[146450] in North American Network Operators' Group
Re: Arguing against using public IP space
daemon@ATHENA.MIT.EDU (Jason Lewis)
Sun Nov 13 18:59:38 2011
In-Reply-To: <4EC057F1.6030105@west.net>
Date: Sun, 13 Nov 2011 18:58:36 -0500
From: Jason Lewis <jlewis@packetnexus.com>
To: Jay Hennigan <jay@west.net>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
>> I think I could announce private IP space, so doesn't that make this
>> argument invalid?
>
> You could announce it. =A0I wouldn't expect anyone else to listen to thos=
e
> announcements other than for the purpose of ridiculing you.
>
People keep pointing to this as unlikely. I argue that spammers are
currently doing this all over the world, maybe not as widespread wiith
1918 space. If I can announce 1918 space to an ISP where my target
is...it doesn't matter if everyone else ignores or drops it. The ISP
allowed it, so all their customers will route the traffic. I still
think it's a valid attack vector, discounting it because people would
laugh at me, seems like a poor security posture.
jas
