We're looking for a way to monitor the usage (how much traffic on which ports, web sites visited, programs that have been accessing the internet, etc...)<BR><BR>We're willing to look at open source ...

Sniffnet is a network monitoring tool to help you easily keep track of your Internet traffic. Whether you want to gather statistics, or you need to inspect more in depth what's going on in your ...

I would try contacting the makers of the Avirt software and seeing if they can help you. The only thing along these lines I've seen is MRTG, but that is more of a traffic amount graph and works based ...