RE: www.RT.com bad dns record

["Tony Hain" <alh-ietf () tndh net>]

Matt Palmer wrote:
> On Thu, Jul 07, 2016 at 06:36:23PM -0700, Ca By wrote:
> > On Thursday, July 7, 2016, Spencer Ryan <sryan () arbor net> wrote:
> >
> > > Dotted-quad notation is completely valid, and works fine.
> > >
> > > https://en.wikipedia.org/wiki/IPv6_address#Presentation
> > >
> > > http://[::ffff:37.48.108.112] loads fine in my browsers.
> >
> > It may be legit on your network, but people generally don't do
> > that.... If they publish a aaaa record, it usually has a legit v6
address in it.
> That is a legit IPv6 address.  That it won't work on a host that is
IPv6-only is a
> different issue, and one I agree is probably an unexpected and unwanted
> side effect.

This doesn't sound like a host issue, but a broken dns64 implementation. If
it checked the content of the aaaa response for an ::ffff... answer and
treated that as an A-only response, the host would never be involved.

Tony