Re: Connectivity to an IPv6-only site

[Jim Burwell <jimb () jsbc cc>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
 
On 4/23/2010 05:42, Jared Mauch wrote:
> On Apr 23, 2010, at 5:49 AM, Dave Hart wrote:
>
> > On Fri, Apr 23, 2010 at 08:26 UTC, Steve Bertrand
> > <steve () ibctech ca> wrote:
> > > - in WHOIS, I have ns1 and ns2.onlyv6.com listed as the
> > > authoritative name servers
> > >
> > > - both of these servers *only* have IPv6 addresses
> >
> > Which seems a bit far afield from reality to me.  Yes, there are
> > lots of folks with IPv6 connectivity and v4-only recursive DNS
> > servers.  I don't think ISPs will have problems setting aside a
> > handful of IPv4 addresses for authoritative DNS infrastructure to
> > work around this until v6 transport in recursive DNS servers is
> > common enough.
>
> Not really, having your nameservers be IPv6 enabled is a reasonable
> thing to do.
>
> FYI: on comcast I see SERVFAIL, meaning their recursives do not
> have IPv6 transport.
>
> (I know we have that at my employer on our customer-facing
> recursives).
>
> ; <<>> DiG 9.6.0-APPLE-P2 <<>> any www.onlyv6.com. ;; global
> options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status:
> SERVFAIL, id: 54773 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0,
> AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION: ;www.onlyv6.com.            IN    ANY
>
> ;; Query time: 1605 msec ;; SERVER: 68.87.72.130#53(68.87.72.130)
> ;; WHEN: Fri Apr 23 08:41:08 2010 ;; MSG SIZE  rcvd: 32
You'll see a lot of this.  I've done my own little tests on a few
friends' systems, and on public wifi, etc, establishing some sort of
IPv6 connectivity, and trying to resolve a subdomaiin of mine with a
IPv6 only DNS server.  Many ISP recursive NS don't have IPv6 transport
yet, so they choke getting to my NS.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
 
iEYEARECAAYFAkvRnmUACgkQ2fXFxl4S7sTfJwCfaKEB8juoXkHsgX7N+F+HNrEC
PDwAoJm+Hn8NhBi6LKcX00T9JTEA35ma
=nzM5
-----END PGP SIGNATURE-----