Reverse zone

[Daniel Roesen]

> If I owned 172.0.0.0, I would probably call my reverse zone 172.in-addr.arpa.

Correct.

> If I owned 172.25.0.0, I would probably call my reverse zone 172.25.in-addr.arpa.

Wrong. 25.172.in-addr.arpa.

> If I now have, for example:
> host 172.25.3.4, mask 255.255.240.0
> and
> host 172.20.0.101, mask 255.255.240.0
> what would be the proper ???.in-addr.arpa names of these reverse zones for these hosts.

See RFC 2317, but DON'T follow their suggestion to use "/" in the DNS name for
the sub-delegation. This is NOT a valid DNS character and will break some
resolvers. This suggestions is definately a bug in this RFC.


Best regards,
Daniel