North American Network Operators Group
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Re: AT&T Broadband

  • From: Christopher Schulte
  • Date: Tue Dec 18 13:28:44 2001 
At 09:45 AM 12/18/2001 -0600, Matthew S. Hallacy wrote:
Howdy,

Anyone know what's up with AT&T Broadband in Minnesota? They appear to be blocking *everything* from 24/8 to 24/8 that isn't
port 25/tcp 110/tcp 80/tcp 443/tcp, or icmp. Everything else is being dropped into a growing black hole..
Please clarify:

You live on 24/8 as an ATT broadband subscriber. You try to communicate with another ATT broadband subscriber on 24/8. Your outbound packets to said subscriber on 24/8 are dropped unless destination port is one of tcp ports 25, 110, 80, 443 or icmp. The rest of your outbound packets to the internet as a whole are forwarded as usual.

Is that a reasonable re-wording of your original post?

                                                Thanks,
                                                Matthew S. Hallacy

-c