nanog mailing list archives
Re: Is it time to abandon bogon prefix filters?
From: Pete Templin <petelists () templin org>
Date: Sun, 17 Aug 2008 19:57:25 -0500
Tomas L. Byrnes wrote:
Since there are ways to dynamically filter the bogons, using BGP or DNS, I don't really see the need to stop doing so. If you're managing your routing and firewall filters manually, you have bigger problems than therelease of Bogon space.
Can you share the Cisco configuration snippet you recommend to dynamically FILTER bogons using BGP or DNS? Not just inserting null-routes for the bogon aggregates, but preventing the acceptance of more-specifics that transits/peers/customers have managed to sneak past someone's filters (or lack thereof), please.
(Without an offline configuration generator, I postulate that it can't be done.)
pt
Current thread:
- RE: Is it time to abandon bogon prefix filters?, (continued)
- RE: Is it time to abandon bogon prefix filters? michael.dillon (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Jeff Aitken (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Sean Donelan (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Steven M. Bellovin (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Sean Donelan (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Randy Bush (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Robert E. Seastrom (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Laurence F. Sheldon, Jr. (Aug 15)
- Re: Is it time to abandon bogon prefix filters? Robert E. Seastrom (Aug 15)
- RE: Is it time to abandon bogon prefix filters? Tomas L. Byrnes (Aug 16)
- Re: Is it time to abandon bogon prefix filters? Pete Templin (Aug 17)
- RE: Is it time to abandon bogon prefix filters? Tomas L. Byrnes (Aug 17)
- RE: Is it time to abandon bogon prefix filters? michael.dillon (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Jared Mauch (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Pete Templin (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Sam Stickland (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Nathan Ward (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Chris Adams (Aug 18)
- RE: Is it time to abandon bogon prefix filters? Tomas L. Byrnes (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Danny McPherson (Aug 18)
- Re: Is it time to abandon bogon prefix filters? Sean Donelan (Aug 21)