Input Filters over IPX WAN Routing May Fail to Filter Packets (187940)


The information in this article applies to:

  • Microsoft Windows NT Server 4.0 Terminal Server Edition
  • Microsoft Windows NT Server 4.0
This article was previously published under Q187940

SYMPTOMS

When input filters are set to deny packets coming into a computer running Windows NT Server 4.0 that is acting as a router, the Windows NT router may not properly filter out the packet types and may forward the packet to the other side of the router. Outbound filters on the computer running Windows NT Server work correctly and properly filter out packets.

CAUSE

IpxFwdInternalReceive detects that the packets should be dropped but does not communicate this to the IPX stack.

RESOLUTION

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS

Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
Modification Type:MinorLast Reviewed:7/16/2004
Keywords:kbbug kbfix KB187940
©2004 Microsoft Corporation. All rights reserved.