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BCP38 - Internet Death Penalty

On Thu, Mar 28, 2013 at 12:19 PM, Leo Bicknell <bicknell at ufp.org> wrote:
> If you think about a simple multi-homing situation where a person
> has their own IP space, their own ASN, and connects to two providers
> they will announce all of their routes to both providers.
> The feature I would like is to set the _packet filter_ based on the
> _received routes_ over BGP.  Actually, received routes post prefix list.

Hi Leo,

Since you've configured a prefix list to specify what BGP routes
you're willing to accept from the simple multihomed customer (you
have, right?) why set a source filter from the same data instead of
trying to build it from routing table guesswork?

Bill Herrin

William D. Herrin ................ herrin at dirtside.com  bill at herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004