Microsoft KB Archive/886188

= The IPSec Policy Agent may log EventID 156 in the System log of the client computer after you update an IPsec policy in Windows 2000 =

Article ID: 886188

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Datacenter Server

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SYMPTOMS
In Microsoft Windows 2000, after you update an IPsec policy, the IPSec Policy Agent may log the following event in the System log of the client computer: Source: PolicyAgent

EventID: 156

Description: Matching filter exists in filter list.

This problem may occur when the following conditions are true:
 * You change a security rule's filter action. For example, you change the filter action from Request Security to Require Security.
 * You update the rule's IP filter list.
 * You perform these two operations at the same time for the same rule.



WORKAROUND
To work around this problem, do not perform the two operations that are mentioned in the &quot;Symptoms&quot; section at the same time. For example, first change the rule's filter action. Then, after the client computer updates the IPsec policy, update the rule's IP filter list.

Keywords: kbtshoot kbprb KB886188

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