Symptoms
Consider the following scenario:
-
You have a Windows Embedded Compact 7-based device that connects to a network.
-
The device is assigned a valid IP address by a Dynamic Host Configuration Protocol (DHCP) server. The DHCP server is configured not to send its default gateway.
-
You disconnect the device from the network and then reconnect the device to the same network.
In this scenario, the device sends a DHCP discovery message instead of a DHCP request message to the DHCP server. Additionally, a full DORA (Discovery, Offer, Request, Acknowledgment) DHCP process occurs.
Cause
This issue occurs because the device tries to ping the default gateway when it reconnects to the network. When the default gateway is not configured on the subnet or is inaccessible, the device responds as if the subnet is changed and therefore forces the sending of a DHCP discovery message.
Resolution
Software update information
A supported software update is now available from Microsoft as Windows Embedded Compact 7 Monthly Update (April 2012). In the "File information" section, the package file name contains the processor type.
Note This Windows Embedded Compact 7 Monthly Update is available for download from the following Microsoft Download Center website:
Windows Embedded Compact 7 Updates
Prerequisites
This update is supported only if all previously issued updates for this product have also been installed.
Restart requirement
After you apply this 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 other 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.
Files that are included in this update package
|
File name |
File size |
Date |
Time |
Path |
|---|---|---|---|---|
|
Dhcp.dll |
118,784 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Checked |
|
Dhcp.map |
110,146 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Checked |
|
Dhcp.rel |
38,656 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Checked |
|
Dhcp.dll |
167,936 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Debug |
|
Dhcp.map |
114,176 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Debug |
|
Dhcp.rel |
39,381 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Debug |
|
Dhcp.dll |
53,248 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Retail |
|
Dhcp.map |
40,780 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Retail |
|
Dhcp.rel |
14,238 |
03-Apr-2012 |
17:43 |
Public\Common\Oak\Target\Armv5\Retail |
|
Dhcp.dll |
118,784 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Checked |
|
Dhcp.map |
110,146 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Checked |
|
Dhcp.rel |
38,656 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Checked |
|
Dhcp.dll |
167,936 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Debug |
|
Dhcp.map |
114,176 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Debug |
|
Dhcp.rel |
39,381 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Debug |
|
Dhcp.dll |
53,248 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Retail |
|
Dhcp.map |
40,780 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Retail |
|
Dhcp.rel |
14,238 |
03-Apr-2012 |
17:45 |
Public\Common\Oak\Target\Armv6\Retail |
|
Dhcp.dll |
114,688 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Checked |
|
Dhcp.map |
110,063 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Checked |
|
Dhcp.rel |
38,627 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Checked |
|
Dhcp.dll |
167,936 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Debug |
|
Dhcp.map |
114,176 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Debug |
|
Dhcp.rel |
39,381 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Debug |
|
Dhcp.dll |
53,248 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Retail |
|
Dhcp.map |
40,780 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Retail |
|
Dhcp.rel |
14,238 |
03-Apr-2012 |
17:46 |
Public\Common\Oak\Target\Armv7\Retail |
|
Dhcp.dll |
143,360 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Checked |
|
Dhcp.map |
107,860 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Checked |
|
Dhcp.rel |
126,990 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Checked |
|
Dhcp.dll |
188,416 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Debug |
|
Dhcp.map |
111,639 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Debug |
|
Dhcp.rel |
154,221 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Debug |
|
Dhcp.dll |
61,440 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Retail |
|
Dhcp.map |
38,649 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Retail |
|
Dhcp.rel |
50,082 |
03-Apr-2012 |
17:47 |
Public\Common\Oak\Target\Mipsii\Retail |
|
Dhcp.dll |
143,360 |
03-Apr-2012 |
17:49 |
Public\Common\Oak\Target\Mipsii_fp\Checked |
|
Dhcp.map |
107,860 |
03-Apr-2012 |
17:49 |
Public\Common\Oak\Target\Mipsii_fp\Checked |
|
Dhcp.rel |
126,990 |
03-Apr-2012 |
17:49 |
Public\Common\Oak\Target\Mipsii_fp\Checked |
|
Dhcp.dll |
188,416 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Debug |
|
Dhcp.map |
111,639 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Debug |
|
Dhcp.rel |
154,221 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Debug |
|
Dhcp.dll |
61,440 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Retail |
|
Dhcp.map |
38,649 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Retail |
|
Dhcp.rel |
50,082 |
03-Apr-2012 |
17:48 |
Public\Common\Oak\Target\Mipsii_fp\Retail |
|
Dhcp.dll |
110,592 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Checked |
|
Dhcp.map |
110,651 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Checked |
|
Dhcp.rel |
61,943 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Checked |
|
Dhcp.dll |
143,360 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Debug |
|
Dhcp.map |
114,101 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Debug |
|
Dhcp.rel |
69,512 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Debug |
|
Dhcp.dll |
49,152 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Retail |
|
Dhcp.map |
41,385 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Retail |
|
Dhcp.rel |
28,767 |
03-Apr-2012 |
17:50 |
Public\Common\Oak\Target\Sh4\Retail |
|
Dhcp.dll |
94,208 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Checked |
|
Dhcp.map |
107,525 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Checked |
|
Dhcp.rel |
34,770 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Checked |
|
Dhcp.dll |
126,976 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Debug |
|
Dhcp.map |
111,364 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Debug |
|
Dhcp.rel |
40,135 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Debug |
|
Dhcp.dll |
40,960 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Retail |
|
Dhcp.map |
38,693 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Retail |
|
Dhcp.rel |
11,019 |
03-Apr-2012 |
17:51 |
Public\Common\Oak\Target\X86\Retail |
