How to find your current PC and Router's IP address in Windows XP

  1. Click the Windows Start button and then select Run
  2. In the run dialog box, type cmd and click OK.
  3. A black DOS window should appear. Type ipconfig and hit enter.
  4. You should now see your computer's IP address and the Gateway.

The Gateway is your router's IP address.

If you type the Gateway into your web browser you can login to your router and forward the XLink ports. Please follow this tutorial to forward the ports on your router:

Port Forwarding

The Computers current IP is the address you would forward a port to if necessary.