Re: Is it time to abandon bogon prefix filters?

Patrick W. Gilmore wrote:

Filter your bogons. But do it in an automated fashion, from a trusted source.

Of course, I recommend Team Cymru, which has a most sterling record. Nearly perfect (other than the fact they still recommend MD5 on BGP sessions :).

How can you recommend Team Cymru, when their product is not in any way a filter? It is merely an automated method of injecting aggregate null routes for bogons, but in no way prevents a network from accepting aggregate or specific bogon announcements (i.e. it does not _filter_). pt