Blocking bittorrent downloaders

[[BB] Rick James]

What is the easiest most effective way to block the ports used by Bittorrent. For example, if I wanted to block port 6881 used by Bittorrent, what is the best way to do it? I have a managed switch that I think I can block that traffic on, but is there a way to do it in Windows on the server side? I'm running a Windows 2003 Server that is set up for my internet gateway.

Thoughts and or suggestions?

 

[sniper991122]

I've got the same problem.. I noticed my ping go waaay up during the day and after resetting the modem for months I finally realized that turning off limewire on both their computers kept the ping down to ~100 or below instead of the astronomical 1,000 it had been when they were on... (a little different but p2p rather...)

I was hoping there was some way to block it in the router or to disable certain ports but i'll keep watch on this thread to read some suggestions...