[106865] in North American Network Operators' Group
Re: Public shaming list for ISPs announcing other ISPs IP space by
daemon@ATHENA.MIT.EDU (Joe Malcolm)
Fri Aug 15 07:53:36 2008
Date: Fri, 15 Aug 2008 11:53:23 +0000
From: Joe Malcolm <jmalcolm@uraeus.com>
To: nanog@nanog.org
In-Reply-To: <20080814190917.GI53528@puck.nether.net>
Errors-To: nanog-bounces@nanog.org
Jared Mauch writes:
> No really, the reason for some leaks isn't because so-and-so was
>never a customer, they were. 5 years ago. nobody removed the routes from
>the IRR or AS-SET or <insert method here> and now the route is learned via
>some other location and it's bypassed your perimiter security and
>infiltrated your BGP.
The issue of cleaning up legacy state for former customers applies to
many things beyond route announcements - though the latter may be one
of the more visible remnants. I suspect relatively few companies can
accurately and completely track the state associated with a customer
such that it can be removed once the customer billing stops. (Or they
stop paying.) This really needs to be automated and the backend
databases need a way to associate records with particular billing
entities, or else you will find yourself slowly cleaning up after past
customers at inconvenient moments for years.
Joe
