Re: [lisp] IPv6 UDP checksum issue
Marshall Eubanks <tme@americafree.tv> Tue, 04 August 2009 14:30 UTC
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From: Marshall Eubanks <tme@americafree.tv>
To: Sam Hartman <hartmans-ietf@mit.edu>
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Subject: Re: [lisp] IPv6 UDP checksum issue
Date: Tue, 04 Aug 2009 10:30:11 -0400
References: <F3FC18FF-E085-47E9-8376-2C4DA00D9F03@americafree.tv> <FA1A0C09-FDE5-4ACD-AEA1-476B090C702D@cisco.com> <C3C481AD-5AB6-462C-A48C-F16E968DE03D@nokia.com> <C8F93853-FB91-4ABC-9CF5-E599FD27490E@cisco.com> <0E71FC61-5A42-4C5A-A22A-69B3213A9EBA@nokia.com> <DB892549-640F-437C-BB4C-2C12A985C4F1@cisco.com> <9A49FB30-3293-4681-86FD-0ABF7CD60994@nokia.com> <4A76101E.7070207@gmail.com> <E883B21D-1DC9-423B-90D4-DF1BB1D774C9@americafree.tv> <tslzlafn2un.fsf@mit.edu>
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Cc: "Philip F. Chimento" <Philip.Chimento@jhuapl.edu>, 6man 6man <ipv6@ietf.org>, Brian Carpenter <brian.e.carpenter@gmail.com>, lisp@ietf.org
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On Aug 4, 2009, at 9:08 AM, Sam Hartman wrote: >>>>>> "Marshall" == Marshall Eubanks <tme@americafree.tv> writes: > > Marshall> Dear Brian; > Marshall> On Aug 2, 2009, at 6:15 PM, Brian E Carpenter wrote: > >> Lars, >>> >>> It seems to me that it would not violate the spirit of RFC2460 >>> if we added a rule that stacks MUST follow the RFC2460 rule by >>> default but MAY deviate from it for duly configured tunnel end >>> points in routers (where "router" is strictly as defined in >>> section 2 of 2460 and the Note in that section). That would >>> fully preserve the requirement as far as hosts and applications >>> go. >>> > > This was exactly the intention of > > Marshall> http://tools.ietf.org/html/draft-eubanks-chimento-6man-00 > > Marshall> We intend to rev this shortly and comments would be > Marshall> appreciated. > > Margaret brought up a set of questions for LISP if it's going to send > 0 UDP checksums, basically surrounding what happens when a packet on > such a tunnel is corrupted and gets received by a node that either > does or does not understand the tunneling protocol. One of these > questions hinged on the expected behavior of receivers seeing a 0 UDP > checksum. > > > I suggest that your draft > > 1) Indicate whether receivers should be specially configured to accept > 0 checsums or whether all stacks should accept 0 checksums. > I personally think that receivers SHOULD require special configuration to accept UDP 0 checksums. Receivers that are acting as tunnel end points are likely to require special optimizations anyway. > 2) Adapt her questions as questions that IETF specs considering this > exception need to answer to make sure that their protocol will work > correctly in this mode. > OK, thanks, will look at this. Marshall > --Sam >
- Re: [lisp] IPv6 UDP checksum issue Noel Chiappa
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Christopher Morrow
- Re: [lisp] IPv6 UDP checksum issue Gorry Fairhurst
- Re: [lisp] IPv6 UDP checksum issue Lars Eggert
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Noel Chiappa
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- RE: [lisp] IPv6 UDP checksum issue Manfredi, Albert E
- Re: [lisp] IPv6 UDP checksum issue Lars Eggert
- Re: [lisp] IPv6 UDP checksum issue Lars Eggert
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Noel Chiappa
- Re: [lisp] IPv6 UDP checksum issue byzek
- Re: [lisp] IPv6 UDP checksum issue Rémi Denis-Courmont
- Re: [lisp] IPv6 UDP checksum issue Christopher Morrow
- Re: [lisp] IPv6 UDP checksum issue Pekka Savola
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Lars Eggert
- Re: [lisp] IPv6 UDP checksum issue Noel Chiappa
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Fred Baker
- Re: [lisp] IPv6 UDP checksum issue Benny Amorsen
- RE: [lisp] IPv6 UDP checksum issue Manfredi, Albert E
- Re: [lisp] IPv6 UDP checksum issue Brian E Carpenter
- Re: [lisp] IPv6 UDP checksum issue Marshall Eubanks
- Re: [lisp] IPv6 UDP checksum issue Lars Eggert
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Rémi Denis-Courmont
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Sam Hartman
- Re: [lisp] IPv6 UDP checksum issue Shane Amante
- Re: [lisp] IPv6 UDP checksum issue Marshall Eubanks
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Joel M. Halpern
- Re: [lisp] IPv6 UDP checksum issue Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Sam Hartman
- Re: [lisp] IPv6 UDP checksum issue - Flowlabel us… Rémi Després
- Re: [lisp] IPv6 UDP checksum issue - Flowlabel us… Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Rémi Denis-Courmont
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Brian E Carpenter
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Rémi Denis-Courmont
- Re: [lisp] IPv6 UDP checksum issue Marshall Eubanks
- Re: [lisp] IPv6 UDP checksum issue - Flowlabel us… Brian E Carpenter
- Flow label redux [Re: [lisp] IPv6 UDP checksum is… Brian E Carpenter
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Vince Fuller
- Re: Flow label redux [Re: [lisp] IPv6 UDP checksu… Joel M. Halpern
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Sam Hartman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Pekka Savola
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Sam Hartman
- Re: [lisp] IPv6 UDP checksum issue byzek
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Sam Hartman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Joel M. Halpern
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Joel M. Halpern
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: Flow label redux [Re: [lisp] IPv6 UDP checksu… Hesham Soliman
- Flow label collision [Flow label redux [Re: IPv6 … Brian E Carpenter
- Re: Flow label collision [Flow label redux [Re: I… Pekka Savola
- Re: Flow label collision [Flow label redux [Re: I… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Joel M. Halpern
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Luigi Iannone
- RE: [lisp] Flow label redux [Re: IPv6 UDP checksu… Templin, Fred L
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- RE: [lisp] Flow label redux [Re: IPv6 UDP checksu… Templin, Fred L
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: Flow label collision [Flow label redux [Re: I… Brian E Carpenter
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- RE: [lisp] Flow label redux [Re: IPv6 UDP checksu… Templin, Fred L
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Iljitsch van Beijnum
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Iljitsch van Beijnum
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Francis Dupont
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Iljitsch van Beijnum
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Shane Amante
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Marshall Eubanks
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Christopher Morrow
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Iljitsch van Beijnum
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… David Malone
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Francis Dupont
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Luigi Iannone
- Re: [lisp] Flow label redux sthaug
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Margaret Wasserman
- Re: [lisp] Flow label redux Margaret Wasserman
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Luigi Iannone
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Joel M. Halpern
- Re: [lisp] IPv6 UDP checksum issue Joel M. Halpern
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Sam Hartman
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Joel M. Halpern
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Luigi Iannone
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Sam Hartman
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Francis Dupont
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Luigi Iannone
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] IPv6 UDP checksum issue Margaret Wasserman
- Re: [lisp] IPv6 UDP checksum issue Luigi Iannone
- Re: [lisp] IPv6 UDP checksum issue Dino Farinacci
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Francis Dupont
- Re: [lisp] Flow label redux [Re: IPv6 UDP checksu… Luigi Iannone
- Re: [lisp] IPv6 UDP checksum issue Gorry Fairhurst