RFC 2809 (rfc2809) - Page 1 of 23

Implementation of L2TP Compulsory Tunneling via RADIUS

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Network Working Group                                          B. Aboba
Request for Comments: 2809                                    Microsoft
Category: Informational                                         G. Zorn
                                                                  Cisco
                                                             April 2000


         Implementation of L2TP Compulsory Tunneling via RADIUS

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 discusses implementation issues arising in the
   provisioning of compulsory tunneling in dial-up networks using the
   L2TP protocol.  This provisioning can be accomplished via the
   integration of RADIUS and tunneling protocols. Implementation issues
   encountered with other tunneling protocols are left to separate
   documents.

1. Terminology

   Voluntary Tunneling
              In voluntary tunneling, a tunnel is created by the user,
              typically via use of a tunneling client.

   Compulsory Tunneling
              In compulsory tunneling, a tunnel is created without any
              action from the user and without allowing the user any
              choice.

   Tunnel Network Server
              This is a server which terminates a tunnel. In L2TP
              terminology, this is known as the L2TP Network Server
              (LNS).








Aboba & Zorn                 Informational
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