Re: [Int-area] WG Adoption Call: IP Fragmentation Considered Fragile
Toerless Eckert <tte@cs.fau.de> Wed, 29 August 2018 02:10 UTC
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Date: Wed, 29 Aug 2018 04:10:15 +0200
From: Toerless Eckert <tte@cs.fau.de>
To: Tom Herbert <tom@herbertland.com>
Cc: Joe Touch <touch@strayalpha.com>, Christian Huitema <huitema@huitema.net>, int-area <int-area@ietf.org>, intarea-chairs@ietf.org
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Subject: Re: [Int-area] WG Adoption Call: IP Fragmentation Considered Fragile
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On Tue, Aug 28, 2018 at 06:02:19PM -0700, Tom Herbert wrote: > https://tools.ietf.org/html/draft-ietf-tsvwg-udp-options > https://tools.ietf.org/html/draft-ietf-intarea-gue-extensions Thanks > "NOTE: While [RFC2460] required that all nodes must examine and > process the Hop-by-Hop Options header, it is now expected that nodes > along a packet's delivery path only examine and process the Hop-by-Hop > Options header if explicitly configured to do so." The industry does not fix these type of issues in old running code just because someone else wants to deploy new code in new boxes somewhere else along the path. That broken code will kill deployments for a decade until it expires. Besides: Anybody who continues to just evolve code from an old code basis is also unlikely to read, understand and fix this piece in the evolution to rfc8200 too. And there is not even a MUST in that text. And it does not talk about granularity of inspection. Guess what triggered the first wave of bad implementations killing onpath services: IPv4 router alert that was punting ANY IPv4 router alert. Instead of at least only per-IPv4 protocol field in the router-alert. Sorry. Will never fly in real deployment across Internet paths if its based on this lame text in rfc8200. I stand by my suggestion. There is also no consideration at all to rethink even expressing the granularity of deciding whether or not to inspect. > That allowance should be sufficient to resolve most of the the > Hop-by-Hop being dropped problem. All that is being asked of > middleboxes is that they ignore HBH instead of dropping the packet if > they don't want to deal with them. That should not be difficult to > implement. Hopefully, it's just a matter of evangelization and time to > improve the situation. Good luck. Where can i buy short sell options for anything done on the existing hop-by-hop code point ? Cheers Toerless > > See above: short of something that extreme, we should focus > > on doing the right thing for new code but build it in > > such a way that it is not blocked by bad existing old onpath code. > > > Agreed. > > Tom
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- [Int-area] WG Adoption Call: IP Fragmentation Con… Wassim Haddad
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Black, David
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Eric Vyncke (evyncke)
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ron Bonica
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ron Bonica
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Black, David
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ron Bonica
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Fernando Gont
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Fernando Gont
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Fernando Gont
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Fernando Gont
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Brian E Carpenter
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Wassim Haddad
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Mikael Abrahamsson
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joel Jaeggli
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Christian Huitema
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Ole Troan
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Toerless Eckert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… tom
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Christian Huitema
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Christian Huitema
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Templin (US), Fred L
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Tom Herbert
- Re: [Int-area] WG Adoption Call: IP Fragmentation… Joe Touch