I have a IP subset 203.195.112.62 to 203.195.112.120. The subnet mask is
255.255.255.0. I am running a Win2000 DNS server on my network. I add a
new zone to the DNS server, say ( abc.com ) and also I have created a
112.195.203.in-addr-arpa zone. I have added a A record to the domain name
zone ( says, www A 203.195.112.70 ) as well as the PTR record to the
in-addr-arpa zone.

Everything is well. When I lookup the domain name in the DNS server, it can
successfully resolve the IP address. However, when I use reverse-lookup the
IP address, it returns NONE an error message " Unable to resolve
203.195.112.70 " .

I do not have any idea what I have done wrong. Please kindly advise.

Thanks,
Chris

"Chris" <(E-Mail Removed)> wrote in message
news:eiWs%(E-Mail Removed)...
>I have a IP subset 203.195.112.62 to 203.195.112.120. The subnet mask is
>255.255.255.0. I am running a Win2000 DNS server on my network. I add a
>new zone to the DNS server, say ( abc.com ) and also I have created a
>112.195.203.in-addr-arpa zone. I have added a A record to the domain name
>zone ( says, www A 203.195.112.70 ) as well as the PTR record to the
>in-addr-arpa zone.

Has your ISP delegated teh 112.195.203.in-addr.arpa zone to your DNS?

> Everything is well. When I lookup the domain name in the DNS server, it
> can successfully resolve the IP address. However, when I use
> reverse-lookup the IP address, it returns NONE an error message " Unable
> to resolve 203.195.112.70 " .

This would only work if you EITHER had the delegation above OR your
were asking the DNS server holding this zone directly.

> I do not have any idea what I have done wrong. Please kindly advise.
>
> Thanks,
> Chris
>

> This would only work if you EITHER had the delegation above
> OR your were asking the DNS server holding this zone directly.

Also.. are we sure the "in-addr.arpa" zone was created as
a REVERSE zone and not as a FORWARD one ;-D ?