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Q248629: No WINS Reverse Lookup Using RFC2317 Classless In-Addr.arpa

Article: Q248629
Product(s): Microsoft Windows NT
Version(s): WINDOWS:2000; winnt:4.0
Operating System(s): 
Keyword(s): kbnetwork
Last Modified: 10-AUG-2001

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The information in this article applies to:

- Microsoft Windows NT Server version 4.0 
- Microsoft Windows 2000 Server 
- Microsoft Windows 2000 Advanced Server 
- Microsoft Windows 2000 Datacenter Server 
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SYMPTOMS
========

When you use RFC2317 classless in-addr.arpa delegation, WINS reverse lookup does
not work for the delegated zone if the delegated zone resides on a different DNS
server.

CAUSE
=====

This issue can occur if you configure your DNS servers as described in the
following Microsoft Knowledge Base article:

  Q174419 How to Configure a Subnetted Reverse Lookup Zone on Windows NT

MORE INFORMATION
================

Classless in-addr.arpa delegation is a scheme to configure reverse IP address
lookup.

Normally, a reverse IP address lookup for the address 192.168.10.42 results in a
DNS query for 42.10.168.192.in-addr.arpa. With classless in-addr.arpa delegation
using a subnet mask of 255.255.255.192, this query may be substituted by a query
for 42.0-26.10.168.192.in-addr.arpa.

When you configure WINS reverse lookup for the delegated subzone, the DNS server
needs to determine the IP address from the query. With a query like
42.0-26.10.168.192.in-addr.arpa., the server is unable to determine the
corresponding IP address.

Additional query words:

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Keywords          : kbnetwork 
Technology        : kbWinNTsearch kbWinNT400search kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000DataServ kbwin2000DataServSearch kbwin2000Serv kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbwin2000ServSearch kbwin2000Search kbWinAdvServSearch kbWinDataServSearch
Version           : WINDOWS:2000; winnt:4.0
Issue type        : kbprb

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