Reverse DNS RFCs and Recommendations

Mark Andrews marka at
Wed Nov 6 21:26:26 UTC 2013

In message <5964ADA4-8FCF-4FCE-9E64-7474CCAE57F2 at>, Cutler James R writes:
> On Nov 6, 2013, at 9:02 AM, Livingood, Jason
> <Jason_Livingood at> wrote:
> > Reverse DNS for (typical) residential customer IPv6 addresses is dead,
> > people just haven't come to grips with it just yet.;-)
> >
> >
> > When publicly-reachable services in home networks are created that may
> > be a different matter of course. But it is hard to imagine an ISP
> > automatically or dynamically generating reverse records for all the IPv6
> > addresses handed out to your average residential users.
> >
> > Jason

This discussion is currently NOT about ISP's generating PTR records
for IPv6 reverse.

It is about the automatic delegation of the DNS reverse namespace
to to servers under customer control when the CPE device requests
it as part of the Prefix Delegation request.  This is about a adding
KEY, DS and NS records at the delegation point in a secure manner.

Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at

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