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
-------------------------------------------------------------------------------
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
-------------------------------------------------------------------------------
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:
======================================================================
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
=============================================================================