Microsoft KB Archive/922823

= A Windows 2000-based remote access server cannot perform a successful callback to a remote access client computer when security bulletin MS06-025 is installed on the remote access server =

Article ID: 922823

Article Last Modified on 8/23/2006

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APPLIES TO


 * Microsoft Windows 2000 Datacenter Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 4
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 3
 * Microsoft Windows 2000 Service Pack 3

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SYMPTOMS
When security update 911280 is installed on a Microsoft Windows 2000-based remote access server, the remote access server cannot perform a successful callback to a remote access client computer.

Additionally, the following event is logged in the Event Viewer System log on the remote access server: Event Type: Error

Event Source: RemoteAccess

Event ID: 20089

Date:

Time:

User: N/A

Computer:

Description:

The Remote Access Server's attempt to callback user \  port   at   failed because of the following error: There was no answer.

Note Security update 911280 is described in security bulletin MS06-025. For more information about security bulletin MS06-025, click the following article number to view the article in the Microsoft Knowledge Base:

911280 MS06-025: Vulnerability in Routing and Remote Access could allow remote code execution



CAUSE
This problem occurs because the remote access server truncates the last digit from the callback telephone number when it performs a callback to a remote access client computer.



Hotfix information
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;[LN;CNTACTMS]

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
No prerequisites are required.

Restart requirement
You must restart your 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.



WORKAROUND
To work around this problem, add an extra digit at the end of the callback telephone number. The extra digit will be truncated, and the callback telephone number will be dialed correctly.



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



MORE INFORMATION
For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages

For more information, 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 query words: RRAS RAS callback truncated dial-up

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver KB922823

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