Shoutbox

I have a router that I use here on campus that allows me to be online on my computer and on Xbox Live.

The only way I can get the Xbox to recognize the school's network is to hook the Xbox directly to the ethernet port in the wall.

I'm pretty sure that the Xbox recognizes the router as the LAN I want, but I want to be able to keep everything connected and connect to the school's network, to play others in different rooms.

Is there a certain way I'd need to set up my router, or is this possible?