Re: [sunset4] New Version Notification for draft-palet-sunset4-ipv6-ready-dns-00.txt

Stephane Bortzmeyer <bortzmeyer@nic.fr> Mon, 27 November 2017 09:50 UTC

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Date: Mon, 27 Nov 2017 10:50:23 +0100
From: Stephane Bortzmeyer <bortzmeyer@nic.fr>
To: Joe Abley <jabley@hopcount.ca>
Cc: Fred Baker <fredbaker.ietf@gmail.com>, "v6ops@ietf.org WG" <v6ops@ietf.org>, 6man@ietf.org, Daniel Karrenberg <daniel@karrenberg.net>, dnsop@ietf.org, sunset4@ietf.org
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Subject: Re: [sunset4] New Version Notification for draft-palet-sunset4-ipv6-ready-dns-00.txt
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On Sat, Nov 25, 2017 at 06:45:52PM -0500,
 Joe Abley <jabley@hopcount.ca> wrote 
 a message of 28 lines which said:

> I think it's uncontroversial to suggest without citation that not
> all resolvers used by end-users today are v6-capable,

See this experience
<https://labs.ripe.net/Members/stephane_bortzmeyer/how-many-ripe-atlas-probes-can-resolve-ipv6-only-domain-names>.
It was three years ago, we can re-run it but I'm afraid it will show
that it is still the case.

Quote: "As expected, the success rate with IPv6-only domain names
(around two thirds) is much lower than with "mixed" domain names. We
are not yet ready to switch off IPv4 . If you serve a domain name only
on IPv6 name servers, you will get less traffic (and probably less
spam, too)."