Dynamic DNS Update Option Sent to DHCP Server Even If Disabled Globally

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This article was previously published under Q263550

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SYMPTOMS

Windows 2000-based clients that are using Dynamic Host Configuration Protocol (DHCP) may not receive IP addresses from non-Microsoft DHCP servers that do not recognize dynamic DNS update option 81. Disabling this option globally by setting the following value to 1 does not work:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DisableDynamicUpdate

This setting works correctly as a per-interface setting.

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CAUSE

This behavior occurs because of a problem in the DHCP client service. It sends the dynamic DNS update option to the DHCP server whether or not you have disabled it globally.

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RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 (http://support.microsoft.com/kb/260910/EN-US/ ) How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date        Time    Version        Size    File name
   -------------------------------------------------------
   05/18/2000  07:35p  5.0.2195.2096  87,312  Dhcpcsvc.dll

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