RFC 2868 (rfc2868) - Page 1 of 20

RADIUS Attributes for Tunnel Protocol Support

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Network Working Group                                            G. Zorn
Request for Comments: 2868                           Cisco Systems, Inc.
Updates: RFC 2865                                              D. Leifer
Category: Informational                                        A. Rubens
                                                   Ascend Communications
                                                              J. Shriver
                                                       Intel Corporation
                                                             M. Holdrege
                                                                 ipVerse
                                                               I. Goyret
                                                     Lucent Technologies
                                                               June 2000


             RADIUS Attributes for Tunnel Protocol Support

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   This document defines a set of RADIUS attributes designed to support
   the provision of compulsory tunneling in dial-up networks.

1.  Motivation

   Many applications of tunneling protocols such as L2TP involve dial-up
   network access.  Some, such as the provision of access to corporate
   intranets via the Internet, are characterized by voluntary tunneling:
   the tunnel is created at the request of the user for a specific
   purpose.  Other applications involve compulsory tunneling: the tunnel
   is created without any action from the user and without allowing the
   user any choice in the matter.  In order to provide this
   functionality, new RADIUS attributes are needed to carry the
   tunneling information from the RADIUS server to the tunnel end
   points; this document defines those attributes.  Specific
   recommendations for, and examples of, the application of these
   attributes for L2TP can be found in RFC 2809.






Zorn, et al.                 Informational
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