On Sun, 24 Aug 2008 23:21:23 PDT, "Tomas L. Byrnes" said: > You're missing one of the basic issues with bogon sources: they are > often advertised bogons, IE the bad guy DOES care about getting the > packets back, and has, in fact, created a way to do so.
But if you've seen a BGP announcement with a prefix that covers the source, is it really a bogon anymore? At that point, you're not worrying about bogon filtering, you're worrying about sanity-checking what BGP advertisements you accept. Also a worthy thing to do, but different from bogon filtering.
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