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Can you ping all the other subnets from each direction? By IP and name? I dont think you would need a reverse look up zone.
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Can you ping all the other subnets from each direction? By IP and name? I dont think you would need a reverse look up zone.

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This is correct - for future reference if someone is reading this question with the same problem, with reverse DNS in windows 2008 you can only specify /8, /16, or /24 subnets (or 255.0.0.0, 255.255.0.0, or 255.255.255.0 subnets respectively).<br />
<br />
Thus even though our 172.17.2.150 /23 (255.255.254.0) contains addresses from 172.17.3.0 through 172.17.4.255, I had to create two seperate reverse lookup zones:<br />
<br />
0.4.17.172.in-addr.arpa <br />
and<br />
0.3.17.172.in-addr.arpa<br />
<br />
Did that, and right away PTR records started getting created.
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This is correct - for future reference if someone is reading this question with the same problem, with reverse DNS in windows 2008 you can only specify /8, /16, or /24 subnets (or 255.0.0.0, 255.255.0.0, or 255.255.255.0 subnets respectively).

Thus even though our 172.17.2.150 /23 (255.255.254.0) contains addresses from 172.17.3.0 through 172.17.4.255, I had to create two seperate reverse lookup zones:

0.4.17.172.in-addr.arpa
and
0.3.17.172.in-addr.arpa

Did that, and right away PTR records started getting created.

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Hi,<br />
We have a domain that used to be a flat network (172.17.2.0 /24), but was recently changed to include other subnets too, including 172.17.3.0/23 and 172.17.5.0/24.<br />
<br />
I created a single reverse DNS zone called:<br />
0.17.172.in-addr.arpa <br />
But when i try to go to a forward DNS Host (A) record and update its PTR (for a host that's now on the 172.17.3.0/24 subnet), i get the error: &quot;Warning: The associated PTR record cannot be created, probably because the referenced reverse lookup zone cannot be found&quot;.<br />
<br />
What am I doin wrong?
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Hi,
We have a domain that used to be a flat network (172.17.2.0 /24), but was recently changed to include other subnets too, including 172.17.3.0/23 and 172.17.5.0/24.

I created a single reverse DNS zone called:
0.17.172.in-addr.arpa 
But when i try to go to a forward DNS Host (A) record and update its PTR (for a host that's now on the 172.17.3.0/24 subnet), i get the error: "Warning: The associated PTR record cannot be created, probably because the referenced reverse lookup zone cannot be found".

What am I doin wrong?

windows 2008 reverse dns zone for whole subnet?

The Domain Name System (DNS) is a hierarchical, globally distributed system responsible for associating the name of a computer, service or other resource into an IP address for connecting to the Internet or a private network. Most prominently, it translates domain names to the numerical IP addresses needed for the purpose of computer services and devices worldwide.