Re: [Tsv-art] Tsvart last call review of draft-ietf-opsec-ipv6-eh-filtering-06
Eric Rescorla <ekr@rtfm.com> Mon, 26 November 2018 15:19 UTC
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References: <154300282321.9639.11604402305352742547@ietfa.amsl.com> <C4886ABA-3BBE-46AE-B2D9-9A6836D7A8BB@strayalpha.com> <2c28d4ac-87de-bcaf-54e8-4e745235c800@gmail.com> <977CA53D-7F72-4443-9DE2-F75F7A7C1569@strayalpha.com> <d6deb7af-99dd-9013-2722-8ebbe00c0b37@si6networks.com> <1CB13135-D87A-4100-8668-D761058E1388@strayalpha.com> <4138e2eb-71e0-4c3d-36cb-38da8369a7c6@si6networks.com> <1BEB4C2C-0873-4D08-8A7D-1C3E30AC374F@strayalpha.com>
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From: Eric Rescorla <ekr@rtfm.com>
Date: Mon, 26 Nov 2018 07:18:49 -0800
Message-ID: <CABcZeBMw+ZS=VAtrciGEKkQodCXmP-WSGjjoGYyrK+328kCBnw@mail.gmail.com>
To: Joe Touch <touch@strayalpha.com>
Cc: Fernando Gont <fgont@si6networks.com>, IETF discussion list <ietf@ietf.org>, draft-ietf-opsec-ipv6-eh-filtering.all@ietf.org, opsec@ietf.org, tsv-art@ietf.org
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Subject: Re: [Tsv-art] Tsvart last call review of draft-ietf-opsec-ipv6-eh-filtering-06
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Picking a random message to reply to. I'm not any kind of IPv6 expert, so I'm not taking a position on the goodness or badness of extension headers. With that said, we do have a fair amount of experience with trying to deploy new protocols in the face of significant levels of network-level filtering; TLS 1.3 was delayed by a year or so when we discovered that there were middleboxes which made incorrect assumptions about our extension points. At the end of the day, we got things working, but at the cost of some not very attractive hacks, and if you look at QUIC, a lot of the design is motivated by concealing extension points from network intermediaries in order to avoid a replay of this scenario. Otherwise, we're worried that we won't be able to extend the protocol in the future. So, at least from the endpoint's perspective, a situation in which network intermediaries block any new protocol features they don't recognize is not really great. -Ekr On Mon, Nov 26, 2018 at 6:36 AM Joe Touch <touch@strayalpha.com> wrote: > > > > On Nov 25, 2018, at 11:54 PM, Fernando Gont <fgont@si6networks.com> > wrote: > > > > What this doc tries to do is to analyze the possible effects of > > different types and options, and only advice to drop them when there is > > a clear reason to do so. > > It claims those actions based on security. This is not a security issue. > It is a revenue preservation issue. > > There is a big difference between using a protocol feature and abusing it. > The implication that merely using some of these features is a security > issue and an abuse is the problem with this document - and the approach of > similar documents. > > Joe >
- [Tsv-art] Tsvart last call review of draft-ietf-o… Michael Scharf
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Nick Hilliard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christian Huitema
- Re: [Tsv-art] Tsvart last call review of draft-ie… Nick Hilliard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christian Huitema
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] Tsvart last call review of draft-ie… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Eric Rescorla
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Benjamin Kaduk
- Re: [Tsv-art] Tsvart last call review of draft-ie… Mark Andrews
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] Tsvart last call review of draft-ie… C. M. Heard
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christopher Morrow
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Brian E Carpenter
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Joe Touch
- Re: [Tsv-art] Tsvart last call review of draft-ie… Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Mark Andrews
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … David Farmer
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Randy Bush
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Stewart Bryant
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Christian Huitema
- [Tsv-art] HbH flags [Tsvart last call review of d… Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Brian E Carpenter
- [Tsv-art] game over, EH [Tsvart last call review … Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- [Tsv-art] ECMP [Tsvart last call review of draft-… Brian E Carpenter
- Re: [Tsv-art] HbH flags [Tsvart last call review … Brian E Carpenter
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stephen Farrell
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] [OPSEC] HbH flags [Tsvart last call… Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Brian Trammell (IETF)
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] HbH flags [Tsvart last call review … Ole Troan
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Ole Troan
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] HbH flags [Tsvart last call review … Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Stewart Bryant
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Stewart Bryant
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Gert Doering
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Ole Troan
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Spencer Dawkins at IETF
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] [OPSEC] HbH flags [Tsvart last call… Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Ole Troan
- Re: [Tsv-art] HbH flags [Tsvart last call review … Stewart Bryant
- Re: [Tsv-art] HbH flags [Tsvart last call review … Joe Touch
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Smith, Donald
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Ole Troan
- Re: [Tsv-art] game over, EH [Tsvart last call rev… C. M. Heard
- Re: [Tsv-art] [OPSEC] game over, EH [Tsvart last … Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… C. M. Heard
- Re: [Tsv-art] [OPSEC] game over, EH [Tsvart last … Smith, Donald
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Nico Williams
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Nick Hilliard
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Brian E Carpenter
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Nick Hilliard
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Jared Mauch
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Christopher Morrow
- Re: [Tsv-art] HbH flags [Tsvart last call review … Christopher Morrow
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Gert Doering
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Joe Touch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Pete Resnick
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Jared Mauch
- Re: [Tsv-art] HbH flags [Tsvart last call review … Jared Mauch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Joe Touch
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Nico Williams
- [Tsv-art] OT: TCP session lifetime - Re: game ove… Jared Mauch
- Re: [Tsv-art] OT: TCP session lifetime - Re: game… Nico Williams
- Re: [Tsv-art] game over, EH [Tsvart last call rev… Eric Rescorla
- Re: [Tsv-art] OT: TCP session lifetime - Re: game… Gert Doering
- [Tsv-art] Engaging constructively [HbH flags [Tsv… Alissa Cooper
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Wes Hardaker
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Brian E Carpenter
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Wes Hardaker
- Re: [Tsv-art] [OPSEC] Tsvart last call review of … Fernando Gont
- Re: [Tsv-art] ECMP [Tsvart last call review of dr… Fernando Gont