RADIUS Extensions for Dual-Stack Lite (RFC6519)
Original Publication Date: 2012-Feb-01
Included in the Prior Art Database: 2012-Feb-15
Internet Society Requests For Comment (RFCs)
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.
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.
Durand Standards Track [Page 1]
RFC 6519 DS-Lite RADIUS Extensions February 2012
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