Another systemd-resolved problem in 17.04

[Karl Auer]

On Thu, 2017-06-22 at 12:11 +0100, Chris Green wrote:
> On Thu, Jun 22, 2017 at 07:02:39PM +1000, Karl Auer wrote:
> > It is barely possible that the nameserver is refusing to answer
> > queries that arrive over IPv6 transport. If you control that
> > nameserver you should certainly check its configuration. You could
> > also see what happens when you query the same nameserver on its
> > IPv4 address or (if it has one) its non-link-local address.
> > 
> So are you saying that the nameserver that's responding with REFUSE
> is 'out there' on the internet somewhere?  If so I'm surprised as I
> have IPV6 support turned off in my router so I don't understand how
> IPV6 packets can be sent and received at all.

I'm saying that you clearly ARE communicating over IPv6 in spite of
your best efforts. And the nameserver you are communicating with has
the link-local address you mentioned. And it is possible, though
unlikely, that the nameserver is refusing service based on the query
transport - IPv6. It is more likely that it is configured to provide
service only to a restricted set up IP addresses, and the IPv6 address
isn't in that set.

But to be honest it's all a bit mysterious :-)

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://twitter.com/kauer389

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