Game Detection/Lan Relay

At my college, we are always playing counter-strike(cs). The problem is that the lan settings make it so that only a person with a laptop can host, and only if they go through the cat-5. This highly limits the times we can play. The only thing I can figure is to set up a relay point that will read the cs server on a home computer, but show up on the school lan. I just don't know how to detect the relay (or cs sever) on the school network, through CS. I do know that CS uses the winstock control.

Can somebody tell me how I would do this?

I realize that this game does have the internet feature, but then it is visible, etc.

So you want a server at home that you can access at school?

Your relay only needs to pass data 1:1 from one side to the other.

Make it listen on the port(s) that CS uses and find a port that can be used to send data to the internet.

Then any data that arrives on the internal CS ports is sent on the open port to your home ip.
The same is done at home.

You may want to make the relays use a TCP connection initiated at school if your schoolnetwork blocks incoming data.