Re: comcast ipv6 PTR

[Bjørn Mork <bjorn () mork no>]

Brielle Bruns <bruns () 2mbit com> writes:

> Sent from my iPhone
>
> On Oct 15, 2013, at 8:59 AM, Bjørn Mork <bjorn () mork no> wrote:
>
> > Doug Barton <dougb () dougbarton us> writes:
> > > On 10/14/2013 07:47 PM, John Levine wrote:
> > > > Doing rDNS on random hosts in IPv6 would be very hard.
> > >
> > > *    PTR    generic.reverse.record.isp.net.
> > >
> > > can we move on now?
> >
> > Sure. If you can explain how that is going to resolve forward.
>
> Wildcard A records like have been done forever (even if not exactly recommended)?

Maybe.  Personally I put a lot more trust into an IPv6 address with no
PTR than an IPv6 address with a PTR not resolving back to the same
address.


Bjørn