Abyss doesnt use your router. You need to configure the settings in your router. If you can get to the router console (through the gateway IP, usually, 192.168.1.1, 192.168.0.1 or 192.168.1.0) then you need to edit the port forwarding settings.
Go to
www.portforward.com and look for your router, and then the catagory HTTP or Web Server.