Road Runner uses Dynamic Host Configuration Protocol (DHCP) to assign IP addresses dynamically. This means that you will not always have the same IP address.

You want to be sure that the IP address you have is a valid one, otherwise you may have problems connecting to the internet. A valid IP address will begin with either "24" or "66." So for instance 24.93.68.64 is a valid IP, but 192.168.0.1 is not.

Macintosh OS9:

1. Select the Control Panel option from the Apple menu. Select the TCP/IP control panel. The TCP/IP control panel will open. Your IP address can be located within the IP Address field.

Windows 95/98/ME:

1. Select Run from the Start menu.
2. Type winipcfg, and click the OK button. A window will display your networking information and current IP address. Make sure that you choose the network adapter from the pull-down menu.

Windows NT/2000/XP:

1. Open a Command Prompt (by selecting Programs, and then MS-DOS Prompt from the Start menu).
2. At the Command Prompt, type ipconfig /all. Your networking information, including your current IP address, is displayed.