Thus spake "Dorian Kim" <dorian@blackrose.org>
Route filtering and route validation are not necessarily the same things. AFAIK, there are no scalable mechanisms for route validation deployed today.
A few years ago, I saw an I-D that proposed BGP route repudiation, e.g. you can't be sure a route is _good_, but you can be sure some routes are _bad_. This seems to solve our bogon problem if not the general case. In the meantime, we're still waiting for uRPF implementations that are useful in multihomed networks -- a must-have for widespread deployment. S Stephen Sprunk "God does not play dice." --Albert Einstein CCIE #3723 "God is an inveterate gambler, and He throws the K5SSS dice at every possible opportunity." --Stephen Hawking