How to: Set Up Port Forwarding with Tomato Jul 14, 2009, 06 :01 UTC (0 Talkback[s]) (2468 reads) (Other stories by Aaron Weiss)
"Most of the cases where you need to use port forwarding involve directing incoming requests from the Internet to a particular machine inside your LAN. And in most of these cases, that means you’re running a server inside your LAN, such as a Web server.
"In the case of running a Web server, incoming requests will hit the router asking for port 80. You need the router to forward these requests to the internal IP address of your server."