Re: [v6ops] Operational Implications of IPv6 Packets with Extension Headers
Fernando Gont <fgont@si6networks.com> Mon, 21 September 2020 22:53 UTC
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To: Gyan Mishra <hayabusagsm@gmail.com>
Cc: IPv6 Operations <v6ops@ietf.org>
References: <b697ce45-3c95-f423-ffb7-34f5976496d9@si6networks.com> <F50F122E-158C-4B2F-803E-A443CD576DDC@employees.org> <4bd943dc-71e9-5799-ea60-3623b5f83a8a@si6networks.com> <CABNhwV2XT27i3kQ2EbTE+UxeO1RfupTbS6vWptiOi2a2kF8W5g@mail.gmail.com>
From: Fernando Gont <fgont@si6networks.com>
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Date: Mon, 21 Sep 2020 12:18:53 -0300
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Subject: Re: [v6ops] Operational Implications of IPv6 Packets with Extension Headers
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Gyan, On 19/9/20 16:52, Gyan Mishra wrote: [....] > In that sense, RFC6564 is unable to make any difference. Whether > > providing such feature (common EH format for all EHs, from now on) > would > > have made a difference, is hard to tell... But I'd argue it wouldn't. > > > So bottom line we don’t think there is any operational impact > related to eh drops due to operators filtering based on the catch-22 > issue regarding hardware not being able to support the new EH TLV based > standard RFC 6584 to support “new extension headers” supporting new TLV > as we believe that new are maybe few and far between that bucket that > can impact fast path eh processing. I'm just saying that I don't think RFC6564 will have any sort of impact, for worse or better. > Based on the above we believe that > we are in that same boat as with eh headers use the same protocol number > name space thus impossible to have a complete list so not being able to > be processed. No. I'm saying that you cannot parse something that you don't know what it is. RFC6564 does not change that in any way. [...] > > Also from that perspective as well is not a reason for operators to drop > ant eh and an idea is to maybe just explicitly permit all the original > RFC 8200 standard eh and new RFC 6584 eh headers as a recommendation to > not just drop hbh and other headers that could end up being processed in > the slow path. So instead of doing a drop xyz header followed by a > permit any you explicitly permit all RFC 8200 and RFC 6584 headers If > your platform supports. Please see draft-ietf-v6ops-ipv6-ehs-packet-drops. :-) Thanks, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- [v6ops] Operational Implications of IPv6 Packets … Vasilenko Eduard
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… Vasilenko Eduard
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… otroan
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… otroan
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Philip Homburg
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… Tom Herbert
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… Tom Herbert
- Re: [v6ops] Operational Implications of IPv6 Pack… Gert Doering
- Re: [v6ops] Operational Implications of IPv6 Pack… Joseph Touch
- Re: [v6ops] Operational Implications of IPv6 Pack… Tom Herbert
- Re: [v6ops] Operational Implications of IPv6 Pack… Owen DeLong
- Re: [v6ops] Operational Implications of IPv6 Pack… Joseph Touch
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Brian E Carpenter
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Fred Baker
- [v6ops] Operational Implications of IPv6 Packets … tom petch
- Re: [v6ops] Operational Implications of IPv6 Pack… Vasilenko Eduard
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Brian E Carpenter
- Re: [v6ops] Operational Implications of IPv6 Pack… tom petch
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… tom petch
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Gyan Mishra
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Ole Troan
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Gyan Mishra
- Re: [v6ops] Operational Implications of IPv6 Pack… Fernando Gont
- Re: [v6ops] Operational Implications of IPv6 Pack… Gyan Mishra