How do I configure a Static IP Address in Windows and MAC OS X

Computers usually have the ability to grab a Dynamic Host Configuration Protocol (DHCP) address by default. Most networks are set to give out these dynamic IP addresses to any device that gets on the network and says, “I’m here! Give me an IP address so that I can use Google!”

The trouble with DHCP addresses is that they are dynamic. When a DHCP “lease” runs out, the computer or device may grab another available DHCP IP address. Normally this is ok and allows seamless Internet access to any computer; however, sometimes the need arises to statically assign an IP address for remote access, file transfers, or any other number of reasons.

To get a static IP address for your computer, submit a help ticket at cns.utexas.edu/help. Once you receive an IP assignment, follow the instructions below to get the IP Address onto your computer’s network connection.

How to Assign a Static IP Address in Windows:

The following procedure will work for Windows 7, Windows 8 or Windows 10. The first thing we want to do is to open the Network and Sharing Center. You can do that by clicking on the Start button and typing in network and sharing.

open network sharing center

In the Network and Sharing Center window, click on Change adapter settings on the left-hand side.

change adapter settings

This will open the Network Connections window where you will see a list of all physical and virtual network devices. Here you will want to right-click on the network connection that is currently being used to connect the computer to the network and choose Properties. If it’s WiFi, use Wireless Network Connection. If you are connecting via cable, use Ethernet.

network adapter properties

Now click on Internet Protocol Version 4 (TCP/IPv4) to select it and then click onProperties again.

internet protocol ipv4

Finally, this will bring you to the settings screen where you can assign a static IP address.

assign static ip

You’ll select the Use the following IP addressradio button and then type in the IP address, subnet mask and default gateway. By default, when you type in the IP address, it fills out the subnet mask for you. The Default gateway andPreferred DNS server should both be set to the IP address of your router.

I would also check the Validate settings upon exit box to make sure that the new values will work on your network. Click OK and your computer will now have a static IP address assigned to it.

How to Assign a Static IP Address in Mac (OS X):

If you’re using a Mac, you have to go to System Preferences, which is basically the equivalent of Control Panel in Windows. To get there, click on the Apple icon at the top left of the menu bar.

system preferences

Next, click on the Network icon.

system preferences network

This screen is similar to the Network Connections dialog in Windows. You will see a list of network connections on the left. If the connection is green, that means it is active. Click on the connection and then click on theAdvanced button at the bottom right.

network advanced

This will bring up all the advanced settings for the network connection. Click on the TCP/IP tab and you’ll see a dropdown next to Configure IPv4.

manual address os x

In the dropdown, you have several choices: Using DHCPUsing DHCP with manual addressUsing BootPManually and Off. In OS X, you can choose from either DHCP with manual address or Manually. Manually is basically like the default option in Windows where you have to type in all the values yourself. DHCP with manual addresswill allow you to type in an IP address, but will automatically determine the subnet mask and router (default gateway).

dhcp with manual address

Even though it looks fairly complicated, changing the IP address for your computer is a simple task. The harder part is knowing what IP address to use so that you don’t run into any conflicts, but can connect to the network at the same time. If you have any questions, feel free to comment. Enjoy!

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