[52077] in North American Network Operators' Group
Re: BGP Default Route
daemon@ATHENA.MIT.EDU (Mike Leber)
Sat Sep 14 16:19:29 2002
Date: Sat, 14 Sep 2002 13:19:07 -0700 (PDT)
From: Mike Leber <mleber@he.net>
To: "Lupi, Guy" <Guy.Lupi@eurekaggn.com>
Cc: "'nanog@merit.edu'" <nanog@merit.edu>
In-Reply-To: <51592BEAAEE8D411A24400508B693A4E020A7E99@EXCHNYIS002>
Errors-To: owner-nanog-outgoing@merit.edu
On Sat, 14 Sep 2002, Lupi, Guy wrote:
> I was wondering how people tend to generate default routes to customers
> running bgp.
Typically you would only originate default via BGP to a customer that
isn't taking a full view.
neighbor 10.10.10.2 default-originate
neighbor 10.10.10.2 filter-list 9 out
ip as-path access-list 9 deny ^.*$
> Is it from the aggregation router that customers are directly
> connected to, or from one or more core/border routers?
In the example above the default originate is done via a specific BGP
session, so it isn't router wide on either core or border routers.
> If one is using a default route to null 0...
I'll leave the rest of this for somebody else to answer.
Mike.
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