Applications or services cannot update their routing tables after they receive route change notifications in Windows Server 2008 R2 or in Windows 7

Symptoms

Consider the following scenario:

  • You configure multiple addresses for a network adapter on a computer that is running Windows Server 2008 R2 or Windows 7.

  • You change IP address information about the network adapter. The changed IP address is not the first bound address. For example, you add a new IP address to the adapter, you remove an IP address, or you change the IP address configuration.

    Note This operation should trigger the operating system to send route change notifications.

  • You run an application or a service that registers to receive route change notifications on the computer.

In this scenario, the application or service cannot update the routing table after the route change notification is received.

Note The routing table is maintained by the application or the service. It is not the system routing table.

Here is a sample scenario:

  • You install Routing and Remote Access Service (RRAS) on a computer that is running Windows Server 2008 R2. This service registers to receive route change notifications.

  • You add a second IP address to a network adapter on the computer.

  • You open the Routing and Remote Access window, right-click the network adapter, and then select Show IP Routing Table.

In this scenario, the displayed routing table does not show the newly added IP address. The expected behavior is that the RRAS updates the routing table after the service receives route change notifications.

Cause

This issue occurs because the "next-hop" address information in the route change notification is incorrect.

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 the problem that is 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 website:

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, you must be running one of the following operating systems:

  • Windows 7

  • Windows 7 Service Pack 1 (SP1)

  • Windows Server 2008 R2

  • Windows Server 2008 R2 Service Pack 1 (SP1)

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 7 and Windows Server 2008 R2 file information notes


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 to both 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 files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    0.20xxx

    Windows 7 and Windows Server 2008 R2

    RTM

    LDR

    6.1.760
    1.17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, very important issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • 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 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 7

File name

File version

File size

Date

Time

Platform

Fwpkclnt.sys

6.1.7600.20861

187,264

18-Dec-2010

05:35

x86

Tcpip.sys

6.1.7600.20861

1,298,304

18-Dec-2010

05:35

x86

Fwpkclnt.sys

6.1.7601.17514

187,776

20-Nov-2010

12:29

x86

Tcpip.sys

6.1.7601.21624

1,290,112

18-Dec-2010

08:05

x86

For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Fwpkclnt.sys

6.1.7600.20861

288,128

18-Dec-2010

06:12

x64

Tcpip.sys

6.1.7600.20861

1,893,248

18-Dec-2010

06:13

x64

Fwpkclnt.sys

6.1.7601.17514

288,640

20-Nov-2010

13:33

x64

Tcpip.sys

6.1.7601.21624

1,923,968

18-Dec-2010

08:56

x64

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

File name

File version

File size

Date

Time

Platform

Fwpkclnt.sys

6.1.7600.20861

482,688

18-Dec-2010

05:23

IA-64

Tcpip.sys

6.1.7600.20861

3,801,472

18-Dec-2010

05:23

IA-64

Fwpkclnt.sys

6.1.7601.17514

483,200

20-Nov-2010

10:33

IA-64

Tcpip.sys

6.1.7601.21624

3,779,456

18-Dec-2010

09:41

IA-64

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 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 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

X86_48a52f5e57bb53a81aa1b4df3e72d38f_31bf3856ad364e35_6.1.7600.20861_none_98803cf45f49492f.manifest

File version

Not applicable

File size

702

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

X86_b28c73881d5ac0ffeae1b2bccacf67a0_31bf3856ad364e35_6.1.7601.21624_none_2d63e4f877ecc0e0.manifest

File version

Not applicable

File size

702

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.20861_none_b38fab88e0cacd8f.manifest

File version

Not applicable

File size

3,834

Date (UTC)

18-Dec-2010

Time (UTC)

06:00

Platform

Not applicable

File name

X86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21624_none_b5a4491cddce15bc.manifest

File version

Not applicable

File size

3,780

Date (UTC)

20-Dec-2010

Time (UTC)

21:46

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2

File name

Amd64_ac5bbd960f9ab414c6d6f46a68cfc403_31bf3856ad364e35_6.1.7601.21624_none_dced42728da54511.manifest

File version

Not applicable

File size

706

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

Amd64_bd3ec78830fec655267951f994208d5a_31bf3856ad364e35_6.1.7600.20861_none_f7230879db68c351.manifest

File version

Not applicable

File size

706

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.20861_none_0fae470c99283ec5.manifest

File version

Not applicable

File size

3,838

Date (UTC)

18-Dec-2010

Time (UTC)

06:57

Platform

Not applicable

File name

Amd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21624_none_11c2e4a0962b86f2.manifest

File version

Not applicable

File size

3,784

Date (UTC)

20-Dec-2010

Time (UTC)

21:49

Platform

Not applicable

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

File name

Ia64_30ae1a7718518a8442509f3ca00df76a_31bf3856ad364e35_6.1.7601.21624_none_1ae9facae6fbc5eb.manifest

File version

Not applicable

File size

704

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

Ia64_d6d4ce44139fed7e943389ce31852b39_31bf3856ad364e35_6.1.7600.20861_none_58800dbdbf769391.manifest

File version

Not applicable

File size

704

Date (UTC)

20-Dec-2010

Time (UTC)

21:42

Platform

Not applicable

File name

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.20861_none_b3914f7ee0c8d68b.manifest

File version

Not applicable

File size

3,836

Date (UTC)

18-Dec-2010

Time (UTC)

06:54

Platform

Not applicable

File name

Ia64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.21624_none_b5a5ed12ddcc1eb8.manifest

File version

Not applicable

File size

3,782

Date (UTC)

20-Dec-2010

Time (UTC)

21:43

Platform

Not applicable

Need more help?

Expand your skills
Explore Training
Get new features first
Join Microsoft Insiders

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×