[170668] in North American Network Operators' Group
Re: BGPMON Alert Questions
daemon@ATHENA.MIT.EDU (Mark Tinka)
Thu Apr 3 08:05:21 2014
From: Mark Tinka <mark.tinka@seacom.mu>
To: nanog@nanog.org
Date: Thu, 3 Apr 2014 14:04:44 +0200
In-Reply-To: <Pine.LNX.4.64.1404021453410.8170@whammy.cluebyfour.org>
Reply-To: mark.tinka@seacom.mu
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Wednesday, April 02, 2014 08:59:58 PM Justin M. Streiner=20
wrote:
> It's pretty clear that both parties have dropped the ball
> in a big way, in terms of sane BGP filtering practices.
It's amazing, isn't it?
I have a customer of one my upstreams (Upstream A), at the=20
moment, who are leaking my routes to another one of their=20
upstreams (Upstream B). The problem is that Upstream B is=20
re-announcing my leaked routes from their customer to the=20
rest of the Internet.
So both Upstream B's customer as well as Upstream B are at=20
fault. That Upstream B is simply "accepting everything"=20
their customer is sending to them without applying proper=20
filters, or checking to confirm that what their customer=20
needs to send them should come from them is absolutely and=20
unacceptably shocking!
A lot of people seem to have forgotten 2008.
Mark.
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