Microsoft KB Archive/254178

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Cannot Use Callback Security Feature for Remote Access or Demand-Dial Connections with VPN Connection

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ID: Q254178

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The information in this article applies to:


 * Microsoft Windows 2000 Professional

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SYMPTOMS
When you use a Microsoft Windows 2000-based client computer to connect to a server through a remote access or demand-dial connection and a Virtual Private Network (VPN), the Callback security feature does not work.

CAUSE
This behavior occurs because the Callback security feature is not intended for use with VPN connections.

MORE INFORMATION
The security Callback feature for remote access or demand-dial connections is designed to allow the server to force a disconnection and then place a dial-up call back to the originating client.

Another aspect of the Callback feature is that it cannot be used reliably for a basic-rate Integrated Services Digital Network (ISDN) client. This affects both remote access and demand-dial connections. A basic-rate ISDN line supports two telephone numbers, but the client cannot distinguish between the two when answering. As a result, the client may not recognize the incoming connection as a server callback.

Additional query words: win2krelnotes

Keywords :

Version : WINDOWS:2000

Platform : WINDOWS

Issue type : kbprb

Technology :