Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - are changes in dualstack hosts acceptable or not?
Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 26 July 2008 18:53 UTC
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Message-ID: <488B4B8B.3050701@gmail.com>
Date: Sun, 27 Jul 2008 04:06:35 +1200
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
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To: marcelo bagnulo braun <marcelo@it.uc3m.es>
CC: Rémi Denis-Courmont <rdenis@simphalempin.com>, Jari Arkko <jari.arkko@piuha.net>, Dave Thaler <dthaler@windows.microsoft.com>, 'IPv6 Operations' <v6ops@ops.ietf.org>
Subject: Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - are changes in dualstack hosts acceptable or not?
References: <4889EAD2.8060809@it.uc3m.es> <200807251911.16835.rdenis@simphalempin.com> <4889FD50.4060406@it.uc3m.es>
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On 2008-07-26 04:20, marcelo bagnulo braun wrote: > Rémi Denis-Courmont escribió: >> Le vendredi 25 juillet 2008 18:01:38 marcelo bagnulo braun, vous avez >> écrit : >> >>> Now, the nice thing about requirements is that when you read >>> them into detail, they can be interpreted in both ways. >>> >> >> No. A dual-stack host is NOT a v4-only host. If you read the >> requirements to the letter, nothing excludes changes to dual-stack >> nodes. But I humbly think the real question is not what the current >> requirements say. >> >> >>> So, the question is: is a dual stack host a v6 host (i.e. changes are >>> acceptable) or is it a v4 host (i.e. changes are not acceptable)? >>> >> >> Regardless of the current requirements, I would argue it is not >> acceptable that dual-stack nodes need to be modified, for the exact >> same reason as it is not acceptable that IPv4-only nodes need to be >> modified: deployment would be highly impractical. >> > > do you think it is acceptable to require some manual configuration in > them to make them work? I think we need to follow the 'first, do no harm' principle to get this right in the requirements. In other words, the situation MUST be no worse for unmodified RFC2460/3484 hosts than it is today. Of course it may be better - otherwise we wouldn't be here at all. If that requires configuration, it seems OK to me. After all, we have to be realistic. Brian
- draft-ietf-v6ops-nat64-pb-statement-req-00 - are … marcelo bagnulo braun
- Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - … Rémi Denis-Courmont
- Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - … marcelo bagnulo braun
- RE: draft-ietf-v6ops-nat64-pb-statement-req-00 - … teemu.savolainen@nokia.com
- Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - … Rémi Després
- Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - … Brian E Carpenter
- Re: draft-ietf-v6ops-nat64-pb-statement-req-00 - … Iljitsch van Beijnum