SYMPTOMS
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:
818043 L2TP/IPsec NAT-T update for Windows XP and Windows 2000
RESOLUTION
Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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.
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 tool 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