Hi, I'm asked to make a program for a lan-party (http://www.vbforums.com/showthread.php?t=443896)
So I came up with an idea.
The main server closes all IP's that are NOT on some kind of list every x seconds.

So without the IP change thing.

So lets say I request the source code (or how to) to disconnect from a specific IP..
Is this possible in one of the languages I know? (VB,C#,C,C++)