nanog mailing list archives
Re: Is it time to abandon bogon prefix filters?
From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Wed, 6 Aug 2008 10:55:44 -0400
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
Current thread:
- RE: was bogon filters, now "Brief Segue on 1918", (continued)
- RE: was bogon filters, now "Brief Segue on 1918" TJ (Aug 06)
- RE: was bogon filters, now "Brief Segue on 1918" michael.dillon (Aug 07)
- Re: was bogon filters, now "Brief Segue on 1918" Patrick Darden (Aug 07)
- Re: was bogon filters, now "Brief Segue on 1918" Jay R. Ashworth (Aug 07)
- Re: was bogon filters, now "Brief Segue on 1918" Patrick Darden (Aug 07)
- Re: was bogon filters, now "Brief Segue on 1918" Jay R. Ashworth (Aug 07)
- RE: was bogon filters, now "Brief Segue on 1918" Darden, Patrick S. (Aug 07)
- RE: was bogon filters, now "Brief Segue on 1918" TJ (Aug 12)
- Re: was bogon filters, now "Brief Segue on 1918" Jay R. Ashworth (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Patrick W. Gilmore (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Randy Bush (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Rob Thomas (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Justin Shore (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Rob Evans (Aug 06)
- Re: Is it time to abandon bogon prefix filters? Justin Shore (Aug 06)