I'm trying to control access to BitTorrent in my network. Presumably the best way to do this is using the router, a Netgear DG834GV.
I've set up a custom service that covers TCP ports 6881 - 6999 (port numbers from here). I've set up an Outbound Services filter that says "Block always".
Yet when I then start my test torrent (http://releases.ubuntu.com/9.10/ubuntu-9.10-server-i386.iso.torrent), the system is downloading the file regardless.
Is there some terribly obvious step that I might be missing here, that might account for the issue? Are there some other ranges that I should be blocking instead, maybe? Or maybe I just need to wait longer for the change to propagate before it will work?