I did not realize you were routerless

in that case i guess the only way to connect is with another ip.
It would not be a bad idea to purchase a router, linksys has them on sale at office max for about $60, and once you get one you can do away with the additional ip adress and re-coup the cost of the router in 6 months or so.
Plus with a router you have alot more functionallity with your network, not to mention almost all routers have built-in fire walls.
But hey if it works what the hell.