North American Network Operators Group

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Re: Blocking servers: Comcast accidently blocks gamers

  • From: Jeff Shultz
  • Date: Wed Oct 15 11:16:19 2003

Does anyone know what ports were blocked? 

On Tue, 14 Oct 2003 23:14:47 -0400 (EDT), Sean Donelan wrote:

>People use the Internet for a lot of different reasons.  Its not
>all client/server access.  End-to-end communications occurs between
>many applications.  Its always interesting to watch what things
>break when ISPs start filtering ports, even if it happens accidently.
>A Comcast representative confirmed that the problem was with the cable
>company. A routine upgrade of the software some Comcast routers use
>inadvertently blocked access to certain server ports, the representative
>said, adding that the problem was fixed late Monday. ISPs commonly use
>port-blocking rules to restrict access to a server that may be generating
>hacking attacks or other objectionable activity.

Jeff Shultz
Network Support
Willamette Valley Internet
[email protected]