On Tue, Dec 28, 2010 at 8:46 AM, Erik Mitchell <erik.mitchell at gmail.com> wrote: > Check out PFSense (http://www.pfsense.org/). It's a firewall/router > distribution based on FreeBSD. Can PFSense perform stateful packet inspection? One of the challenges with bit torrent is that it can be tunneled on just about any port. The only way to truly knock it out is to inspect the packet, looking for the bit torrent headers, then kill the connection if it finds the headers. I can think of some larger commercial based apps/appliances that do this, but I'm not sure what exists for this in an open source application stack. Brian