Connecting to a Server Via LAN

[ssspawn]

Hey. I'm currently on a dialup connection tryin to host and play. But my brothers want to play on the server also. We have 5 computers on our LAN and with a dialup connection we all deffinetly cant leave the network via dialup and return its totaly backasswards. Its pretty redickulous. I was curious if anyone has any ideas or suggestions Besides get a faster connection........(i've tried trust me...). I just want to be able to connect to the server in the lan. If people can connect to it from the internet i could care less. I can control that factor Thanks for anyones help.