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Re: [v6ops] Supporting IPv6-only Networks with NAT64 and DNS64 section of draft-ietf-v6ops-rfc6555bis-01

Fred Baker <fredbaker.ietf@gmail.com> Thu, 29 June 2017 05:30 UTC

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From: Fred Baker <fredbaker.ietf@gmail.com>
In-Reply-To: <20170629051741.38EB67D005C0@rock.dv.isc.org>
Date: Thu, 29 Jun 2017 07:30:43 +0200
Cc: Erik Kline <ek@google.com>, IPv6 Ops WG <v6ops@ietf.org>
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To: Mark Andrews <marka@isc.org>
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Subject: Re: [v6ops] Supporting IPv6-only Networks with NAT64 and DNS64 section of draft-ietf-v6ops-rfc6555bis-01
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On Jun 29, 2017, at 7:17 AM, Mark Andrews <marka@isc.org> wrote:
> The real problem is the choice to promote DNS64/NAT64.  Just because
> it works "well enough" in the cellular envionment *where there is
> little to no DNSSEC being used (read as epsilon)*, that is not a
> reason to promote it as a *general* solution for IPv6-only networks.
> Doing that will come back to bite us in the future.

I'm not sure I disagree, in the sense that the preferred approach would be to move the application to IPv6. That said, isn't the point that it hasn't yet been moved but the network is? The only option other than "translate" is "don't turn off IPv4". I think that will be a common solution. But when the network is turning off IPv4 and an IPv6-capable option isn't available for an application, I think they're not going to ask your opinion. They're going to do something that works for them.

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