[60878] in North American Network Operators' Group

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Re: AT&T Blocking ICMP (was RE: AT&T US Network Slowdown?)

daemon@ATHENA.MIT.EDU (Valdis.Kletnieks@vt.edu)
Tue Aug 19 15:16:28 2003

To: Paul Jasa <pjasa@univision.net>
Cc: nanog@merit.edu
In-Reply-To: Your message of "Tue, 19 Aug 2003 12:19:28 EDT."
             <7E43058117985342A83CC0EFEAF66351026F1E97@MIA-CL01.utg.uvn.net> 
From: Valdis.Kletnieks@vt.edu
Date: Tue, 19 Aug 2003 12:34:45 -0400
Errors-To: owner-nanog-outgoing@merit.edu


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On Tue, 19 Aug 2003 12:19:28 EDT, Paul Jasa <pjasa@univision.net>  said:
 
> A call to AT&T Worldnet confirms that AT&T Worldnet service is blocking ICMP in
> order to deal with an undefined emergency.  Nothing posted on their site, nor
> any other info is available.  If anyone has info related to this "icmp outage",
> please advise.  Thanks!

The latest DCOM worm seems to have started it's burn near ATT's San Jose presence.
They're probably being pinged to death, or trying to contain the damage...

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