[Hellbaby2065]

There are 3 ways it can be done...

1.) Set up TCP and UDP forwarding on port #'s 12201 - 12210 for the IP address of your comp. In order to do this you have to manually set your computer's IP, DNS, and Gateway.

2.) Set up a DMZ to the IP address of your comp. Once again, this requires you manually assign your computer's IP, DNS, and Gateway.
Unfortunately, this method leaves your computer completely exposed to internet hacks, so you might want to download a software firewall like ZoneAlarm or TinyFirewall.

3.) I have heard there is a way to set up "Dynamic Forwarding" using DHCP, but I have not yet tried this.