[48436] in North American Network Operators' Group
RE: Bogon list
daemon@ATHENA.MIT.EDU (Barry Raveendran Greene)
Tue Jun 4 16:36:30 2002
From: "Barry Raveendran Greene" <bgreene@cisco.com>
To: "Richard A Steenbergen" <ras@e-gerbil.net>,
"David McGaugh" <david_mcgaugh@eli.net>
Cc: "Joe Abley" <jabley@automagic.org>,
"Rob Thomas" <robt@cymru.com>, "NANOG" <nanog@merit.edu>
Date: Tue, 4 Jun 2002 13:33:43 -0700
In-Reply-To: <20020604194700.GZ12164@overlord.e-gerbil.net>
Errors-To: owner-nanog-outgoing@merit.edu
> On Tue, Jun 04, 2002 at 11:04:40AM -0700, David McGaugh wrote:
> > I agree with Joe on this. At one time we were filtering 198.32/16 from
> > our peers but ran into things like ep.net (198.32.6.31) breaking. We now
> > only filter on IXP blocks for which we participate.
> >
> > While on the subject of IXP blocks, we also ended up redistributing the
> > IXP blocks and sending them to our BGP customers (who do not receive a
> > default) so that traceroutes and such from Looking Glasses do not break.
> > They can then choose to filter them as they wish.
>
> Exchange point blocks SHOULDN'T be transited by anyone, therefore you
> should not hear them from your peers.
Agreed. But these are the IXP micro allocations - not "bogons." How you
filter the IXP blocks depends on each ISP and the IXP contracts. So that
would be something you would add to Rob's template.
