Right. The procedure for setting up your particular forward depends on your router manufacturer (www.portforward.com). Once you get it set up, do this:
Start End Type IP
2303 2303 UDP 192.168.1.XXX
XXX is from the Internal IP address on your host computer. You find this number on the Support tab of the Local Area Connection Status. For me, this number is 100. But if I turn on my computers in a different sequence, it could be 101, 102, 103, etc. It's important to remember to check this IP address periodically to make sure it hasn't changed. If it has, you need to re-forward to the current Internal IP address.