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  2. FIX: DHCP DISCOVER packets flood a network when you set the maximum number of DHCP retries to a high value on a Windows Embedded Compact 7-based device

FIX: DHCP DISCOVER packets flood a network when you set the maximum number of DHCP retries to a high value on a Windows Embedded Compact 7-based device

View products that this article applies to.

Symptoms

Consider the following scenario:
  • You set the DWORD value of the DhcpGlobalMaxRetries registry entry to a high value on a Windows Embedded Compact 7-based device. For example, you set the DWORD value in the following registry subkey to "0fffffff":
    [HKEY_LOCAL_MACHINE\Comm\Tcpip\Parms]
    Note You can also set the DhcpMaxRetries registry entry to a high value for a specific network adapter.
  • You try to connect the network adapter to a network that does not have a Dynamic Host Configuration Protocol (DHCP) server. For example, you try to connect the network adapter to a hub.
In this scenario, the DHCP client on the device floods the network with DHCP DISCOVER packets.

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Resolution

Software update information

Download information

The Windows Embedded Compact 7 Monthly Update (November 2012) is now available from Microsoft. To download this Windows Embedded Compact 7 Monthly Update, go to the following Microsoft Download Center website:
Windows Embedded Compact 7 updates
The kind of processor that each file applies to is visible in the name of each file in the "File information" section.

