nanog mailing list archives
Re: do bogon filters still help?
From: "william(at)elan.net" <william () elan net>
Date: Wed, 11 Jan 2006 13:47:00 -0800 (PST)
On Wed, 11 Jan 2006, Florian Weimer wrote:
You should move 192.88.99.0/24 from SPECIAL to YES (although you shouldn't see source addresses from that prefix, no matter what the folks at bit.nl think). 169.254.0.0/16 should be NO (otherwise it wouldn't be link-local).I think you just explained it yourself why this is "SPECIAL", i.e. routing of it depends on local policies and setup. Anything where it is not clear from RFCs if it should be routable or not and where it depends on local decisions & policy is what I called SPECIAL.Uhm, no. 6to4 anycast only works without hickups when the prefix is NOT treated in any special way. 8-) That's part of its charm. If operators start to install special filters, they break this functionality for no real gain.
I think this is still quite a bit of a special case as opposed to for example 24/8 block which is ultimately used same as regular RIR blocks. Nevertheless I changed routing to "YES" and leave explanation for future. I also did update and listed comment for reserved blocks with explanation that either regularly updated filters should be used or blocks should be left fully routable. -- William Leibzon Elan Networks william () elan net
Current thread:
- Re: do bogon filters still help?, (continued)
- Re: do bogon filters still help? Rob Thomas (Jan 11)
- Re: do bogon filters still help? Edward Lewis (Jan 11)
- Re: do bogon filters still help? william(at)elan.net (Jan 11)
- Re: do bogon filters still help? Florian Weimer (Jan 11)
- Re: do bogon filters still help? Martin Hannigan (Jan 11)
- Re: do bogon filters still help? Florian Weimer (Jan 11)
- Re: do bogon filters still help? Edward Lewis (Jan 11)
- Re: do bogon filters still help? william(at)elan.net (Jan 11)
- Re: do bogon filters still help? william(at)elan.net (Jan 11)
- Re: do bogon filters still help? william(at)elan.net (Jan 11)
- Re: do bogon filters still help? Florian Weimer (Jan 11)
- Re: do bogon filters still help? william(at)elan.net (Jan 11)
- Re: do bogon filters still help? Michael . Dillon (Jan 12)
- Re: do bogon filters still help? Pim van Pelt (Jan 11)
- Re: do bogon filters still help? Florian Weimer (Jan 11)
- Re: do bogon filters still help? Pim van Pelt (Jan 11)
- Re: do bogon filters still help? Daniel Roesen (Jan 11)
- Re: do bogon filters still help? Joseph S D Yao (Jan 12)
- Re: do bogon filters still help? Kevin Loch (Jan 12)
- Re: do bogon filters still help? Pekka Savola (Jan 12)
- Re: do bogon filters still help? Pekka Savola (Jan 11)