Question : Problem: COMCAST BIT TORRENT FIX CONFIG QUESTION

Recently, Comcast has stopped the seeding of torrents.

The following fix has been test on Linux and I am trying to figure out the equivalent for CISCO boxes.

Basically, what they're doing is telling your computer it needs to close it's TCP connection at a certain port (in this case, your torrent clients' port) via the RST TCP reset command.

In Linux, it's a simple fix. Every modern Linux distribution has iptables, so all you have to do is set it up to block this RST command. This should also work in BSD systems, Mac OS X, or any system with iptables.

All you have to do is run the following command, with superuser privileges (change the word $port to whatever port your torrent client uses).

Run in your shell/terminal: iptables -A INPUT -p tcp --dport $port --tcp-flags RST RST -j DROP

OK after all that here is the million dollar question.... I there an equivalent way to block these on a CISCO router (ok I know there is but what is it).....

Answer : Problem: COMCAST BIT TORRENT FIX CONFIG QUESTION

No objection to paq/refund

> access-list XXX deny tcp any any rst
Thanks for that. Its usefull to know. Normally you port the port number in that place in the access-list. I didnt know you could put rst there instead and the cisco documentation on the command at http://www.cisco.com/en/US/docs/ios/12_3/ipaddr/command/reference/ip1_a1g.html#wp1078593 doesnt mention it either.

For the benefit of future readers it may be that you need a fairly new version of the Cisco IOS firmware for this option to be supported.
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