Our students have started playing Counter-Strike on our network by starting up a CS server on a laptop. This server uses UDP and port 27015. Other students can then join and play using our internal network. They cannot play across the internet because we have filtering in place and an appliance that blocks connections to internet gaming sites. How can I stop this from happening? Any ideas are greatly appreciated.

Joe Merricks
Hargrave Military Academy
merricksj@hargrave.edu