Re: [tcpm] TCP zero window timeout?
Joe Touch <touch@ISI.EDU> Sun, 27 August 2006 02:59 UTC
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Date: Sat, 26 Aug 2006 19:58:43 -0700
From: Joe Touch <touch@ISI.EDU>
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To: MURALI BASHYAM <murali_bashyam@yahoo.com>
Subject: Re: [tcpm] TCP zero window timeout?
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Cc: "Mahdavi, Jamshid" <jamshid.mahdavi@bluecoat.com>, tcpm@ietf.org, "Anantha Ramaiah (ananth)" <ananth@cisco.com>, Fernando Gont <fernando@gont.com.ar>
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MURALI BASHYAM wrote: > Fernando > > I collaborated with mahesh on this, so let me try > making the case for it a little better. > > The problem was found on a TCP proxy, which does not > have any applicaton awareness. In fact application > awareness is not a goal in that environment. Hence the > TCP level solution. Application-aware proxies are one thing (and they would be able to adjust fine here). TCP proxies for splice-like, transport-only gateways are already known to break so many things it's not clear that considering that as a special case is a good argument for modifying TCP. It's a better argument not to use TCP that way. > Having said that, i'd say this timeout is in the same > spirit as the upper bound on the retransmit mechanism > of TCP. TCP could indefinitely retransmit and have the > application timeout too, correct? The problem is that > TCP has a persist state which can potentially exist > infinitely long and which lends itself to abuse by a > malicious peer. TCP is not intended to be robust to security attacks. A peer that can establish a TCP connection is already presumed to be a non-attacker at the TCP level, IMO. JOe
_______________________________________________ tcpm mailing list tcpm@ietf.org https://www1.ietf.org/mailman/listinfo/tcpm
- [tcpm] TCP zero window timeout? Mahesh Jethanandani
- RE: [tcpm] TCP zero window timeout? Mahdavi, Jamshid
- RE: [tcpm] TCP zero window timeout? Fernando Gont
- Re: [tcpm] TCP zero window timeout? Mahesh Jethanandani
- Re: [tcpm] TCP zero window timeout? Joe Touch
- Re: [tcpm] TCP zero window timeout? Fernando Gont
- Re: [tcpm] TCP zero window timeout? MURALI BASHYAM
- RE: [tcpm] TCP zero window timeout? Anantha Ramaiah (ananth)
- Re: [tcpm] TCP zero window timeout? Joe Touch
- Re: [tcpm] TCP zero window timeout? Kuthonuzo Luruo (STSD)
- Re: [tcpm] TCP zero window timeout? Ted Faber
- Re: [tcpm] TCP zero window timeout? Fernando Gont
- Re: [tcpm] TCP zero window timeout? MURALI BASHYAM
- Re: [tcpm] TCP zero window timeout? MURALI BASHYAM
- Re: [tcpm] TCP zero window timeout? Mahesh Jethanandani
- RE: [tcpm] TCP zero window timeout? Caitlin Bestler
- RE: [tcpm] TCP zero window timeout? MURALI BASHYAM
- Re: [tcpm] TCP zero window timeout? Fernando Gont
- Re: [tcpm] TCP zero window timeout? Ted Faber
- Re: [tcpm] TCP zero window timeout? MURALI BASHYAM
- RE: [tcpm] TCP zero window timeout? Caitlin Bestler
- Re: [tcpm] TCP zero window timeout? John Heffner
- RE: [tcpm] TCP zero window timeout? MURALI BASHYAM
- RE: [tcpm] TCP zero window timeout? Caitlin Bestler
- Re: [tcpm] TCP zero window timeout? Mahesh Jethanandani
- Re: [tcpm] TCP zero window timeout? Joe Touch
- Re: [tcpm] TCP zero window timeout? Ted Faber
- Re: [tcpm] TCP zero window timeout? Joe Touch
- Re: [tcpm] TCP zero window timeout? Ted Faber
- Re: [tcpm] TCP zero window timeout? Joe Touch
- Re: [tcpm] TCP zero window timeout? Ted Faber
- Re: [tcpm] TCP zero window timeout? Ted Faber