Re: [multipathtcp] Consensus call on potential MPTCP proxy work
Joe Touch <touch@isi.edu> Mon, 24 April 2017 15:24 UTC
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To: mohamed.boucadair@orange.com
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From: Joe Touch <touch@isi.edu>
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Date: Mon, 24 Apr 2017 08:23:30 -0700
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Subject: Re: [multipathtcp] Consensus call on potential MPTCP proxy work
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On 4/24/2017 8:03 AM, mohamed.boucadair@orange.com wrote: > Re-, > > Do you consider a NAT implementation as part of your first category or the second one? A NAT is part of the second one. You'll notice that there are no IETF-endorsed NAT solutions - only protocols to talk directly to NATs or methods to overcome what NATs do. > BTW, the mptcp proxy documents do only describe the external behavior. No implementation-specific assumptions/details are included. When you require the MPTCP SYN to be issued before the SYN-ACK is sent to the originating client, that is specifying split-TCP behavior that the IETF has never endorsed. The same is true when you try to reinvent ways to interpret SYN data before the MPTCP 3WHS completes - reinventing TFO without TFO's protections. Joe > > Cheers, > Med > >> -----Message d'origine----- >> De : Joe Touch [mailto:touch@isi.edu] >> Envoyé : lundi 24 avril 2017 16:49 >> À : BOUCADAIR Mohamed IMT/OLN >> Cc : philip.eardley@bt.com; multipathtcp@ietf.org >> Objet : Re: [multipathtcp] Consensus call on potential MPTCP proxy work >> >> Med, >> >> A proxy can operate at the conventional socket layer and would not have or >> need direct access to SYN segments. Any information needed to reconstitute >> the SYN at the upstream proxy could be retrieved in other ways. >> >> You're pushing a split-TCP solution, one that (again, I repeat) the IETF >> has never sanctioned and I do not agree with. >> >> Joe >> >>> On Apr 24, 2017, at 1:23 AM, <mohamed.boucadair@orange.com> >> <mohamed.boucadair@orange.com> wrote: >>> Joe, >>> >>> Transforming a TCP connection into MPTCP connection will obviously need >> to access to SYNs to insert MPTCP options. >>> This is the basic behavior of ** any ** MPTCP proxy. >>> >>> Cheers, >>> Med >>> >>>> -----Message d'origine----- >>>> De : Joe Touch [mailto:touch@isi.edu] >>>> Envoyé : vendredi 21 avril 2017 18:04 >>>> À : BOUCADAIR Mohamed IMT/OLN; philip.eardley@bt.com; >>>> multipathtcp@ietf.org >>>> Objet : Re: [multipathtcp] Consensus call on potential MPTCP proxy work >>>> >>>> Med, >>>> >>>> I've made my position clear too. >>>> >>>> I do not support this doc as MPTCP work. >>>> >>>> I also call into question whether this is in-scope for MPTCP. MPTCP is >>>> chartered to work within MPTCP - but this solution requires access to >>>> raw incoming SYNs inside a different TCP connection, which is no longer >>>> in-scope IMO. >>>> >>>> Joe >>>>
- [multipathtcp] Consensus call on potential MPTCP … philip.eardley
- Re: [multipathtcp] Consensus call on potential MP… christian.jacquenet
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… Stefano Secci
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Sargent, Matthew T. (GRC-LCA0)[Peerless Technologies]
- Re: [multipathtcp] Consensus call on potential MP… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: [multipathtcp] Consensus call on potential MP… Henderickx, Wim (Nokia - BE/Antwerp)
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Yoshifumi Nishida
- Re: [multipathtcp] Consensus call on potential MP… David Allan I
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Yoshifumi Nishida
- Re: [multipathtcp] Consensus call on potential MP… Olivier Bonaventure
- Re: [multipathtcp] Consensus call on potential MP… Costin Raiciu
- Re: [multipathtcp] Consensus call on potential MP… Olivier Bonaventure
- Re: [multipathtcp] Consensus call on potential MP… philip.eardley
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Markus.Brunner3
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Robert Skog
- Re: [multipathtcp] Consensus call on potential MP… Sargent, Matthew T. (GRC-LCA0)[Peerless Technologies]
- Re: [multipathtcp] Consensus call on potential MP… Jordan Melzer
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Sargent, Matthew T. (GRC-LCA0)[Peerless Technologies]
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Eggert, Lars
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Eggert, Lars
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Yoshifumi Nishida
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… philip.eardley
- Re: [multipathtcp] Consensus call on potential MP… Sébastien Barré
- Re: [multipathtcp] Consensus call on potential MP… Wouter Cloetens
- [multipathtcp] Increasing usage of MPTCP [was: Co… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… SungHoon Seo
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Increasing usage of MPTCP [was… Olivier Bonaventure
- Re: [multipathtcp] Consensus call on potential MP… Matt Sargent
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Increasing usage of MPTCP [was… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Meyer, Ullrich, Vodafone DE
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… Juliusz Chroboczek
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair
- Re: [multipathtcp] Consensus call on potential MP… Joe Touch
- Re: [multipathtcp] Consensus call on potential MP… Yoshifumi Nishida
- Re: [multipathtcp] Consensus call on potential MP… mohamed.boucadair