SAP Filtering on Specific Types Blocks all SAP Traffic in Windows 2000 (301937)

The information in this article applies to:

Microsoft Windows 2000 Server SP1
Microsoft Windows 2000 Server SP2
Microsoft Windows 2000 Advanced Server SP1
Microsoft Windows 2000 Advanced Server SP2
Microsoft Windows 2000 Professional SP1
Microsoft Windows 2000 Professional SP2

This article was previously published under Q301937

SYMPTOMS

When you set SAP input filters in Windows 2000 RRAS, all SAP advertisements may be blocked. This occurs with the following configuration:

You are using "Input Filters" on the interface that is receiving SAP advertisements from the LAN.
On the filter action, you are using the Permit services except listed below option.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

   Date         Time   Version           Size     File name
   ----------------------------------------------------------
   08-Aug-2001  20:33  5.0.2195.4099     477,456  Ipxsnap.dll      
   30-May-2001  04:03  5.0.2195.3649       3,584  Spmsg.dll

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 3.

MORE INFORMATION

For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Modification Type:	Minor	Last Reviewed:	9/26/2005
Keywords:	kbHotfixServer kbQFE kbbug kbenv kbfix kbnetwork kbui kbWin2000PreSP3Fix kbWin2000sp3fix KB301937