RADIUS Attributes for Address plus Port (A+P) based Softwire Mechanisms
draft-ietf-softwire-map-radius-26

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Softwire                                                   S. Jiang, Ed.
Internet-Draft                              Huawei Technologies Co., Ltd
Intended status: Standards Track                              Y. Fu, Ed.
Expires: December 16, 2019                                         CNNIC
                                                                  C. Xie
                                                           China Telecom
                                                                   T. Li
                                                     Tsinghua University
                                                       M. Boucadair, Ed.
                                                                  Orange
                                                           June 14, 2019

RADIUS Attributes for Address plus Port (A+P) based Softwire Mechanisms
                   draft-ietf-softwire-map-radius-26

Abstract

   IPv4-over-IPv6 transition mechanisms provide IPv4 connectivity
   services over IPv6 native networks during the IPv4/IPv6 co-existence
   period.  DHCPv6 options have been defined for configuring clients for
   Lightweight 4over6, Mapping of Address and Port with Encapsulation,
   and Mapping of Address and Port using Translation unicast softwire
   mechanisms, and also multicast softwires.  However, in many networks,
   configuration information is stored in an Authentication,
   Authorization, and Accounting server which utilizes the RADIUS
   protocol to provide centralized management for users.  When a new
   transition mechanism is developed, new RADIUS attributes need to be
   defined correspondingly.

   This document defines new RADIUS attributes to carry Address plus
   Port based softwire configuration parameters from an Authentication,
   Authorization, and Accounting server to a Broadband Network Gateway.
   Both unicast and multicast attributes are covered.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any

Jiang, Ed., et al.      Expires December 16, 2019               [Page 1]
Internet-Draft            A+P RADIUS Attributes                June 2019

   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 16, 2019.

Copyright Notice

   Copyright (c) 2019 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
   (https://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
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  New RADIUS Attributes . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Softwire46-Configuration Attribute  . . . . . . . . . . .   7
       3.1.1.  Softwire46 Attributes . . . . . . . . . . . . . . . .   8
         3.1.1.1.  Softwire46-MAP-E Attribute  . . . . . . . . . . .  10
         3.1.1.2.  Softwire46-MAP-T Attribute  . . . . . . . . . . .  10
         3.1.1.3.  Softwire46-Lightweight-4over6 Attribute . . . . .  11
       3.1.2.  Softwire46 Sub-Attributes . . . . . . . . . . . . . .  11
       3.1.3.  Specification of the Softwire46 Sub-Attributes  . . .  12
         3.1.3.1.  Softwire46-Rule Attribute . . . . . . . . . . . .  12
         3.1.3.2.  Softwire46-BR Attribute . . . . . . . . . . . . .  13
         3.1.3.3.  Softwire46-DMR Attribute  . . . . . . . . . . . .  14
         3.1.3.4.  Softwire46-V4V6Bind Attribute . . . . . . . . . .  14
         3.1.3.5.  Softwire46-PORTPARAMS Attribute . . . . . . . . .  15
       3.1.4.  Sub-Attributes for Sofwtire46-Rule  . . . . . . . . .  16
         3.1.4.1.  Rule-IPv6-Prefix Attribute  . . . . . . . . . . .  16
         3.1.4.2.  Rule-IPv4-Prefix Attribute  . . . . . . . . . . .  17
         3.1.4.3.  EA-Length Attribute . . . . . . . . . . . . . . .  17
       3.1.5.  Attributes for Softwire46-v4v6Bind  . . . . . . . . .  18
         3.1.5.1.  IPv4-Address Attribute  . . . . . . . . . . . . .  18