Microsoft KB Archive/162834

= RRAS stops routing after encountering zero checksum from neighboring router =

Article ID: 162834

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Routing and Remote Access Service Update for Windows NT Server 4.0

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This article was previously published under Q162834





SYMPTOMS
Your Routing and Remote Access Service (RRAS) Server may stop routing network between segments and you may receive some event log messages regarding checksum errors from neighbors.



CAUSE
One of your neighboring routers has sent a packet containing something other than ffff. When the checksum of a packet equals zero, which is illegal, RRAS expects to receive ffff.



STATUS
Microsoft has confirmed this to be a problem in Routing and Remote Access Update for Windows NT Server version 4.0. This problem was corrected in the Routing & Remote Access Service Hotfix Update. You can obtain this update from Microsoft's World Wide Web Site on the Internet at the following location:

http://www.microsoft.com/ntserver/techresources/commnet/default.asp#routingandras

NOTE: Because the Microsoft Web site is regularly updated, the site address may change without notice. If this occurs, link to the Microsoft home page at the following address:

http://www.microsoft.com/

Additional query words: protocol

Keywords: kb3rdparty kbbug kbinterop kbnetwork KB162834

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