Re: [sunset4] An IPv4 sunset problem (?)

<mohamed.boucadair@orange.com> Wed, 22 August 2012 16:54 UTC

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From: mohamed.boucadair@orange.com
To: Simon Perreault <simon.perreault@viagenie.ca>, "sunset4@ietf.org" <sunset4@ietf.org>
Date: Wed, 22 Aug 2012 18:54:09 +0200
Thread-Topic: [sunset4] An IPv4 sunset problem (?)
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Subject: Re: [sunset4] An IPv4 sunset problem (?)
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Hi Simon,

This issue has been already documented in depth in http://tools.ietf.org/html/draft-ietf-behave-nat64-learn-analysis-03.

I'm not sure if there is a value to re-discuss this point in the gap analysis document.

Cheers,
Med
 

>-----Message d'origine-----
>De : sunset4-bounces@ietf.org 
>[mailto:sunset4-bounces@ietf.org] De la part de Simon Perreault
>Envoyé : mercredi 22 août 2012 17:54
>À : sunset4@ietf.org
>Objet : [sunset4] An IPv4 sunset problem (?)
>
>Sunsetters,
>
>Recently there has been discussion in v6ops about a problem 
>that arises 
>when a network infrastructure featuring NAT64+DNS64 is used by 
>IPv6-only 
>as well as dual-stack hosts. The problem is that you want the 
>IPv6-only 
>hosts to use the DNS64 but not the dual-stack hosts.
>
>This is a well-known problem that has been discussed in behave and for 
>which there is a solution that involves the hosts 
>(draft-ietf-behave-nat64-discovery-heuristic), and another 
>that involves 
>only the network (provision different DNS resolver addresses to 
>IPv6-only and dual-stack hosts). Those solutions may not apply in many 
>cases: the first solution requires that all hosts be modified, 
>while the 
>second solution requires that one be able to differentiate IPv6-only 
>from dual-stack hosts.
>
>Question for the WG: should this be discussed in 
>draft-ietf-sunset4-gapanalysis? If so, we would appreciate additional 
>input. Additional solution ideas would also be appreciated...
>
>Thanks,
>Simon
>-- 
>DTN made easy, lean, and smart --> http://postellation.viagenie.ca
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