Prerequisites

This update is supported only if all previous updates for this product are 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.
File nameFile sizeDateTimePath
Dhcp.dll118,78402-Nov-201200:18Public\Common\Oak\Target\Armv5\Checked
Dhcp.map114,30102-Nov-201221:19Public\Common\Oak\Target\Armv5\Checked
Dhcp.rel39,35202-Nov-201221:19Public\Common\Oak\Target\Armv5\Checked
Dhcp.dll172,03202-Nov-201200:18Public\Common\Oak\Target\Armv5\Debug
Dhcp.map118,33102-Nov-201221:15Public\Common\Oak\Target\Armv5\Debug
Dhcp.rel40,04802-Nov-201221:15Public\Common\Oak\Target\Armv5\Debug
Dhcp.dll53,24802-Nov-201200:18Public\Common\Oak\Target\Armv5\Retail
Dhcp.map42,32402-Nov-201221:13Public\Common\Oak\Target\Armv5\Retail
Dhcp.rel14,58602-Nov-201221:13Public\Common\Oak\Target\Armv5\Retail
Dhcp.dll118,78402-Nov-201200:20Public\Common\Oak\Target\Armv6\Checked
Dhcp.map114,30102-Nov-201222:04Public\Common\Oak\Target\Armv6\Checked
Dhcp.rel39,35202-Nov-201222:04Public\Common\Oak\Target\Armv6\Checked
Dhcp.dll172,03202-Nov-201200:20Public\Common\Oak\Target\Armv6\Debug
Dhcp.map118,33102-Nov-201222:01Public\Common\Oak\Target\Armv6\Debug
Dhcp.rel40,04802-Nov-201222:01Public\Common\Oak\Target\Armv6\Debug
Dhcp.dll53,24802-Nov-201200:19Public\Common\Oak\Target\Armv6\Retail
Dhcp.map42,32402-Nov-201221:58Public\Common\Oak\Target\Armv6\Retail
Dhcp.rel14,58602-Nov-201221:58Public\Common\Oak\Target\Armv6\Retail
Dhcp.dll118,78402-Nov-201200:21Public\Common\Oak\Target\Armv7\Checked
Dhcp.map114,21802-Nov-201222:48Public\Common\Oak\Target\Armv7\Checked
Dhcp.rel39,32302-Nov-201222:48Public\Common\Oak\Target\Armv7\Checked
Dhcp.dll172,03202-Nov-201200:21Public\Common\Oak\Target\Armv7\Debug
Dhcp.map118,33102-Nov-201222:45Public\Common\Oak\Target\Armv7\Debug
Dhcp.rel40,04802-Nov-201222:45Public\Common\Oak\Target\Armv7\Debug
Dhcp.dll53,24802-Nov-201200:21Public\Common\Oak\Target\Armv7\Retail
Dhcp.map42,32402-Nov-201222:42Public\Common\Oak\Target\Armv7\Retail
Dhcp.rel14,58602-Nov-201222:42Public\Common\Oak\Target\Armv7\Retail
Dhcp.dll147,45602-Nov-201200:22Public\Common\Oak\Target\Mipsii\Checked
Dhcp.map111,94102-Nov-201223:32Public\Common\Oak\Target\Mipsii\Checked
Dhcp.rel129,48402-Nov-201223:32Public\Common\Oak\Target\Mipsii\Checked
Dhcp.dll192,51202-Nov-201200:22Public\Common\Oak\Target\Mipsii\Debug
Dhcp.map115,72002-Nov-201223:29Public\Common\Oak\Target\Mipsii\Debug
Dhcp.rel157,35302-Nov-201223:29Public\Common\Oak\Target\Mipsii\Debug
Dhcp.dll61,44002-Nov-201200:22Public\Common\Oak\Target\Mipsii\Retail
Dhcp.map40,11902-Nov-201223:26Public\Common\Oak\Target\Mipsii\Retail
Dhcp.rel51,32902-Nov-201223:26Public\Common\Oak\Target\Mipsii\Retail
Dhcp.dll147,45602-Nov-201200:23Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.map111,94103-Nov-201200:16Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.rel129,48403-Nov-201200:16Public\Common\Oak\Target\Mipsii_fp\Checked
Dhcp.dll192,51202-Nov-201200:23Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.map115,72003-Nov-201200:13Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.rel157,35303-Nov-201200:13Public\Common\Oak\Target\Mipsii_fp\Debug
Dhcp.dll61,44002-Nov-201200:23Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.map40,11903-Nov-201200:10Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.rel51,32903-Nov-201200:10Public\Common\Oak\Target\Mipsii_fp\Retail
Dhcp.dll114,68802-Nov-201200:24Public\Common\Oak\Target\Sh4\Checked
Dhcp.map114,80603-Nov-201201:00Public\Common\Oak\Target\Sh4\Checked
Dhcp.rel62,98703-Nov-201201:00Public\Common\Oak\Target\Sh4\Checked
Dhcp.dll147,45602-Nov-201200:24Public\Common\Oak\Target\Sh4\Debug
Dhcp.map118,25603-Nov-201200:57Public\Common\Oak\Target\Sh4\Debug
Dhcp.rel70,67203-Nov-201200:57Public\Common\Oak\Target\Sh4\Debug
Dhcp.dll49,15202-Nov-201200:24Public\Common\Oak\Target\Sh4\Retail
Dhcp.map42,92903-Nov-201200:54Public\Common\Oak\Target\Sh4\Retail
