[40291] in North American Network Operators' Group

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Re: TCP session disconnection caused by Code Red?

daemon@ATHENA.MIT.EDU (mike harrison)
Mon Aug 6 14:31:56 2001

Date: Mon, 6 Aug 2001 14:29:10 -0400 (EDT)
From: mike harrison <meuon@highertech.net>
To: Blaz Zupan <blaz@amis.net>
Cc: "nanog@nanog.org" <nanog@nanog.org>
In-Reply-To: <20010806194849.T90386-100000@titanic.medinet.si>
Message-ID: <Pine.LNX.4.10.10108061427190.10125-100000@home.highertech.net>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu


> For the last few days, our network seems to be basically unreachable from the
> outside. Most incoming TCP sessions (web requests, incoming mail, telnet
> sessions, etc.) often fail with a simple "Connection refused" like nobody is

Your routers are brain dead from the load.. routers that are used to
handling a few thousand connections are being asked to handle 10's of
thousands. 1 good 1000+ address scan from an ISDN user kills my
Lucent/Ascend TNT unless we filter for it. 


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