[177560] in North American Network Operators' Group
look for BGP routes containing local AS#
daemon@ATHENA.MIT.EDU (Song Li)
Tue Jan 27 08:45:56 2015
X-Original-To: nanog@nanog.org
Date: Tue, 27 Jan 2015 21:45:38 +0800
From: Song Li <refresh.lsong@gmail.com>
To: nanog list <nanog@nanog.org>
Reply-To: refresh.lsong@gmail.com
Errors-To: nanog-bounces@nanog.org
Hi everyone,
Recently I studied the BGP AS path looping problem, and found that in
most cases, the received BGP routes containing local AS# are suspicious.
However, we checked our BGP routing table (AS23910,CERNET2) on juniper
router(show route hidden terse aspath-regex .*23910.* ), and have not
found such routes in Adj-RIB-In.
We believe that the received BGP routes containing local AS# are related
to BGP security problem. Hence, we want to look for some real cases in
the wild. Could anybody give us some examples of such routes?
Thanks!
Best Regards!
--
Song Li
Room 4-204, FIT Building,
Network Security,
Department of Electronic Engineering,
Tsinghua University, Beijing 100084, China
Tel:( +86) 010-62446440
E-mail: refresh.lsong@gmail.com
