Link Local ISATAP addresses are not generated for the virtual IP used by the NLB feature on a computer that is running Windows Server 2008 R2

Symptoms

Link Local ISATAP addresses are not created for the virtual IP address used by the Network Load Balancing (NLB) feature on a computer that is running Windows Server 2008 R2. This hinders the usage of NLB nodes as a ISATAP router.

Cause

This problem occurs because the IP Helper service does not let virtual IP address interfaces generate ISATAP tunneled addresses or 6to4 tunneled addresses as designed.

For the DIP address ( Dedicated IP ) you will have an ISATAP address available but for the VIP ( Virtual IP ) there is no possibility of having Global Addresses support for the NLB VIP address ( Virtual IP) and no ISATAP addresses can be configured for a VIP.

Resolution

After you apply this hotfix, Link Local ISATAP addresses (FE80::5EFE:'IPv4 address') are generated for the virtual IP addresses and therefore the NLB cluster can act as a ISATAP router. A Link Local ISATAP address is sufficient to act as a ISATAP router because the default route on ISATAP hosts always points to the Link Local ISATAP address of the ISATAP router.

There are no global routable ISATAP addresses (200x::5EFE:'IPv4 address') generated for the virtual IP addresses. This is expected.

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 the problem described in this article. 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=supportNote 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

To apply this hotfix, your computer must be running Windows Server 2008 R2.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

File information

The global version of this hotfix has the file attributes (or later versions of 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.
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both of these operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x64-based versions of Windows Server 2008 R2



