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RADIUS Attribute for 4rd
draft-jiang-softwire-4rd-radius-04

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Last updated: 2014-02-14
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Network Working Group                             Sheng Jiang (Editor)
Internet Draft                                                   Yu Fu
Intended status: Standards Track                              Bing Liu
Expires: August 18, 2014                  Huawei Technologies Co., Ltd
                                                     February 14, 2014

                        RADIUS Attribute for 4rd

                 draft-jiang-softwire-4rd-radius-04.txt

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   This Internet-Draft will expire on August 18, 2014.

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Jiang, et al.         Expires August 18, 2014                [Page 1]
Internet-Draft   draft-jiang-softwire-4rd-radius-04        February 2014

Abstract

   IPv4 Residual Deployment via IPv6 (4rd) is a stateless mechanism for
   running IPv4 over IPv6-only infrastructure. It provides both IPv4 and
   IPv6 connectivity services simultaneously during the IPv4/IPv6 co-
   existing period. The Dynamic Host Configuration Protocol for IPv6
   (DHCPv6) 4rd options has been defined to configure 4rd Customer Edge
   (CE). However, in many networks, the configuration information may be
   stored in Authentication Authorization and Accounting (AAA) servers
   while user configuration is mainly from Broadband Network Gateway
   (BNG) through DHCPv6 protocol. This document defines a Remote
   Authentication Dial In User Service (RADIUS) attribute that carries
   4rd configuration information from AAA server to BNG. The 4rd RADIUS
   attribute are designed following the simplify principle. It provides
   just enough information to form the correspondent DHCPv6 4rd option.

Table of Contents

   1. Introduction ................................................. 3
   2. Terminology .................................................. 3
   3. 4rd Configuration process with RADIUS ........................ 3
   4. Attributes ................................................... 6
      4.1. 4rd-Configuration Attribute ............................. 6
      4.2. 4rd Non-mapping-rule Parameter option ................... 7
      4.3. 4rd Rule Options ........................................ 7
      4.4. 4rd Rule Sub Options .................................... 8
         4.4.1. Rule-IPv6-Prefix Sub Option ........................ 8
         4.4.2. Rule-IPv6-Suffix Sub Option ........................ 9
         4.4.3. Rule-IPv4-Prefix Sub Option ....................... 10
         4.4.4. Misc Sub Option ................................... 11
      4.5. Table of attributes .................................... 11
   5. Diameter Considerations ..................................... 12
   6. Security Considerations ..................................... 12
   7. IANA Considerations ......................................... 12
   8. Acknowledgments ............................................. 13
   9. References .................................................. 13
      9.1. Normative References ................................... 13
      9.2. Informative References ................................. 13

Jiang, et al.         Expires August 18, 2014                [Page 2]
Internet-Draft   draft-jiang-softwire-4rd-radius-04        February 2014

1. Introduction

   Recently providers start to deploy IPv6 and consider how to transit
   to IPv6. IPv4 Residual Deployment via IPv6 (4rd)
   [I-D.ietf-softwire-4rd] is a stateless mechanism for running IPv4
   over IPv6-only infrastructure. It provides both IPv4 and IPv6

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