[183279] in North American Network Operators' Group
Re: Peering + Transit Circuits
daemon@ATHENA.MIT.EDU (Mark Tinka)
Tue Aug 25 11:16:31 2015
X-Original-To: nanog@nanog.org
To: "Patrick W. Gilmore" <patrick@ianai.net>, NANOG list <nanog@nanog.org>
From: Mark Tinka <mark.tinka@seacom.mu>
Date: Tue, 25 Aug 2015 17:16:08 +0200
In-Reply-To: <1971CB6C-0199-4E58-911E-D99C18450095@ianai.net>
Errors-To: nanog-bounces@nanog.org
On 19/Aug/15 01:12, Patrick W. Gilmore wrote:
>
> Normally a router gets a packet and sends it on its way without looking at the source. However, if you have a router at the IX which has _only_ peer routes and your routes, that solves the problem. If I send you a packet for Comcast, your peering router will drop it and send an ICMP Network Unreachable. No filters to manage, no RIRs to sync, nothing to code, etc.
This is what we do, and to make it more interesting, we have 0/0 and
::/0 on these dedicated peering routers pointing to Null0.
Mark.
