Remote Authentication Dial-In User Service (RADIUS) Authorization for Network Access Server (NAS) Management
RFC 5607

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 07

Network Working Group                                          D. Nelson
Request for Comments: 5607                         Elbrys Networks, Inc.
Category: Standards Track                                       G. Weber
                                                  Individual Contributor
                                                               July 2009

 Remote Authentication Dial-In User Service (RADIUS) Authorization for
                 Network Access Server (NAS) Management

Abstract

   This document specifies Remote Authentication Dial-In User Service
   (RADIUS) attributes for authorizing management access to a Network
   Access Server (NAS).  Both local and remote management are supported,
   with granular access rights and management privileges.  Specific
   provisions are made for remote management via Framed Management
   protocols and for management access over a secure transport protocol.

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (c) 2009 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents in effect on the date of
   publication of this document (http://trustee.ietf.org/license-info).
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may

Nelson & Weber              Standards Track                     [Page 1]
RFC 5607          RADIUS NAS-Management Authorization          July 2009

   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  4
   4.  Domain of Applicability  . . . . . . . . . . . . . . . . . . .  5
   5.  New Values for Existing RADIUS Attributes  . . . . . . . . . .  6
     5.1.  Service-Type . . . . . . . . . . . . . . . . . . . . . . .6
   6.  New RADIUS Attributes  . . . . . . . . . . . . . . . . . . . .  6
     6.1.  Framed-Management-Protocol . . . . . . . . . . . . . . . .  6
     6.2.  Management-Transport-Protection  . . . . . . . . . . . . . 9
     6.3.  Management-Policy-Id . . . . . . . . . . . . . . . . . . . 11
     6.4.  Management-Privilege-Level . . . . . . . . . . . . . . . . 13
   7.  Use with Dynamic Authorization . . . . . . . . . . . . . . . . 15
   8.  Examples of Attribute Groupings  . . . . . . . . . . . . . . . 15
   9.  Diameter Translation Considerations  . . . . . . . . . . . . . 17
   10. Table of Attributes  . . . . . . . . . . . . . . . . . . . . . 18
   11. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 19
   12. Security Considerations  . . . . . . . . . . . . . . . . . . . 20
     12.1. General Considerations . . . . . . . . . . . . . . . . . . 20
     12.2. RADIUS Proxy Operation Considerations  . . . . . . . . . . 22
   13. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 23
   14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 23
     14.1. Normative References . . . . . . . . . . . . . . . . . . . 23
     14.2. Informative References . . . . . . . . . . . . . . . . . . 23

Nelson & Weber              Standards Track                     [Page 2]
RFC 5607          RADIUS NAS-Management Authorization          July 2009

1.  Introduction

   RFC 2865 [RFC2865] defines the NAS-Prompt (7) and Administrative (6)
   values of the Service-Type (6) Attribute.  Both of these values
   provide access to the interactive, text-based Command Line Interface
   (CLI) of the NAS, and were originally developed to control access to
   the physical console port of the NAS, most often a serial port.

   Remote access to the CLI of the NAS has been available in NAS
   implementations for many years, using protocols such as Telnet,