Symptoms
Consider the following scenario:
- You establish an L2TP over IPSec connection. The connection is from a Windows Embedded CE 6.0 R3-based device to a server.
- The Internet Key Exchange (IKE) port of the device receives lots of packets per second. For example, the IKE port receives hundreds of packets per second.
In this scenario, the CPU usage of the device increases, and the device experiences performance issues.
Cause
This issue occurs because the IPSec module is resumed when each packet arrives. Therefore, the device's CPU usage increases, and the performance issues occurs.
Resolution
Software update information
A supported software update is now available from Microsoft as Windows Embedded CE 6.0 Platform Builder Monthly Update (November 2010). You can confirm this by scrolling to the "File information" section. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is as follows:
Product version-yymmdd-kbnnnnnn-processor type For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about how to obtain Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products
Prerequisites
This software update is supported only if all previously issued software updates for this product have also been applied.
Restart requirement
After you install this software update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
- On the Build menu, click Clean Solution, and then click Build Solution.
- On the Build menu, click Rebuild Solution.
You do not have to restart the computer after you apply this software update.
Update replacement information
This update does not replace any updates.
File information
The English version of this software update package 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.
Installer files
| File name | File size | Date | Time |
|---|---|---|---|
| Wincepb60-101130-kb2467615-armv4i.msi | 1,212,416 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-mipsii.msi | 1,190,400 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-mipsii_fp.msi | 1,190,912 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-mipsiv.msi | 1,190,912 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-mipsiv_fp.msi | 1,190,912 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-sh4.msi | 1,185,792 | 30-Nov-2010 | 22:51 |
| Wincepb60-101130-kb2467615-x86.msi | 1,143,296 | 30-Nov-2010 | 22:51 |
Files that are included in this hotfix package
| File name | File size | Date | Time | Path |
|---|---|---|---|---|
| Windows embedded ce 6.0_update_kb2467615.htm | 7,637 | 30-Nov-2010 | 22:16 | 101130_kb2467615 |
| Ipsec.lib | 861,156 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\Armv4i\Debug |
| Ipsec.lib | 529,152 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\Armv4i\Retail |
| Ipsec.lib | 818,146 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\Mipsii\Debug |
| Ipsec.lib | 507,860 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\Mipsii\Retail |
| Ipsec.lib | 818,400 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Mipsii_fp\Debug |
| Ipsec.lib | 508,056 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\Mipsii_fp\Retail |
| Ipsec.lib | 824,754 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Mipsiv\Debug |
| Ipsec.lib | 511,758 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Mipsiv\Retail |
| Ipsec.lib | 825,008 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Mipsiv_fp\Debug |
| Ipsec.lib | 511,960 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Mipsiv_fp\Retail |
| Ipsec.lib | 714,200 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Sh4\Debug |
| Ipsec.lib | 476,094 | 23-Nov-2010 | 16:54 | Public\Common\Oak\Lib\Sh4\Retail |
| Ipsec.lib | 696,730 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\X86\Debug |
| Ipsec.lib | 479,546 | 23-Nov-2010 | 16:53 | Public\Common\Oak\Lib\X86\Retail |
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
More Information
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates