Consider the following scenario:

•	You are running a Microsoft Windows XP Service Pack 2 (SP2)-based computer or a Windows XP Service Pack 1 (SP1)-based computer that has the network address translation traversal (NAT-T) update installed.
•	The computer belongs to a domain.
•	You enable an Internet Protocol security (IPsec) policy on the computer.

In this scenario, all policies on the computer are refreshed, not just the IPsec policy. Additionally, if you set a short refresh time for the IPsec policy, network traffic increases in a domain that contains many client computers.

Note The NAT-T update is discussed in the following Microsoft Knowledge Base article:

Back to the top

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

Windows XP SP1 with the NAT-T update installed or Windows XP SP2

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows XP, Itanium-based Systems

   Date         Time   Version           Size     File name        Platform
   ---------------------------------------------------------------------------
   26-May-2005  05:34  5.1.2600.1694     510,976  Gptext.dll       IA-64
   25-May-2005  11:44  5.1.2600.1694     257,920  Ipsec.sys
   26-May-2005  05:34  5.1.2600.1694     891,904  Ipsecsnp.dll     IA-64
   26-May-2005  05:34  5.1.2600.1694     505,344  Ipsecsvc.dll     IA-64
   26-May-2005  05:34  5.1.2600.1694   1,225,728  Ipsmsnap.dll     IA-64
   26-May-2005  05:34  5.1.2600.1694     574,464  Oakley.dll       IA-64
   26-May-2005  05:34  5.1.2600.1694     317,952  Polstore.dll     IA-64
   26-May-2005  05:34  5.1.2600.1694     490,496  Rasmans.dll      IA-64
   26-May-2005  05:34  5.1.2600.1694      87,040  Winipsec.dll     IA-64
   24-Feb-2005  15:20  6.1.22.4          639,712  Updspapi.dll     IA-64
   26-May-2005  05:35  5.1.2600.1694     184,320  Wgptext.dll      x86
   26-May-2005  05:35  5.1.2600.1694     334,848  Wipsecsnp.dll    x86
   26-May-2005  05:35  5.1.2600.1694     159,744  Wipsecsvc.dll    x86
   26-May-2005  05:35  5.1.2600.1694     364,544  Wipsmsnap.dll    x86
   26-May-2005  05:35  5.1.2600.1694     257,536  Woakley.dll      x86
   26-May-2005  05:35  5.1.2600.1694      98,304  Wpolstore.dll    x86
   26-May-2005  05:35  5.1.2600.1694     163,840  Wrasmans.dll     x86
   26-May-2005  05:35  5.1.2600.1694      29,184  Wwinipsec.dll    x86

Windows XP Service Pack 2, 32-bit versions

   Date         Time   Version           Size     File name      
   -------------------------------------------------------------
   26-May-2005  18:00  5.1.2600.2685     183,296  Ipsecsvc.dll     

Windows XP Service Pack 1, 32-bit versions with the NAT-T update installed

   Date         Time   Version            Size    File name      
   -------------------------------------------------------------
   26-May-2005  00:17  5.1.2600.1694      74,368  Ipsec.sys
   26-May-2005  18:05  5.1.2600.1694     334,848  Ipsecsnp.dll     
   26-May-2005  18:05  5.1.2600.1694     159,744  Ipsecsvc.dll     
   26-May-2005  18:05  5.1.2600.1694     364,544  Ipsmsnap.dll     
   26-May-2005  18:05  5.1.2600.1694     257,536  Oakley.dll       
   26-May-2005  18:05  5.1.2600.1694      98,304  Polstore.dll     
   26-May-2005  18:05  5.1.2600.1694     163,840  Rasmans.dll      
   26-May-2005  18:05  5.1.2600.1694      29,184  Winipsec.dll     
   26-May-2005  18:05  5.1.2600.1694     184,320  Gptext.dll       
   24-Feb-2005  15:23  6.1.22.4          371,936  Updspapi.dll

Back to the top

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Back to the top

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Back to the top