"Name Error 3" error message when you send a query to an EDNS-enabled forwarding DNS server, and the query is resolved by using WINS forward lookup in Windows Server 2008 R2

Consider the following scenario:

• You are in a network environment.
• You have a DNS server (server A) that is running Windows Server 2008 R2 and that hosts a DNS zone.
• You enable Windows Internet Name Service (WINS) forward lookup on the DNS zone on server A.
• You have another DNS server (server B) that is running Windows Server 2008 R2 and that has a forwarder to server A.
• You send a query to the forwarding DNS server (server B).
• The query is forwarded to server A, and then is resolved by using WINS forward lookup successfully.
• You wait for the Time to Live (TTL) value to expire and then send the same query to server B again.
  
  Note The default TTL expiration value is 15 minutes.

In this scenario, server B receives the following error message from server A:Note This issue occurs only between DNS servers that are running Windows Server 2008 R2 and that have the extension mechanisms for DNS (EDNS) probes feature enabled by default.

This hotfix is also available at Microsoft Update Catalog

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.

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 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: 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

To apply this hotfix, you must be running one of the following operating systems:

• Windows Server 2008 R2
• Windows Server 2008 R2 Service Pack 1 (SP1)

For more information about how to obtain a Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

Registry information

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

Restart requirement

You do not have to 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 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 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 . 21xxx	Windows Server 2008 R2	RTM	LDR
  6.1.760 1 . 22xxx	Windows Server 2008 R2	SP1	LDR

• 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 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.

Version 1 (Fix367430)

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

Note You may experience the following issue after you apply version 1 of this hotfix. To fix this issue, apply version 2 (Fix423384) of this hotfix.

Assume that you configure a DNS Primary Zone (for example, contoso.com) to use WINS lookup, and then you create a subdomain (for example, test.contoso.com) inside ithe DNS pimary zone. When you query for a subdomain that does not exist (for example test.test.contoso.com), you receive SUCCESS instead of NXDOMAIN.

Version 2 (Fix423384)

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

To work around this issue, disable the EDNS probes feature. To do this, at command prompt, type the following command, and then press Enter:

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

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: For more information about another issue that occurs because of EDNS0 functionality, click the following article number to view the article in the Microsoft Knowledge Base:

Additional file information

Additional file information for Windows Server 2008 R2

Additional files for all supported x64-based versions of Windows Server 2008 R2 (Version 1)

Additional files for all supported x64-based versions of Windows Server 2008 R2�(Version 2)