Re: Objection to draft-ietf-6man-rfc4291bis-07.txt
Fernando Gont <fgont@si6networks.com> Thu, 02 March 2017 05:10 UTC
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Subject: Re: Objection to draft-ietf-6man-rfc4291bis-07.txt
To: Iván Arce <iarce@fundacionsadosky.org.ar>, 6man WG <ipv6@ietf.org>
References: <20170223134026.GI5069@gir.theapt.org> <9277BC0B-04F3-4FC1-901E-F83A8F0E02D7@google.com> <58AF6429.70809@foobar.org> <902276E9-0521-4D4E-A42B-C45E64763896@google.com> <58AF726A.3040302@foobar.org> <F7C230DE-4759-4B78-ABF2-6799F85B3C62@google.com> <58B014F6.2040400@foobar.org> <6DA95097-8730-4353-A0C9-3EB4719EA891@google.com> <CAKD1Yr0qk_njAGnex_FZsYisCVw=eM8hXTr1v+wqvcfX_09wiQ@mail.gmail.com> <CAN-Dau0ohz3Wp55bs+eoFvSyoUjuKfjzKGSAsJS3wUt3z7TGtA@mail.gmail.com> <CAKD1Yr0wK8EiAbz39EZz-xZLtsSV2JROSzNECKtGo36Zc=RZ0Q@mail.gmail.com> <CAN-Dau2N-fv3o9o4807m_fbMktjC6hq28sMZhfECKg5cbb4g6Q@mail.gmail.com> <CAKD1Yr3tHm5x29w4L5KtKi7PqDHRxkPr6i9mJMtHLaPc2eM2GQ@mail.gmail.com> <8ce32e32-3f71-81fc-6bf5-763a4d85fed0@fundacionsadosky.org.ar>
From: Fernando Gont <fgont@si6networks.com>
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On 03/01/2017 02:03 PM, Iván Arce wrote: > El 1/3/17 a las 6:51, Lorenzo Colitti escribió: > >> >> Another thing I think we should avoid is to remove the fixed 64 >> barrier and open the door to having this debate again and again, >> once for every new IPv6-over-foo document and once for every new >> address configuration protocol (today we have SLAAC and DHCPv6, >> who knows what we'll have in the future). >> >> >> Which is why it time to get this right and saying it is now and >> forever 64 isn't right. >> >> >> Do you agree that a fixed boundary is useful or not? For 20 years the >> standards have guaranteed that 64 bits of IIDs were available to hosts >> that wanted to use them. If we make that barrier mobile, there will be >> no guarantee in the standards any more. Who should be allowed to set the >> boundary? An IPv6-over-foo document? An address configuration technology >> such as SLAAC? > > The last paragraph of section "2.5.1 Interface identifiers" in 4291 said: > > The details of forming interface identifiers are defined in the > appropriate "IPv6 over <link>" specification, such as "IPv6 over > Ethernet" [ETHER], and "IPv6 over FDDI" [FDDI]. > > The corresponding paragraph in rfc4291bis is: > > The details of forming interface identifiers are defined in other > specifications, such as "Privacy Extensions for Stateless Address > Autoconfiguration in IPv6" [RFC4941] or "A Method for Generating > Semantically Opaque Interface Identifiers with IPv6 Stateless Address > Autoconfiguration (SLAAC)"[RFC7217]. Specific cases are described in > appropriate "IPv6 over <link>" specifications, such as "IPv6 over > Ethernet" [RFC2464] and "Transmission of IPv6 Packets over ITU-T > G.9959 Networks" [RFC7428]. The security and privacy considerations > for IPv6 address generation is described in [RFC7721]. > > Don't you agree with that? To add to what Ivan said, the only text in the "IPv6 over <foo>" documents that has anything to do with the 64-bit IIDs is the description of how to come up with Modified-EUI64 identifiers. RFC7217, the recommended algorithm for forming IIDs, does not employ Modified EUI64 format identifiers, and formally updates all such RFCs. For instance, RFC7217 explicitly says: 2. The Interface Identifier is finally obtained by taking as many bits from the RID value (computed in the previous step) as necessary, starting from the least significant bit. We note that [RFC4291] requires that the Interface IDs of all unicast addresses (except those that start with the binary value 000) be 64 bits long. However, the method discussed in this document could be employed for generating Interface IDs of any arbitrary length, albeit at the expense of reduced entropy (when employing Interface IDs smaller than 64 bits). Thanks, -- Fernando Gont SI6 Networks e-mail: fgont@si6networks.com PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492
- Objection to draft-ietf-6man-rfc4291bis-07.txt Peter Hessler
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Job Snijders
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Peter Hessler
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Pierre Pfister
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt Manfredi, Albert E
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Smith
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Iván Arce
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt Manfredi, Albert E
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Job Snijders
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Smith
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt james woodyatt
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt james woodyatt
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt Manfredi, Albert E
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt james woodyatt
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Christopher Morrow
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt mohamed.boucadair
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Peter Hessler
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt mohamed.boucadair
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Sander Steffann
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt mohamed.boucadair
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Christopher Morrow
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt james woodyatt
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Christopher Morrow
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Pierre Pfister
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt Manfredi, Albert E
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Christopher Morrow
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Christopher Morrow
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Xing Li
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Xing Li
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Smith
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Smith
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Philip Homburg
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt james woodyatt
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Greg Hankins
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt sthaug
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt sthaug
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Greg Hankins
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt sthaug
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt otroan
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt otroan
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Dan Lüdtke
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt sthaug
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt David Farmer
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Iván Arce
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Iván Arce
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Smith
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Iván Arce
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Erik Kline
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Fernando Gont
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Tore Anderson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Iván Arce
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Tore Anderson
- Consensus? (was Re: Objection to draft-ietf-6man-… Wilco Baan Hofman
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Tore Anderson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Sander Steffann
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt JORDI PALET MARTINEZ
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt JORDI PALET MARTINEZ
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt JORDI PALET MARTINEZ
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Nick Hilliard
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mark Andrews
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Lorenzo Colitti
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Mikael Abrahamsson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Job Snijders
- RE: Objection to draft-ietf-6man-rfc4291bis-07.txt mohamed.boucadair
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt otroan
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Ca By
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Fred Baker
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Philip Homburg
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Brian E Carpenter
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Christian Huitema
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt 神明達哉
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Simon Hobson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Simon Hobson
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt otroan
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… Alexandre Petrescu
- Re: Objection to draft-ietf-6man-rfc4291bis-07.tx… otroan
- Re: Objection to draft-ietf-6man-rfc4291bis-07.txt Alexandre Petrescu