[dns-operations] IPv6 only for nameservers

[Tom Blackwood]

That sounds sad.

Many stub resolvers are installed in small hardware device (for example, a
home router), that may not support IPv6.

On Tue, Dec 31, 2019 at 5:37 PM Shane Kerr <shane at time-travellers.org>
wrote:

> Stephane and all,
>
> On 30/12/2019 16.01, Stephane Bortzmeyer wrote:
> > On Mon, Dec 30, 2019 at 05:18:01PM +0300,
> >   Anand Buddhdev <anandb at ripe.net> wrote
> >   a message of 17 lines which said:
> >
> >> If your domain's authoritative name servers have only IPv6
> >> addresses, then your domain will not be resolvable by many resolvers
> >> on the Internet, because many of them only have IPv4 connectivity.
> >
> > This was in 2014 but I'm not sure it changed a lot since:
> >
> >
> https://labs.ripe.net/Members/stephane_bortzmeyer/how-many-ripe-atlas-probes-can-resolve-ipv6-only-domain-names
>
> I just re-ran a similar test and got about a 71% success rate:
>
> https://atlas.ripe.net/measurements/23732712/
>
> While technically slightly better than 67% success rate measured 5 years
> ago, to me this means that running an IPv6-only name server it is
> basically not possible.
>
> I also ran a version using IPv6-enabled probes, and got an 89% success
> rate:
>
> https://atlas.ripe.net/measurements/23734035
>
> I think that even 90% is still not good enough to allow you to run an
> IPv6-only name server, at least for general Internet usage. 😞
>
> Cheers,
>
> --
> Shane
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>
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