Reverse lookup for classless networks

[Nagesh Thati]

Thanks Mark,
But is there any other way without using any CNAMEs?

On Thu, Dec 27, 2018 at 4:45 PM Mark Andrews <marka at isc.org> wrote:

> Because it requires the parent zone with the CNAME records to also be set
> up which maps the well known query names to the alternate names.
>
>
> --
> Mark Andrews
>
> On 27 Dec 2018, at 21:01, Nagesh Thati <tcpnagesh at gmail.com> wrote:
>
> Hello,
> I have been trying to make the reverse zones for the classless networks. I
> was able to create such zones by following an online guide. The guide says
> to create a reverse zone for a classless network as following,
> Network: *28.0.0.0/27 <http://28.0.0.0/27>*
> Reverse Zone: *0-27.128.0.0.28.in-addr.arpa.*
> Example PTR record: *130.0-27.128.0.0.28.in-addr.arpa. PTR
> test.example.com <http://test.example.com>.*
>
> Now the zone is up, but I have problem in looking up the IP address using
> the below method,
> *dig @localhost -x 28.0.0.130*
>
> While the above lookup is not working, the below method is working,
> *> dig @localhost 130.0-27.128.0.0.28.in-addr.arpa. PTR +short*
> *> 3G00002Phone.adparent.com <http://3G00002Phone.adparent.com>.*
>
>
>
> *Now can someone tell me why the first method is not working, will my
> reverse zone work properly in the real world?*
> Thanks for your help.
>
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