Remote Access Service Callback Authentication Does Not Work

ID: Q182281

The information in this article applies to:

Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
Microsoft Windows NT Server versions 3.5, 3.51, 4.0
Microsoft Windows NT Server, Enterprise Edition version 4.0

SYMPTOMS

Callback authentication may not work with Windows NT-based Remote Access Service (RAS) servers when you attempt to connect to a Shiva LanRover Access Switch version 4.5 or an IBM 8235 Remote Access Server.

CAUSE

This behavior can occur with remote access devices that do not support the Microsoft Call Back Challenge Protocol (CBCP) for callback authentication.

MORE INFORMATION

The Shiva LanRover Access Switch version 4.5 and the IBM 8235 Remote Access Server use Shiva's proprietary Shiva Password Authentication Protocol (SPAP) for callback authentication and do not support CBCP. Contact the manufacturer for more information.

For information about how to contact Shiva or IBM, query in the Knowledge Base for one of the following articles:

ARTICLE-ID: Q65416
TITLE : Hardware and Software Third-Party Vendor Contact List, A-K

ARTICLE-ID: Q60781
TITLE : Hardware and Software Third-Party Vendor Contact List, L-P

ARTICLE-ID: Q60782
TITLE : Hardware and Software Third-Party Vendor Contact List, Q-Z

The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Keywords : kb3rdparty kbhw kbnetwork ntras ntsecurity
Version : WINNT:3.5,3.51,4.0
Platform : winnt
Issue type : kbprb