Internet Protocol (IP) Address

Example: 134.173.91.172

Your computer's IP address is a set of numbers that uniquely identifies it on the Internet. IP addresses are like telephone numbers in that computers use them to communicate with each other over the Internet. Unless you have a "static" IP, your computer's IP address will usually change as time goes by, although those handed out by the Pomona networks usually don't change very often.

IP addresses are sets of four numbers separated by decimal points, (see example). All Pomona IP addresses begin with 134.173.

Checking IP Information in Windows XP

1. Go to Start > My Network Places .
   
2. Click View Network Connections in the left-hand panel.
   
3. Double-click on either Local Area Connection or Wireless Network Connection , depending on which kind of connection you are using.
   
4. Click the Support tab at the top of the dialogue box. Your IP address is displayed here.
   

Checking IP Information in Windows 2000

(Note: This method also works for Windows XP.)

1. Go to Start > Run .
2. Type in cmd and press OK .
3. Type in ipconfig and press Enter .
4. If you need more detailed information, type in ipconfig /all and press Enter .

Checking IP Information in OS X (version 10.2 or higher)

1. In Finder, open the Apple menu and then click on System Preferences .
2. Make sure that Show All is selected at the top left. Then open the Network panel by clicking on it.
   
3. In the second drop-down menu from the top, select either Built-In Ethernet for the wired connection or Airport for the wireless card.
4. Your IP address should be listed in the bottom pane. If not, click on the leftmost button labeled TCP/IP and it should be displayed below.
   

Checking IP Information the Ridiculously Easy Way

If, for whatever reason, you need to check the IP of a computer that has internet connectivity, go to http://www.whatismyip.com. It displays your IP address at the top of the page in big, bold letters, and as the title of the webpage.

Note: If you are using a wired or wireless router, this page will show the address of your router, not your individual computer. If you need the address of your computer, you will need to use one of the above methods to determine it.