The virtual IP address of a Windows Server 2008 NLB cluster is bound to the NetBIOS host name of a particular server or of multiple servers

The virtual IP address of a Windows Server 2008 NLB cluster is bound to the NetBIOS host name of a particular server or of multiple servers

Article ID : 949429
Last Review : May 27, 2008
Revision : 1.0
On This Page

SYMPTOMS

When you run a Windows Server 2008 network load-balancing (NLB) cluster that has a virtual IP address configured, you may experience the following symptoms:

• When you use the nbtstat -n command to check the IP address of a server, the virtual IP address is bound to the NetBIOS host name of a particular server or of multiple servers.
• When you try to access a certain server by using its host name, you are routed to an incorrect server in the NLB cluster.
• When you try to use the virtual IP address to access the NLB cluster, you are always routed to the same server.

Note You expect that the virtual IP address will not be bound to any host names.

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RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a Hotfix download available section at the top of this Knowledge Base article. If this section does not appear, 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 if 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)

Note The Hotfix download available section and the online request forms display the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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 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 Server 2008, 32-bit editions
File name File version File size Date Time Platform
Netbt.sys 6.0.6001.22119 185,856 21-Feb-2008 02:27 x86
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86
Windows Server 2008, Itanium-based editions
File name File version File size Date Time Platform Service branch
Netbt.sys 6.0.6001.22119 634,368 21-Feb-2008 03:02 IA-64 Not Applicable
Netbtugc.exe 6.0.6001.22119 52,224 21-Feb-2008 03:01 IA-64 Not Applicable
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86 WOW
Windows Server 2008, 64-bit editions
File name File version File size Date Time Platform Service branch
Netbt.sys 6.0.6001.22119 251,392 21-Feb-2008 03:07 x64 Not Applicable
Netbtugc.exe 6.0.6001.22119 24,064 21-Feb-2008 03:07 x64 Not Applicable
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86 WOW

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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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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

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APPLIES TO
• Windows Server 2008 Standard
• Windows Server 2008 Enterprise
• Windows Server 2008 Datacenter
• Windows Server 2008 Datacenter without Hyper-V
• Windows Server 2008 Enterprise without Hyper-V
• Windows Server 2008 for Itanium-Based Systems
• Windows Server 2008 Standard without Hyper-V
• Windows Web Server 2008

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Keywords: 
kbautohotfix kbexpertiseinter kbbug kbfix kbhotfixserver kbqfe KB949429

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Microsoft Knowledge Base Article

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Microsoft Corporation. All rights reserved. Terms of Use | Trademarks


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The virtual IP address of a Windows Server 2008 NLB cluster is bound to the NetBIOS host name of a particular server or of multiple servers

The virtual IP address of a Windows Server 2008 NLB cluster is bound to the NetBIOS host name of a particular server or of multiple servers

Article ID : 949429
Last Review : May 27, 2008
Revision : 1.1
On This Page

SYMPTOMS

When you run a Windows Server 2008 network load-balancing (NLB) cluster that has a virtual IP address configured, you may experience the following symptoms:

• When you use the nbtstat -n command to check the IP address of a server, the virtual IP address is bound to the NetBIOS host name of a particular server or of multiple servers.
• When you try to access a certain server by using its host name, you are routed to an incorrect server in the NLB cluster.
• When you try to use the virtual IP address to access the NLB cluster, you are always routed to the same server.

Note You expect that the virtual IP address will not be bound to any host names.

Back to the top

RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a Hotfix download available section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or 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)

Note The Hotfix download available form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

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 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 Server 2008, 32-bit editions
File name File version File size Date Time Platform
Netbt.sys 6.0.6001.22119 185,856 21-Feb-2008 02:27 x86
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86
Windows Server 2008, Itanium-based editions
File name File version File size Date Time Platform Service branch
Netbt.sys 6.0.6001.22119 634,368 21-Feb-2008 03:02 IA-64 Not Applicable
Netbtugc.exe 6.0.6001.22119 52,224 21-Feb-2008 03:01 IA-64 Not Applicable
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86 WOW
Windows Server 2008, 64-bit editions
File name File version File size Date Time Platform Service branch
Netbt.sys 6.0.6001.22119 251,392 21-Feb-2008 03:07 x64 Not Applicable
Netbtugc.exe 6.0.6001.22119 24,064 21-Feb-2008 03:07 x64 Not Applicable
Netbtugc.exe 6.0.6001.22119 21,504 21-Feb-2008 02:27 x86 WOW

Back to the top

STATUS

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

Back to the top

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

Back to the top


APPLIES TO
• Windows Server 2008 Standard
• Windows Server 2008 Enterprise
• Windows Server 2008 Datacenter
• Windows Server 2008 Datacenter without Hyper-V
• Windows Server 2008 Enterprise without Hyper-V
• Windows Server 2008 for Itanium-Based Systems
• Windows Server 2008 Standard without Hyper-V
• Windows Web Server 2008

Back to the top

Keywords: 
kbautohotfix kbexpertiseinter kbbug kbfix kbhotfixserver kbqfe KB949429

Back to the top

 

Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
Microsoft Corporation. All rights reserved. Terms of Use | Trademarks


You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

AddThis Social Bookmark Button

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*
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