09-05-2007, 12:29 PM
Quote:Within the last few weeks, there have been a number of reports by Comcast customers claiming that their BitTorrent downloads and uploads have been capped or worse, blocked...
{Comcast is} sending a reset (or RST) packet to the Comcast customer, pretending to be from the host at the end of the BitTorrent connection. This RST packet is the TCP equivalent of stating "I don't want to talk to you anymore, please terminate the connection". It is extremely important to note that when Comcast creates and sends this packet, they do not identify themselves as the the source of packet, but instead impersonate one of the parties involved in the BitTorrent connection. This is where things get rather shady.
Last year, researchers from Cambridge University analyzed the Great Firewall of China and found that it used falsified RST packets to terminate connections that matched keyword filters...
Ok, so the Chinese government and Comcast are using the same censorship techniques. Why should we care? The Chinese government doesn't have to pay attention to US law, but Comcast, being a US company, does...
full article: http://www.cnet.com/8301-13739_1-9769645-46.html