Microsoft KB Archive/173240

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Knowledge Base

Article ID: 173240

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q173240


When your multihomed Windows NT computer sends Simple Network Management Protocol (SNMP) traps, the IP address of the first interface is included as the originating host in the Agent ID field of the Trap Protocol Data Unit (PDU), even though the SNMP traps are being sent to the network on a different interface.



Microsoft has confirmed this to be a problem in Windows NT version 4.0.

A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.


The Trap PDU is issued by an SNMP entity on behalf of a network management agent application. It is used to notify the management station of a significant event. The Agent ID field is included in the Trap PDU, and it should contain the IP address of the object generating the trap.

For additional information, please see the following article in the Microsoft Knowledge Base:

ARTICLE-ID: 172879
TITLE : Simple Network Management Protocol (SNMP) and Traps

Additional query words: multi-homed

Keywords: kbhotfixserver kbqfe kbbug kbgrpdsnet kbnetwork kbsdkplatform kbsnmp KB173240