Windows Vista-based client computers do not use the node type that you specify for name resolution on the DHCP server

Windows Vista-based client computers do not use the node type that you specify for name resolution on the DHCP server

Article ID : 938248
Last Review : November 2, 2007
Revision : 2.1
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SYMPTOMS

You use a Dynamic Host Configuration Protocol (DHCP) server to assign TCP/IP configurations to client computers. You set the WINS/NBT Node Type scope option to a specific node type. However, one or more Windows Vista-based client computers do not use the node type that you specify for name resolution.

For example, you set the WINS/NBT Node Type scope option to P-node (0x2) to configure client computers to use P-node name resolution. However, some Windows Vista-based client computers do not use P-node name resolution. Instead, if these computers cannot resolve the host name by using a NetBIOS name server, they broadcast requests. This behavior causes unexpected traffic in the network environment.

Note In the P-node configuration, client computers should not broadcast requests even if the computers cannot resolve the host name by using a NetBIOS name server.

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CAUSE

This problem occurs if the DHCP Client service on a Windows Vista-based client computer does not have permission to write the following registry subkey:

HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Netbt Parameters

This registry subkey controls the client node type. If a computer cannot write this registry subkey, the computer uses a default configuration that is based on the following principles:

• If no NetBIOS name server is configured for the client computer, the computer uses B-node.
• If one or more NetBIOS name servers are configured for the client computer, the computer uses H-node.

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RESOLUTION

After you apply this hotfix, the DHCP Client service has permission to write the registry subkey.

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

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this hotfix. However, you can obtain new TCP/IP configurations from the DHCP server by restarting the computer. Or, you can type the following commands to obtain the new configurations. Press ENTER after each command.

ipconfig /release
ipconfig /renew

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 item in Control Panel.

Windows Vista, 32-bit versions
File name File version File size Date Time Platform
Update.mum Not applicable 2,666 01-Jun-2007 11:40 Not applicable
X86_17f8a129334d9db5cad88c4701803fdc_31bf3856ad364e35_6.0.6000.20610_none_a4bdbe9021f33ae0.manifest Not applicable 693 01-Jun-2007 11:40 Not applicable
X86_1dbb82a81e605554f9037311063c5ba5_31bf3856ad364e35_6.0.6000.20610_none_ab9ec0ad53822b7e.manifest Not applicable 706 01-Jun-2007 11:40 Not applicable
X86_microsoft-windows-netbt_31bf3856ad364e35_6.0.6000.20610_none_5efd54b513435508.manifest Not applicable 21,254 01-Jun-2007 11:42 Not applicable
X86_microsoft-windows-tcpip-nettcpip-pro_31bf3856ad364e35_6.0.6000.20610_none_a6f5464fec263b41.manifest Not applicable 2,909 01-Jun-2007 11:42 Not applicable
Netbt.sys 6.0.6000.20610 184,320 01-Jun-2007 01:39 x86
Netbtugc.exe 6.0.6000.20610 21,504 01-Jun-2007 01:39 x86
Windows Vista, 64-bit versions
File name File version File size Date Time Platform
Amd64_1aed3f767f1db3e30f22b22b0f69930e_31bf3856ad364e35_6.0.6000.20610_none_c20bc1a8fd1b8144.manifest Not applicable 710 01-Jun-2007 11:40 Not applicable
Amd64_3f4e6bd32d8bd43455a0712a9944474c_31bf3856ad364e35_6.0.6000.20610_none_1345d4008f5924bc.manifest Not applicable 697 01-Jun-2007 11:40 Not applicable
Amd64_eb65e3bca8c6579c9e2b19271303978b_31bf3856ad364e35_6.0.6000.20610_none_81f739cecbc003ed.manifest Not applicable 697 01-Jun-2007 11:40 Not applicable
Amd64_microsoft-windows-netbt_31bf3856ad364e35_6.0.6000.20610_none_bb1bf038cba0c63e.manifest Not applicable 21,280 01-Jun-2007 11:46 Not applicable
Amd64_microsoft-windows-tcpip-nettcpip-pro_31bf3856ad364e35_6.0.6000.20610_none_0313e1d3a483ac77.manifest Not applicable 2,915 01-Jun-2007 11:46 Not applicable
Package_1_for_kb938248~31bf3856ad364e35~amd64~~6.0.1.0.mum Not applicable 1,786 01-Jun-2007 11:40 Not applicable
Package_2_for_kb938248~31bf3856ad364e35~amd64~~6.0.1.0.mum Not applicable 2,681 01-Jun-2007 11:40 Not applicable
Update.mum Not applicable 1,909 01-Jun-2007 11:40 Not applicable
Wow64_microsoft-windows-netbt_31bf3856ad364e35_6.0.6000.20610_none_c5709a8b00018839.manifest Not applicable 8,164 01-Jun-2007 11:46 Not applicable
Netbt.sys 6.0.6000.20610 233,472 01-Jun-2007 02:05 x64
Netbtugc.exe 6.0.6000.20610 24,064 01-Jun-2007 02:05 x64
Netbtugc.exe 6.0.6000.20610 21,504 01-Jun-2007 01:39 x86

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STATUS

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

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WORKAROUND

To work around this problem, manually set the node type in the client computer’s registry. To do this, follow these steps:

1. Click Start, type regedit in the Start Search box, and then press ENTER.
2. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Netbt Parameters
3. On the Edit menu, point to New, and then click DWORD Value.
4. Type NodeType, and then press ENTER.
5. Right-click NodeType, and then click Modify.
6. In the Value data box, type the desired value, and then click OK.

Note To use P-node name resolution, set this value to 2.

7. Exit Registry Editor.

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MORE INFORMATION

For more information about name resolution in NetBIOS over TCP/IP, click the following article number to view the article in the Microsoft Knowledge Base:

119493 (/Feedback.aspx?kbNumber=119493/) NetBIOS over TCP/IP name resolution and WINS

For more information about DHCP, visit the following Microsoft TechNet Web site:

http://technet.microsoft.com/en-us/library/bb727003.aspx (http://technet.microsoft.com/en-us/library/bb727003.aspx)

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 (/Feedback.aspx?kbNumber=824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
• Windows Vista Home Basic
• Windows Vista Home Premium
• Windows Vista Ultimate
• Windows Vista Business
• Windows Vista Enterprise
• Windows Vista Home Basic 64-bit Edition
• Windows Vista Home Premium 64-bit Edition
• Windows Vista Ultimate 64-bit Edition
• Windows Vista Business 64-bit Edition
• Windows Vista Enterprise 64-bit Edition

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Keywords: 
kbbug kbfix kbqfe kbpubtypekc kbexpertiseinter kbhotfixserver kbwinvistapostrtmfix KB938248

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Microsoft Knowledge Base Article

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