Tcpip.sys Does Not Free Broadcast Packets That the TCP/IP Traffic Filter Driver Does Not Want

Article translations Article translations
Article ID: 262479 - View products that this article applies to.
This article was previously published under Q262479
This article has been archived. It is offered "as is" and will no longer be updated.
Expand all | Collapse all

On This Page


A Perfmon analysis of pool nonpaged bytes shows a slow, steady increase that can result in a system hang after several days. Also, an analysis of the nonpaged pool tags shows NDPt as the largest consumer of nonpaged pool.


Tcpip.sys does not free broadcast packets that the IP traffic filter driver does not want to forward.


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

Windows 2000

The English version of this fix should have the following file attributes or later:
   Date        Time    Version         Size    File name 
   05/12/2000  06:31p  5.0.2195.2096  308,720  Tcpip.sys
   05/12/2000  06:30p  5.0.2195.2096   16,208  Tdi.sys

Windows NT 4.0

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:;EN-US;CNTACTMS
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix should have the following file attributes or later:
   Date        Time    Size     File name  Platform
   04/06/2000  09:44p  174,448  Tcpip.sys  Intel
   04/06/2000  09:44p  310,704  Tcpip.sys  Alpha


Windows 2000

Microsoft has confirmed that this is a problem in Windows 2000. This problem was first corrected in Windows 2000 Service Pack 2.

Windows NT 4.0

Microsoft has confirmed that this is a problem in Windows NT 4.0.

More information

To enable pool tagging, use Gflags.exe. Click to select the Enable pool tagging check box, and then restart the computer. After you restart the computer, use Poolmon.exe or !poolused 2 in the kernel debugger to determine the high-consumption pool tags.


Article ID: 262479 - Last Review: October 26, 2013 - Revision: 2.0
Applies to
  • Microsoft Windows 2000 Server
  • Microsoft Windows NT Server 4.0 Standard Edition
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix kbwin2000presp2fix KB262479

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from