RRAS Stops Routing After Encountering Zero Checksum from Neighboring Router

ID: Q162834

The information in this article applies to:

Microsoft Windows NT Server version 4.0
Microsoft Routing and Remote Access Service Update for Windows NT Server version 4.0

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/commserv/exec/feature/routing.asp

NOTE: Because the Microsoft Web site is constantly 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 kbinterop kbnetwork kbbug4.00 NTInterop ntnetserv ntprotocol nttcp ntrouter NTSrv
Version : WinNT:4.0
Platform : winnt
Issue type : kbbug