Re: [Autoconf] Using DHCPv6 without link-local? Support only EUI-64interfaces?
Alexandru Petrescu <alexandru.petrescu@gmail.com> Mon, 02 August 2010 09:00 UTC
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Date: Mon, 02 Aug 2010 11:00:34 +0200
From: Alexandru Petrescu <alexandru.petrescu@gmail.com>
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Subject: Re: [Autoconf] Using DHCPv6 without link-local? Support only EUI-64interfaces?
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Le 31/07/2010 13:19, Teco Boot a écrit : > Chris, thanks for sharing your opinion. > > On using DHCP, the draft charter, workitem 1, specifies usage of > DHCPv6. When thinking on how this could work, I want to know what > requirements are. Right, me too, I think a good question is whether we agree the DHCP Server sits on a sort of a fixed Gateway to which nodes attach: ---------- ---------- | Fixed | | Fixed | |DHCPServer| |DHCPServer| ---------- ---------- | | | Fixed Network O Or is it: | ---------- o nodes o | Fixed | |DHCPRelay | o o o ---------- | | O o nodes o o o o > Did I catch "un-touched DHCPv6" at the meeting? I think I did hear that too... I think it could be good idea. Alex > On RFC 3091 and dupont-ipv6-rfc3041harmful, the recommendations are > in RFC 4901. > > The change on site duplicates for well generated CGA or private IIDs > is close to zero. I think duplicate address problems with DHCP > servers on CPE devices are far larger than self-generated IIDs > because reboots and non-volatile storage or lazy write. > > Using DHCP provided addresses could provide more efficient > compression with RFC 5444. EUI-64 needs 3 (same OUI in homogenous > MANET) or 8 octets. CGA or private IIDs needs 8 octets. Centrally > managed addresses could result in less, with 1 octet at a minimum. > This would be a good reason to use the more centralized approach. > > Teco. > > > Op 30 jul 2010, om 15:52 heeft Dearlove, Christopher (UK) het > volgende geschreven: > >> Teco >>> Question: can we get around a MUST in a standards track RFC? I >>> don't think so. >> >> There is the "don't use that RFC, use another one - or none" >> approach. >> >>> Second question, on first item in charter: do we limit ourself >>> to MANET routers that has modified EUI-64 link-locals? >> >> Definitely not. There are issues with EUI-64. One of these is >> privacy/security. If I use a device today, and use the same device >> at a different time and in a different place, it's still clearly >> identified as the same device. That can be a problem. >> >> There's a discussion in RFC 3041. That's obsoleted by RFC 4941. I >> mention the older version as someone was concered enough to write >> draft-dupont-ipv6-rfc3041harmful-05.txt that argued against RFC >> 3041 (but never made it to RFC). My point is, there are issues, >> and people of goodwill and expertise disagree on the subject. >> Probably because of different backgrounds and assumptions. One size >> does not fit all. >> >> -- Christopher Dearlove Technology Leader, Communications Group >> Networks, Security and Information Systems Department BAE Systems >> Advanced Technology Centre West Hanningfield Road, Great Baddow, >> Chelmsford, CM2 8HN, UK Tel: +44 1245 242194 Fax: +44 1245 242124 >> >> BAE Systems (Operations) Limited Registered Office: Warwick House, >> PO Box 87, Farnborough Aerospace Centre, Farnborough, Hants, GU14 >> 6YU, UK Registered in England& Wales No: 1996687 >> >> ******************************************************************** >> >> >> This email and any attachments are confidential to the intended >> recipient and may also be privileged. If you are not the intended >> recipient please delete it from your system and notify the sender. >> You should not copy it or use it for any purpose nor disclose or >> distribute its contents to any other person. >> ******************************************************************** >> > >> >> > _______________________________________________ Autoconf mailing list > Autoconf@ietf.org https://www.ietf.org/mailman/listinfo/autoconf >
- [Autoconf] Using DHCPv6 without link-local? Suppo… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Dearlove, Christopher (UK)
- Re: [Autoconf] Using DHCPv6 without link-local? S… Templin, Fred L
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Dearlove, Christopher (UK)
- Re: [Autoconf] Using DHCPv6 without link-local? S… Alexandru Petrescu
- Re: [Autoconf] Using DHCPv6 without link-local? S… Alexandru Petrescu
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Alexandru Petrescu
- Re: [Autoconf] Using DHCPv6 without link-local? S… Dearlove, Christopher (UK)
- Re: [Autoconf] Using DHCPv6 without link-local? S… Dearlove, Christopher (UK)
- Re: [Autoconf] Using DHCPv6 without link-local? S… Templin, Fred L
- Re: [Autoconf] Using DHCPv6 without link-local? S… Ulrich Herberg
- Re: [Autoconf] Using DHCPv6 without link-local? S… Templin, Fred L
- Re: [Autoconf] Using DHCPv6 without link-local? S… Ulrich Herberg
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Alexandru Petrescu
- Re: [Autoconf] Using DHCPv6 without link-local? S… Ulrich Herberg
- Re: [Autoconf] Using DHCPv6 without link-local? S… Henning Rogge
- Re: [Autoconf] Using DHCPv6 without link-local? S… Ulrich Herberg
- Re: [Autoconf] Using DHCPv6 without link-local? S… Rogge Henning
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Henning Rogge
- Re: [Autoconf] Using DHCPv6 without link-local? S… Teco Boot
- Re: [Autoconf] Using DHCPv6 without link-local? S… Carlos Jesús Bernardos Cano
- Re: [Autoconf] Using DHCPv6 without link-local? S… Alexandru Petrescu
- Re: [Autoconf] Using DHCPv6 without link-local? S… Joe Macker