Home page logo
/

nanog logo nanog mailing list archives

IS-IS protocol implementation problem
From: Sean Donelan <sean () donelan com>
Date: 29 Oct 2000 14:56:21 -0800


Network operators using IS-IS on Cisco should be aware of a problem
which can result in their routers reloading unexpectedly when a corrupt
IS-IS packet is received.  Cisco has fixed the problem in various 12.0
software trains.  The problem can cascade through a single provider's
network.  Because IS-IS is an IGP protocol, it does not propagate between
providers.

This has already affected a provider.  I haven't found out what is
originating the bad IS-IS packet, i.e. is this an inter-vender operability
issue?






  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]