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Re: Is it time to abandon bogon prefix filters?
On Aug 6, 2008, at 10:28 AM, Rob Thomas wrote:
This makes sense especially for static filters. Automated feeds, such as the bogon route-server or DNS zones, leaves folks with options.
Honestly, I don't believe the 80/20 rules applies here.
Until all transit networks are willing to strictly filter their downstreams (and themselves!), if there is any unused space (note I said "unused", not "unallocated"), the miscreants will use it. They are not going around saying "oh, damn, there are only a few /8s left, we better stop!".
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 :).
-- TTFN, patrick