File name

File version

File size

Date

Time

Platform

Service branch

Iphlpsvc.dll

6.1.7600.20567

568,320

05-Nov-2009

12:51

x64

Not Applicable

Iphlpsvcmigplugin.dll

6.1.7600.16385

60,416

14-Jul-2009

01:41

x64

Not Applicable

Nlb-unattend.exe

6.1.7600.20568

39,424

06-Nov-2009

07:57

x64

Not Applicable

Nlbcfg.dll

6.1.7600.20568

79,872

06-Nov-2009

07:58

x64

Not Applicable

Nlbmigplugin.dll

6.1.7600.20568

166,400

06-Nov-2009

07:58

x64

Not Applicable

Nlbmprov.dll

6.1.7600.20568

125,440

06-Nov-2009

07:58

x64

Not Applicable

Nlbmprov.mof

Not Applicable

8,902

06-Nov-2009

00:50

Not Applicable

Not Applicable

Nlbmprovuninstall.mof

Not Applicable

138

06-Nov-2009

00:50

Not Applicable

Not Applicable

Nlbtrace.mof

Not Applicable

2,584

22-Jul-2009

23:33

Not Applicable

Not Applicable

Wlbsctrl.dll

6.1.7600.20568

94,208

06-Nov-2009

07:59

x64

Not Applicable

Wlbsprov.dll

6.1.7600.20568

226,816

06-Nov-2009

07:59

x64

Not Applicable

Wlbsprov.mof

Not Applicable

32,382

06-Nov-2009

00:50

Not Applicable

Not Applicable

Wlbsprovuninstall.mof

Not Applicable

138

06-Nov-2009

00:50

Not Applicable

Not Applicable

Nlb.sys

6.1.7600.20568

330,240

06-Nov-2009

05:07

x64

Not Applicable

Fwpkclnt.sys

6.1.7600.16385

288,336

14-Jul-2009

01:47

x64

Not Applicable

Tcpip.sys

6.1.7600.20567

1,899,080

05-Nov-2009

13:05

x64

Not Applicable

Iphlpsvcmigplugin.dll

6.1.7600.20567

51,200

05-Nov-2009

09:33

x86

WOW


For all supported IA-64-based versions of Windows Server 2008 R2



File name

File version

File size

Date

Time

Platform

Service branch

Iphlpsvc.dll

6.1.7600.20567

977,920

05-Nov-2009

08:40

IA-64

Not Applicable

Iphlpsvcmigplugin.dll

6.1.7600.16385

133,632

14-Jul-2009

01:46

IA-64

Not Applicable

Nlb-unattend.exe

6.1.7600.20568

84,480

06-Nov-2009

06:23

IA-64

Not Applicable

Nlbcfg.dll

6.1.7600.20568

174,592

06-Nov-2009

06:27

IA-64

Not Applicable

Nlbmigplugin.dll

6.1.7600.20568

350,720

06-Nov-2009

06:27

IA-64

Not Applicable

Nlbmprov.dll

6.1.7600.20568

281,600

06-Nov-2009

06:27

IA-64

Not Applicable

Nlbmprov.mof

Not Applicable

8,902

06-Nov-2009

00:42

Not Applicable

Not Applicable

Nlbmprovuninstall.mof

Not Applicable

138

06-Nov-2009

00:42

Not Applicable

Not Applicable

Nlbtrace.mof

Not Applicable

2,584

22-Jul-2009

23:59

Not Applicable

Not Applicable

Wlbsctrl.dll

6.1.7600.20568

205,312

06-Nov-2009

06:29

IA-64

Not Applicable

Wlbsprov.dll

6.1.7600.20568

462,848

06-Nov-2009

06:29

IA-64

Not Applicable

Wlbsprov.mof

Not Applicable

32,382

06-Nov-2009

00:42

Not Applicable

Not Applicable

Wlbsprovuninstall.mof

Not Applicable

138

06-Nov-2009

00:42

Not Applicable

Not Applicable

Nlb.sys

6.1.7600.20568

763,904

06-Nov-2009

04:24

IA-64

Not Applicable

Fwpkclnt.sys

6.1.7600.16385

482,896

14-Jul-2009

01:58

IA-64

Not Applicable

Tcpip.sys

6.1.7600.20567

3,778,648

05-Nov-2009

08:50

IA-64

Not Applicable

Iphlpsvcmigplugin.dll

6.1.7600.20567

51,200

05-Nov-2009

09:33

x86

WOW


Status

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

More Information

For more information about ISATAP tunneled addresses, visit the following Microsoft Web site:

http://www.microsoft.com/download/details.aspx?FamilyId=B8F50E07-17BF-4B5C-A1F9-5A09E2AF698B&displaylang=enFor 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

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2



File name

File version

File size

Date

Time

Platform

Amd64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20567_none_6e794396af170a0a.manifest

Not Applicable

131,043

05-Nov-2009

19:38

Not Applicable

Amd64_microsoft-windows-n..kloadbalancing-core_31bf3856ad364e35_6.1.7600.20568_none_710eeadd03fab472.manifest

Not Applicable

22,017

06-Nov-2009

08:29

Not Applicable

Amd64_microsoft-windows-n..ncing-networkdriver_31bf3856ad364e35_6.1.7600.20568_none_0aa128e84b25af5b.manifest

Not Applicable

2,669

06-Nov-2009

08:28

Not Applicable

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.20567_none_0fb443169922df5a.manifest

Not Applicable

3,784

05-Nov-2009

19:38

Not Applicable

Package_for_kb977342_rtm~31bf3856ad364e35~amd64~~6.1.2.0.mum

Not Applicable

3,178

06-Nov-2009

23:49

Not Applicable

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20567_none_78cdede8e377cc05.manifest

Not Applicable

123,749

05-Nov-2009

09:48

Not Applicable


Additional files for all supported IA-64-based versions of Windows Server 2008 R2



File name

File version

File size

Date

Time

Platform

Ia64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20567_none_125c4c08f6b7a1d0.manifest

Not Applicable

131,040

05-Nov-2009

19:35

Not Applicable

Ia64_microsoft-windows-n..kloadbalancing-core_31bf3856ad364e35_6.1.7600.20568_none_14f1f34f4b9b4c38.manifest

Not Applicable

22,015

06-Nov-2009

08:11

Not Applicable

Ia64_microsoft-windows-n..ncing-networkdriver_31bf3856ad364e35_6.1.7600.20568_none_ae84315a92c64721.manifest

Not Applicable

2,667

06-Nov-2009

08:10

Not Applicable

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.20567_none_b3974b88e0c37720.manifest

Not Applicable

3,782

05-Nov-2009

19:35

Not Applicable

Package_for_kb977342_rtm~31bf3856ad364e35~ia64~~6.1.2.0.mum

Not Applicable

2,452

06-Nov-2009

23:49

Not Applicable

Wow64_microsoft-windows-i..oexistencemigration_31bf3856ad364e35_6.1.7600.20567_none_78cdede8e377cc05.manifest

Not Applicable

123,749

05-Nov-2009

09:48

Not Applicable

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