Microsoft KB Archive/933340

= You cannot use a remote access server to apply DHCP options to a Windows Vista-based computer =

Article ID: 933340

Article Last Modified on 9/17/2007

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APPLIES TO


 * Windows Vista Enterprise 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Business 64-bit Edition
 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Home Premium
 * Windows Vista Ultimate

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Important This article contains information about how to modify the registry. Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in Windows XP and Windows Vista



SYMPTOMS
You cannot use a remote access server to apply Dynamic Host Configuration Protocol (DHCP) options to a Windows Vista-based computer. Therefore, the Windows Vista-based computer loses some TCP/IP configurations.

This problem occurs if the following conditions are true:
 * You configured some options on a DHCP server.
 * You configured a remote access server to forward DHCP information from the DHCP server.
 * The Windows Vista-based computer uses a virtual private network (VPN) connection to connect to the remote access server.



CAUSE
This problem occurs because the DhcpRequestParams function does not work correctly in Windows Vista when Windows components call the function to request additional DHCP options. Therefore, the remote access server does not correctly forward DHCP information.



Hotfix information
A supported hotfix is now 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 service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.

Registry information
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.

To enable this hotfix, disable the DHCP BROADCAST flag in Windows Vista. To do this, follow these steps:  Click Start, type regedit in the Start Search box, and then click regedit in the Programs list.

If you are prompted for an administrator password or for confirmation, type your password, or click Continue. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp\Parameters

 On the Edit menu, point to New, and then click Key. Type DhcpGlobalForceBroadcastFlag for the name of the registry subkey, and then press ENTER. Click DhcpGlobalForceBroadcastFlag, point to New on the Edit menu, and then click Key. Type 0 for the name of the registry subkey, and then press ENTER.

Note The registry subkey &quot;0&quot; signifies a remote access adapter. The following table lists other registry subkeys that you can use. </li> Click 0, point to New on the Edit menu, and then click DWORD Value to create a new registry entry.</li> Type 0 for the name of the registry entry, and then press ENTER.</li> Right-click 0, and then click Modify.</li> In the Value data box, type 0, and then click OK.</li> Review the final output. The final output should resemble the following:

Note There are three zeros that represent, respectively, the subkey name, the value name, and the value data.</li> Exit Registry Editor.</li></ol>

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 Vista, 64-bit versions
<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

<div class="moreinformation_section">

MORE INFORMATION
For more information about the terms that are used to describe software updates, 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

Call stack information
<pre class="fixed_text">[3136] 12-20 15:01:36:063: IPCP:AdjustSelfInterfaceMetrics to value 0 successful [3136] 12-20 15:01:36:063: IPCP: New Dns= [3136] 12-20 15:01:36:063: IPCP: New Wins= [3136] 12-20 15:01:36:063: IPCP: SaveTcpipInfo... [3136] 12-20 15:01:36:073: IPCP: SaveTcpipInfo done(0) [3136] 12-20 15:01:36:073: IPCP: ReconfigureTcpip(07140d0a, ffffffff) [3136] 12-20 15:01:36:113: IPCP: ReconfigureTcpip done(0) [3136] 12-20 15:01:37:024: DnsDisableDynamicRegistration [3136] 12-20 15:01:37:024: DnsDisableAdapterDomainNameRegistration [3136] 12-20 15:01:37:024: DHCP inform is happening asynchronously [3136] 12-20 15:01:37:024: IPCP:RasPortSetProtocolCompression(s=0,0 r=0,0) [3136] 12-20 15:01:37:024: IPCP: RasPortSetProtocolCompression done(0) [3136] 12-20 15:01:37:024: IPCP: IpcpGetNetworkAddress... [3136] 12-20 15:01:37:024: IPCP: IpcpGetNetworkAddress done [256] 12-20 15:01:38:476: DhcpRequestParams({00B36FA7-0C42-4D5F-AB52-CB56733E913E}) [256] 12-20 15:01:38:476: DhcpRequestParams Start < Missing Options set [256] 12-20 15:01:49:813: DhcpRequestParams done(0)

Keywords: kbfix kbqfe kbpubtypekc kbexpertiseadvanced kbhotfixserver KB933340

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