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Re: [Iot-directorate] [dhcwg] Iotdir last call review of draft-ietf-dhc-v6only-03

Lorenzo Colitti <lorenzo@google.com> Wed, 24 June 2020 08:45 UTC

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From: Lorenzo Colitti <lorenzo@google.com>
Date: Wed, 24 Jun 2020 17:45:34 +0900
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To: Ole Troan <otroan@employees.org>
Cc: Michael Richardson <mcr@sandelman.ca>, "Pascal Thubert (pthubert)" <pthubert@cisco.com>, "iot-directorate@ietf.org" <iot-directorate@ietf.org>, "dhcwg@ietf.org" <dhcwg@ietf.org>, "draft-ietf-dhc-v6only.all@ietf.org" <draft-ietf-dhc-v6only.all@ietf.org>, "last-call@ietf.org" <last-call@ietf.org>
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Subject: Re: [Iot-directorate] [dhcwg] Iotdir last call review of draft-ietf-dhc-v6only-03
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On Wed, 24 Jun 2020, 16:04 , <otroan@employees.org> wrote:

> > The key point of the option is that host does not need IPv4.
> > I agree with some commenters that it isn't obvious that it implies that
> NAT64
> > is available.  But, we have other signals for that, I think.
> >
> > NAT64 puts *no* requirements on the hosts (except that they be willing to
> > succeed network attachment without IPv4).
>
> Apart from forcing all IPv6 applications to be compliant with the NAT
> "architecture".
>

That's true, unfortunately. That said, I think it'ss also the only
transition mechanism that works without the host having an ipv4 address,
and thus the only one that is a step along the way to true IPv6-only hosts.

>

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