Microsoft KB Archive/300460

= &quot;Fatal System Error&quot; Error Message When You Use IP-in-IP Tunnel =

Article ID: 300460

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Advanced Server

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This article was previously published under Q300460



SYMPTOMS
When you use a Windows 2000 IP-in-IP tunnel, you may receive the following Stop Screen error message:


 * Fatal System Error: 0x000000d1 (0x00000006,0x00000002,0x00000000,0xF06D27CA)



CAUSE
This behavior is caused by a software defect.

This behavior occurs only if the tunnel becomes non-operational during the process of routing packets -- for example, if your Internet connection is lost. When you attempt to send an ICMP Destination Unreachable-type message, the server may fail with the Stop Screen error message listed in the &quot;Symptoms&quot; section of this article.



WORKAROUND
To work around this issue, attempt to use a virtual private network (VPN) or an IP Security Protocol (IPSEC) tunnel instead of an IP-in-IP tunnel.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbenv kberrmsg kbfix kbprb kbwin2000presp3fix KB300460

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