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Re: [v6ops] [*SPAM* Score/Req: 3.9/3.3] Re: [*SPAM* Score/Req: 3.9/3.3] Re: reclassify 464XLAT as standard instead of info

Tim Chown <Tim.Chown@jisc.ac.uk> Thu, 21 September 2017 08:02 UTC

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From: Tim Chown <Tim.Chown@jisc.ac.uk>
To: Alexandre Petrescu <alexandre.petrescu@gmail.com>
CC: Ole Troan <otroan@employees.org>, "v6ops@ietf.org" <v6ops@ietf.org>
Thread-Topic: [v6ops] [*SPAM* Score/Req: 3.9/3.3] Re: [*SPAM* Score/Req: 3.9/3.3] Re: reclassify 464XLAT as standard instead of info
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Date: Thu, 21 Sep 2017 08:02:11 +0000
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Subject: Re: [v6ops] [*SPAM* Score/Req: 3.9/3.3] Re: [*SPAM* Score/Req: 3.9/3.3] Re: reclassify 464XLAT as standard instead of info
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Hi,

> On 21 Sep 2017, at 05:54, Alexandre Petrescu <alexandre.petrescu@gmail.com> wrote:
> 
> Le 20/09/2017 à 23:41, Ole Troan a écrit :
>>> But you cant have simultaneously CLAT and DHCPv6-PD on the same
>>> client. Because CLAT wants that to be a /64 prefix.  It will break
>>> when the client gets a /63.
>>> Moreover, design suggestions from CLAT assume that /64 is
>>> sufficient. That is wrong - /64 is not sufficient.
>>>> There are lots of cases where more than one solution to the same
>>>> problem becomes a standards track RFC.
>>> But one wont prohibit the other.
>>> CLAT prohibits DHCPv6-PD.
>> RFC6877 section 6.3 states the opposite.
> 
> Ole,
> 
> RFCs are one thing, and I agree with you.  And here we do RFCs.
> 
> But very much of what RFCs do is from implementations.
> 
> It's hard to claim RFC this and RFC that if on the other hand it is clear that Android blocks[*] DHCPv6 straight.  It looks like we would stick our head in the sand.
> 
> Androids are very numerous devices, and RFCs are less numerous.
> 
> Here, in this operations group, there is need that Android accepts these
> RFCs.
> 
> And we need that before we even talk moving an Android-only CLAT from
> INFORMATIONAL to something else.

There’s now CLAT support in various Windows platforms too, isn’t there?

I don’t think we should tangle up the address configuration debate with 464XLAT (as much as I’d personally like to see Android support DHCPv6..).

Tim

> Alex
> PS: to support the claim that Android explicitely blocks DHCPv6, I can
> provide pointers to public Google pages, numerous requests of DHCPv6
> integration in Android (to avoid need of 'rooting' the devices), the
> availability of DHCPv6 app in Android store that runs only on WiFi and
> must 'root', invitations from competitor OSs to bring DHCPv6 there
> instead of Android, and more.
> 
>> Ole
> 
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