Microsoft KB Archive/262104

= DHCP Custom Options Are Not Sent to DHCP Clients Using DHCP Inform Packets =

Article ID: 262104

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q262104



SYMPTOMS
Dynamic Host Configuration Protocol (DHCP) clients that request additional option information from a Windows NT 4.0 (any service pack) DHCP server by issuing a DHCP Inform packet, do not receive the additional information from the DHCP server.



CAUSE
This behavior occurs because Windows NT 4.0 does not support DHCP Inform packets. When a client sends a DHCP Inform packet, the Windows NT 4.0 DHCP Server ignores the DHCP Inform packet because it does not know how to process it.



RESOLUTION
To configure custom options to be sent to a client from a Windows NT 4.0 DHCP server, the client must request the options in the Parameter Request List of the DHCP Request packet or upgrade the DHCP server to Windows 2000 DHCP server.



MORE INFORMATION
Microsoft Windows 2000 DHCP server does support DHCP Inform packets.

Additional query words: DHCPInform rfc 2132

Keywords: kbenv kbprb KB262104

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