[104375] in North American Network Operators' Group
Re: [NANOG] Microsoft.com PMTUD black hole? (working with Microsoft
daemon@ATHENA.MIT.EDU (Niels Bakker)
Thu May 8 18:45:10 2008
Date: Fri, 9 May 2008 00:44:34 +0200
From: Niels Bakker <niels=nanog@bakker.net>
To: nanog@merit.edu
Mail-Followup-To: nanog@merit.edu
In-Reply-To: <48237207.8090202@bgp4.net>
Errors-To: nanog-bounces@nanog.org
* netgeek@bgp4.net (Janet Sullivan) [Thu 08 May 2008, 23:35 CEST]:
>1) Yes, Microsoft blocks ICMP for the most part, which will break Path
>MTU Discovery. This is a known issue. If you run into it, its most
>likely because the servers you are trying to talk to in MS-land don't
>have black hole router detection turned on.
I find it hilarious that one part of the company had to come up with a
hack to work around the inability of another part of the company to
understand how TCP/IP works
-- Niels.
--
_______________________________________________
NANOG mailing list
NANOG@nanog.org
http://mailman.nanog.org/mailman/listinfo/nanog
