To find your IP address in Windows XP, click start, run and then type (cmd) no parenthesis, in the box. You will directed to a black window (DOS). In the black screen type the following (ipconfig) no parenthesis. If the computer is connected to a router, you have to sign on to the router’s main console. You can reach it ususally by typing in 192.168.1.1 depending on the router. Once inside you will be able to see the IP address.