Is it time to abandon bogon prefix filters?

Chris Marlatt cmarlatt at
Mon Aug 25 08:38:00 CDT 2008

Valdis.Kletnieks at wrote:
> 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?

IIRC "bogon" is specific to unallocated space. Whether it be advertised 
or not should not matter.



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