictional conflicts. Global Jurisdiction can be murky, necessitating careful consideration of applicable laws and treaties to facilitate effective IP protection.

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Office of the CIO

Guidelines for data classification.

The purpose of this guideline is to establish a framework for classifying institutional data based on its level of sensitivity, value, and criticality to the university as required by the university's Information Security Policy. Classification of data will aid in determining baseline security controls for the protection of data.

This policy applies to all faculty, staff, students, and third-party agents of the university and any other university affiliate authorized to access institutional data. In particular, this guideline applies to those who are responsible for classifying and protecting institutional data, as defined by Information Security Roles and Responsibilities .

Note : This Guideline applies to all operational and research data.

Definitions

The definitions below are for use within the Guidelines for Data Classification. An affiliate is anyone associated with the university, including students, staff, faculty, emeritus faculty, and any sponsored guests. Most individuals affiliated with the university have an Andrew userID.

Confidential data is a generalized term typically representing data classified as restricted according to the data classification scheme defined in this guideline. This term is often used interchangeably with sensitive data.

A data steward is a senior-level employee of the university who oversees the lifecycle of one or more sets of institutional data. See the   Information Security Roles and Responsibilities   for more information.

Institutional data is defined as all data owned or licensed by the university. 

Non-public information is defined as any information that is classified as private or restricted information according to the data classification scheme defined in this guideline.

Sensitive data is a generalized term typically representing data classified as restricted according to the data classification scheme defined in this guideline. This term is often used interchangeably with confidential data.

Data Classification

Data classification, in the context of information security, is the classification of data based on its level of sensitivity and the impact to the university should that data be disclosed, altered, or destroyed without authorization. Data classification helps determine what baseline security controls are appropriate for safeguarding that data. All institutional data should be classified into one of four sensitivity levels or classifications:

Classification of data should be performed by an appropriate data steward. Data stewards are senior-level university employees who govern the lifecycle of one or more sets of institutional data. See Information Security Roles and Responsibilities for more information on the data steward role and associated responsibilities.

Visit the Data Classification Workflow for a process on how to classify data.

Data Collections

Data stewards may wish to assign a single classification to a collection of data that is common in purpose or function. When classifying a data collection, the most restrictive classification of any of the individual data elements should be used. For example, if a data collection consists of a student's name, CMU email address, and social security number, the data collection should be classified as restricted even though the student's name and CMU email address may be considered public information.

Reclassification

Periodically, it is important to reevaluate the classification of institutional data to ensure the assigned classification is still appropriate based on changes to legal and contractual obligations as well as changes in the use of the data or its value to the university. This evaluation should be conducted by the appropriate data steward. Conducting an evaluation on an annual basis is encouraged; however, the data steward should determine what frequency is most appropriate based on available resources. If a data steward determines that the classification of a certain data set has changed, an analysis of security controls should be performed to determine whether existing controls are consistent with the new classification. If gaps are found in existing security controls, they should be corrected in a timely manner, commensurate with the level of risk presented by the gaps.

Calculating Classification

The goal of information security, as stated in the university's Information Security Policy, is to protect the confidentiality, integrity, and availability of institutional data. Data classification reflects the level of impact to the university if confidentiality, integrity, or availability is compromised.

Unfortunately, there is no perfect quantitative system for calculating the classification of a particular data element. In some situations, the appropriate classification may be more obvious, such as when federal laws require the university to protect certain types of data (e.g., personally identifiable information). If the appropriate classification is not inherently obvious, consider each security objective using the following table as a guide. It is an excerpt from  Federal Information Processing Standards (FIPS) publication 199 , published by the National Institute of Standards and Technology, which discusses the categorization of information and information systems.

As the total potential impact on the university increases from low to high, data classification should become more restrictive, moving from public to restricted . If an appropriate classification is still unclear after considering these points, contact the Information Security Office for assistance.

Appendix A: Predefined Types of Restricted Information

The Information Security Office and the Office of General Counsel have defined several types of Restricted data based on state and federal regulatory requirements. This list does not encompass all types of restricted data. Predefined types of restricted information are defined as follows:

• Data Classification Workflow [pdf]
• Data Classification Workflow [text version]
• Data Stewardship Council
• Information Security Office
• Roles and Responsiblities

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