Dhcp.rel29,40503-Nov-201200:54Public\Common\Oak\Target\Sh4\Retail
Dhcp.dll98,30402-Nov-201200:25Public\Common\Oak\Target\X86\Checked
Dhcp.map111,77203-Nov-201201:42Public\Common\Oak\Target\X86\Checked
Dhcp.rel35,52403-Nov-201201:42Public\Common\Oak\Target\X86\Checked
Dhcp.dll131,07202-Nov-201200:25Public\Common\Oak\Target\X86\Debug
Dhcp.map115,44503-Nov-201201:39Public\Common\Oak\Target\X86\Debug
Dhcp.rel41,35303-Nov-201201:39Public\Common\Oak\Target\X86\Debug
Dhcp.dll40,96002-Nov-201200:25Public\Common\Oak\Target\X86\Retail
Dhcp.map40,32903-Nov-201201:36Public\Common\Oak\Target\X86\Retail
Dhcp.rel11,65703-Nov-201201:36Public\Common\Oak\Target\X86\Retail
Dhcp.lib3,83202-Nov-201200:18Public\Common\Oak\Lib\Armv5\Checked
Dhcp.exp1,98802-Nov-201221:18Public\Common\Oak\Lib\Armv5\Checked
Dhcp.lib3,83202-Nov-201200:18Public\Common\Oak\Lib\Armv5\Debug
Dhcp.exp1,98802-Nov-201221:15Public\Common\Oak\Lib\Armv5\Debug
Dhcp.lib3,83202-Nov-201200:18Public\Common\Oak\Lib\Armv5\Retail
Dhcp.exp1,98802-Nov-201221:12Public\Common\Oak\Lib\Armv5\Retail
Dhcp.lib3,83202-Nov-201200:20Public\Common\Oak\Lib\Armv6\Checked
Dhcp.exp1,98802-Nov-201222:04Public\Common\Oak\Lib\Armv6\Checked
Dhcp.lib3,83202-Nov-201200:20Public\Common\Oak\Lib\Armv6\Debug
Dhcp.exp1,98802-Nov-201222:01Public\Common\Oak\Lib\Armv6\Debug
Dhcp.lib3,83202-Nov-201200:19Public\Common\Oak\Lib\Armv6\Retail
Dhcp.exp1,98802-Nov-201221:58Public\Common\Oak\Lib\Armv6\Retail
Dhcp.lib3,83202-Nov-201200:21Public\Common\Oak\Lib\Armv7\Checked
Dhcp.exp1,98802-Nov-201222:48Public\Common\Oak\Lib\Armv7\Checked
Dhcp.lib3,83202-Nov-201200:21Public\Common\Oak\Lib\Armv7\Debug
Dhcp.exp1,98802-Nov-201222:45Public\Common\Oak\Lib\Armv7\Debug
Dhcp.lib3,83202-Nov-201200:21Public\Common\Oak\Lib\Armv7\Retail
Dhcp.exp1,98802-Nov-201222:42Public\Common\Oak\Lib\Armv7\Retail
Dhcp.lib3,83202-Nov-201200:22Public\Common\Oak\Lib\Mipsii\Checked
Dhcp.exp1,98802-Nov-201223:32Public\Common\Oak\Lib\Mipsii\Checked
Dhcp.lib3,83202-Nov-201200:22Public\Common\Oak\Lib\Mipsii\Debug
Dhcp.exp1,98802-Nov-201223:29Public\Common\Oak\Lib\Mipsii\Debug
Dhcp.lib3,83202-Nov-201200:22Public\Common\Oak\Lib\Mipsii\Retail
Dhcp.exp1,98802-Nov-201223:26Public\Common\Oak\Lib\Mipsii\Retail
Dhcp.lib3,83202-Nov-201200:23Public\Common\Oak\Lib\Mipsii_fp\Checked
Dhcp.exp1,98803-Nov-201200:16Public\Common\Oak\Lib\Mipsii_fp\Checked
Dhcp.lib3,83202-Nov-201200:23Public\Common\Oak\Lib\Mipsii_fp\Debug
Dhcp.exp1,98803-Nov-201200:13Public\Common\Oak\Lib\Mipsii_fp\Debug
Dhcp.lib3,83202-Nov-201200:23Public\Common\Oak\Lib\Mipsii_fp\Retail
Dhcp.exp1,98803-Nov-201200:10Public\Common\Oak\Lib\Mipsii_fp\Retail
Dhcp.lib3,84402-Nov-201200:24Public\Common\Oak\Lib\Sh4\Checked
Dhcp.exp1,99903-Nov-201200:59Public\Common\Oak\Lib\Sh4\Checked
Dhcp.lib3,84402-Nov-201200:24Public\Common\Oak\Lib\Sh4\Debug
Dhcp.exp1,99903-Nov-201200:56Public\Common\Oak\Lib\Sh4\Debug
Dhcp.lib3,84402-Nov-201200:24Public\Common\Oak\Lib\Sh4\Retail
Dhcp.exp1,99903-Nov-201200:54Public\Common\Oak\Lib\Sh4\Retail
Dhcp.lib3,84402-Nov-201200:25Public\Common\Oak\Lib\X86\Checked
Dhcp.exp1,99903-Nov-201201:41Public\Common\Oak\Lib\X86\Checked
Dhcp.lib3,84402-Nov-201200:25Public\Common\Oak\Lib\X86\Debug
Dhcp.exp1,99903-Nov-201201:39Public\Common\Oak\Lib\X86\Debug
Dhcp.lib3,84402-Nov-201200:25Public\Common\Oak\Lib\X86\Retail
Dhcp.exp2,00303-Nov-201201:36Public\Common\Oak\Lib\X86\Retail


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Workaround

To work around this issue, set the DhcpGlobalMaxRetries or the DhcpMaxRetries registry entry to a low DWORD value.

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Keywords: kbqfe, kbfix, atdownload, kbsurveynew, kbexpertiseinter, kb

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Article Info
Article ID : 2770880
Revision : 1
Created on : 1/7/2017
Published on : 12/10/2012
Exists online : False
Views : 188