As of August 18th, 2007, Comcast has begun limiting BitTorrent, Limewire, and other Peer-to-peer application upload speeds through Sandvine, which cannot be bypassed solely by encrypting the packets.[7]
To counter Comcast's sabotage, one can set their router, firewall software, or iptables (under Unix/Linux/BSD) to simply drop TCP packets carrying the "RST" (Connection Reset) flag, on whatever ports their BitTorrent client uses, or to tunnel their BitTorrent traffic through SSH.
Discuss.