asymmetric routing

[Pekka Savola]

On Wed, 30 Jan 2002, Dave Wilson wrote:
> These are separate considerations, however. Forwarding traffic with a 
> source address that is not your own, for good or ill, doesn't harm the 
> routing table in the same way that unaggregated advertisements do, and 
> so it seems to me it's entirely compatible with (or agnostic of) the 
> principle of strict aggregation.

Yes, but forwarding when not advertising can lead to unexpected results; 
e.g. _any_ router discarding the packets due to failing ingress 
filtering checks.
 
-- 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords