[107286] in North American Network Operators' Group
BGP Attack - Best Defense ?
daemon@ATHENA.MIT.EDU (Scott Weeks)
Fri Aug 29 17:29:49 2008
Date: Fri, 29 Aug 2008 14:29:21 -0700
From: "Scott Weeks" <surfer@mauigateway.com>
To: <nanog@merit.edu>
Reply-To: surfer@mauigateway.com
Errors-To: nanog-bounces@nanog.org
My question revolves around the best recovery from an attack of the type we've been discussing. I only figured out the attack methodology yesterday evening Hawaiian Standard Time. Be gentle please... :-)
I am signed up for the Prefix Hijack Alert System (phas.netsec.colostate.edu) and would be alerted in about 6 hours (or less?) about a prefix announcement change.
I then would deaggregate (as little as possible) to be able to announce the same more specific as the attacker.
The topologically closer ASs would then start sending the traffic to me properly. Those topologically closest to the attacker would still send to the attack path.
I would then try to contact the ASs still using the attack path to get it stopped. (Yell help on NANOG? ;-)
Is this the best recovery plan at this time?
scott
