comcast ipv6 PTR

Wed Oct 9 17:00:36 UTC 2013

True, but the location information, at least the state, is quasi-helpful.

You may be right about PTR being a mistake, but I guess my mind approaches
it from a practical, quasi-GeoIP approach.

IPv6 seems to be somewhat chaotic in that realm.  Plus, with web
applications and services, accurate GeoIP has implications for security.

On Wed, Oct 9, 2013 at 11:49 AM, Chris Adams <cma at cmadams.net> wrote:

> Once upon a time, Robert Webb <rwebb at ropeguru.com> said:
> > But how would thet differ from the IPv4 address space which has PTR
> > records for all their IP's? Just the shear number they would have to
> > deal with in the IPv6 space?
>
> Oh, are you looking for auto-generated reverse for every address?
> That's not going to happen for IPv6 (and it turns out that it wasn't
> really a good idea for IPv4).  There's no reason to have reverse DNS
> unless it has meaning, and "12-34-56-78.rev.domain.net" isn't really all
> that useful.
>
> --
> Chris Adams <cma at cmadams.net>
>
>