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RADIUS Extensions for Dual-Stack Lite (RFC6519)

IP.com Disclosure Number: IPCOM000214929D
Original Publication Date: 2012-Feb-01
Included in the Prior Art Database: 2012-Feb-15
Document File: 22 page(s) / 23K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

R. Maglione: AUTHOR [+2]


Dual-Stack Lite [RFC6333] is a solution to offer both IPv4 and IPv6 connectivity to customers that are addressed only with an IPv6 prefix (no IPv4 address is assigned to the attachment device). One of its key components is an IPv4-over-IPv6 tunnel, but a Dual-Stack-Lite Basic Bridging BroadBand (B4) element will not know if the network to which it is attached offers Dual-Stack Lite support. Even if the B4 did know, it would not know the remote end of the tunnel to which it could establish a connection.

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Internet Engineering Task Force (IETF)                       R. Maglione Request for Comments: 6519                                Telecom Italia Category: Standards Track                                      A. Durand ISSN: 2070-1721                                         Juniper Networks                                                            February 2012

                  RADIUS Extensions for Dual-Stack Lite


   Dual-Stack Lite is a solution to offer both IPv4 and IPv6

   connectivity to customers that are addressed only with an IPv6

   prefix.  Dual-Stack Lite requires pre-configuration of the Dual-Stack

   Lite Address Family Transition Router (AFTR) tunnel information on

   the Basic Bridging BroadBand (B4) element.  In many networks, the

   customer profile information may be stored in Authentication,

   Authorization, and Accounting (AAA) servers, while client

   configurations are mainly provided through the Dynamic Host

   Configuration Protocol (DHCP).  This document specifies a new Remote

   Authentication Dial-In User Service (RADIUS) attribute to carry the

   Dual-Stack Lite AFTR tunnel name; the RADIUS attribute is defined

   based on the equivalent DHCPv6 OPTION_AFTR_NAME option.  This RADIUS

   attribute is meant to be used between the RADIUS server and the

   Network Access Server (NAS); it is not intended to be used directly

   between the B4 element and the RADIUS server.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc6519.

Maglione & Durand            Standards Track                    [Page 1]
 RFC 6519                DS-Lite RADIUS Extensions          February 2012

 Copyright Notice

   Copyright (c) 2012 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    (http://trustee.ietf.org/license-info) in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from ...