http://www.andrewlih.com/blog/2007/10/24/comcast-does-a-gfw/ New Media researcher Sat, 30 Aug 2008 15:10:57 +0000 http://wordpress.org/?v=2.0.2 http://www.andrewlih.com/blog/2007/10/24/comcast-does-a-gfw/#comment-81604 Fri, 26 Oct 2007 05:32:15 +0000 http://www.andrewlih.com/blog/2007/10/24/comcast-does-a-gfw/#comment-81604 [...] Andrew Lih has more on this: It seems the US Internet service provider has been using Great Firewall-style tactics to prevent customers from running P2P protocols like BitTorrent. Some sleuthing by the EFF found that TCP reset packets (RST) are sent to kill connections related to P2P file transfers by Comcast customers. This clandestine connection sniping is pretty hard to diagnose without geeky tools like Wireshark or ethereal, but the shutdown technique is used by more and more ISPs. It’s what the Great Firewall here in China depends on for blocks triggered by keywords. [...] […] Andrew Lih has more on this: It seems the US Internet service provider has been using Great Firewall-style tactics to prevent customers from running P2P protocols like BitTorrent. Some sleuthing by the EFF found that TCP reset packets (RST) are sent to kill connections related to P2P file transfers by Comcast customers. This clandestine connection sniping is pretty hard to diagnose without geeky tools like Wireshark or ethereal, but the shutdown technique is used by more and more ISPs. It’s what the Great Firewall here in China depends on for blocks triggered by keywords. […]

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