Limit the bandwidth usage in an Domain.

[LalanKG]

Is there any tools/utilities to Limit the bandwidth usage in an Domain.

My requirement is
Assume I have an Internet cafe. say with 30 machines,connected to a
LAN(windows 2k). What I required is to allow an user(in a session) to use a maximum of
20 GB and to monitor the usage in each session.

Please help with comments or any link which could help me..

Lalan

 

[minxca]

google bandwidth monitor

 

[Teecee33]

http://www.allot.com

Maybe a netenforcer...