RADIUS EXTensions (radext)

In addition to this official charter maintained by the IETF Secretariat, there is additional information about this working group on the Web at:

       Additional RADEXT Web Page

Last Modified: 2008-08-21

Additional information is available at tools.ietf.org/wg/radext

Chair(s):

  • Bernard Aboba <Bernard_Aboba@hotmail.com>

  • David Nelson <d.b.nelson@comcast.net>

    Operations and Management Area Director(s):

  • Dan Romascanu <dromasca@avaya.com>
  • Ronald Bonica <rbonica@juniper.net>

    Operations and Management Area Advisor:

  • Dan Romascanu <dromasca@avaya.com>

    Technical Advisor(s):

  • Paul Congdon <paul.congdon@hp.com>

    Mailing Lists:

    General Discussion: radiusext@ops.ietf.org
    To Subscribe: radiusext-request@ops.ietf.org
    In Body: In Body: subscribe
    Archive: https://ops.ietf.org/lists/radiusext

    Description of Working Group:

    The RADIUS Extensions Working Group will focus on extensions to the
    RADIUS protocol required to define extensions to the standard
    attribute space as well as to address cryptographic algorithm
    agility and use over new transports. In addition, RADEXT will
    work on RADIUS Design Guidelines and define new attributes for
    particular applications of authentication, authorization and
    accounting such as NAS management and local area network (LAN) usage.

    In order to enable interoperation of heterogeneous RADIUS/Diameter
    deployments, all RADEXT WG work items MUST contain a Diameter
    compatibility section, outlining how interoperability with
    Diameter will be maintained.

    Furthermore, to ensure backward compatibility with existing RADIUS
    implementations, as well as compatibility between RADIUS and Diameter,
    the following restrictions are imposed on extensions considered by the
    RADEXT WG:

    - All documents produced MUST specify means of interoperation with
    legacy RADIUS and, if possible, be backward
    compatible with existing RADIUS RFCs, including RFCs 2865-2869,
    3162, 3575, 3579, 3580, 4668-4673,4675, 5080, 5090 and 5176.
    Transport profiles should, if possible, be compatible with RFC 3539.

    - All RADIUS work MUST be compatible with equivalent facilities in
    Diameter. Where possible, new attributes should be defined so that
    the same attribute can be used in both RADIUS and Diameter without
    translation. In other cases a translation considerations
    section should be included in the specification.


    Work Items

    The immediate goals of the RADEXT working group are to address the
    following issues:

    - RADIUS design guidelines. This document will provide guidelines for
    design of RADIUS attributes. It will specifically consider how
    complex data types may be introduced in a robust manner, maintaining
    backwards compatibility with existing RADIUS RFCs, across all the
    classes of attributes: Standard, Vendor-Specific and SDO-Specific.
    In addition, it will review RADIUS data types and associated
    backwards compatibility issues.

    - RADIUS Management authorization. This document will define the
    use of RADIUS for NAS management over IP.

    -RADIUS attribute space extension. The standard RADIUS attribute
    space is currently being depleted. This document will provide
    additional standard attribute space, while maintaining backward
    compatibility with existing attributes.

    -RADIUS Cryptographic Algorithm Agility. RADIUS has traditionally
    relied on MD5 for both per-packet integrity and authentication as well
    as attribute confidentiality. Given the increasingly successful
    attacks being mounted against MD5, the ability to support
    alternative algorithms is required. This work item will
    include documentation of RADIUS crypto-agility requirements,
    as well as development of one or more Experimental RFCs providing
    support for negotiation of alternative cryptographic algorithms
    to protect RADIUS.

    - IEEE 802 attributes. New attributes have been proposed to
    support IEEE 802 standards for wired and wireless LANs. This
    work item will support authentication, authorization and
    accounting attributes needed by IEEE 802 groups including
    IEEE 802.1, IEEE 802.11 and IEEE 802.16.

    - New RADIUS transports. A reliable transport profile for
    RADIUS will be developed, as well as specifications for
    Secure transports, including TCP/TLS (RADSEC) and UDP/DTLS.

    - Documentation of Status-Server usage. A document
    describing usage of the Status-Server facility will be
    developed.

    Goals and Milestones:

    Done  Updates to RFC 2618-2621 RADIUS MIBs submitted for publication
    Done  SIP RADIUS authentication draft submitted as a Proposed Standard RFC
    Done  RFC 2486bis submitted as a Proposed Standard RFC
    Done  RFC 3576 MIBs submitted as an Informational RFC
    Done  RADIUS VLAN and Priority Attributes draft submitted as a Proposed Standard RFC (reduced in scope)
    Done  RADIUS Implementation Issues and Fixes draft submitted as an Informational RFC
    Done  RADIUS Filtering Attributes draft submitted as a Proposed Standard RFC (split out from VLAN & Priority draft)
    Done  RFC 3576bis submitted as an Informational RFC (split out from Issues & Fixes draft)
    Done  RADIUS Redirection Attributes draft submitted as a Proposed Standard RFC (split out from VLAN & Priority draft)
    Jun 2008  RADIUS Design Guidelines submitted as a Best Current Practice RFC
    Jun 2008  RADIUS Management Authorization I-D submitted as a Proposed Standard RFC
    Sep 2008  Extended Attributes I-D submitted as a Proposed Standard RFC
    Sep 2008  RADIUS Crypto-agility Requirements submitted as an Informational RFC
    Dec 2008  IEEE 802 Attributes I-D submitted as a Proposed Standard RFC
    Jan 2009  Reliable Transport Profile for RADIUS I-D submitted as a Proposed Standard RFC
    Mar 2009  Status-Server I-D submitted as a Proposed Standard RFC
    Mar 2009  RADSEC (RADIUS over TCP/TLS) draft submitted as an Experimental RFC
    Jun 2009  RADIUS Cryptographic Algorithm Agility I-D submitted as an Experimental RFC
    Jun 2009  RADIUS over DTLS I-D submitted as an Experimental RFC

    Internet-Drafts:

    Remote Authentication Dial-In User Service (RADIUS) Authorization for Network Access Server (NAS) Management (52345 bytes)
    RADIUS Design Guidelines (84482 bytes)
    Extended Remote Authentication Dial In User Service (RADIUS) Attributes (26392 bytes)
    Crypto-Agility Requirements for Remote Dial-In User Service (RADIUS) (17068 bytes)
    TLS encryption for RADIUS over TCP (RadSec) (35441 bytes)
    Use of Status-Server Packets in the Remote Authentication Dial In User Service (RADIUS) Protocol (63499 bytes)

    Request For Comments:

    The Network Access Identifier (RFC 4282) (34421 bytes) obsoletes RFC 2486
    Chargeable User Identity (RFC 4372) (21555 bytes)
    RADIUS Extension for Digest Authentication (RFC 4590) (67181 bytes) obsoleted by RFC 5090
    RADIUS Authentication Client MIB for IPV6 (RFC 4668) (48252 bytes) obsoletes RFC 2618
    RADIUS Authentication Server MIB for IPv6 (RFC 4669) (50525 bytes) obsoletes RFC 2619
    RADIUS Accounting Server MIB for IPv6 (RFC 4671) (47694 bytes) obsoletes RFC 2621
    RADIUS Accounting Client MIB for IPv6 (RFC 4670) (44667 bytes) obsoletes RFC 2620
    RADIUS Dynamic Authorization Client MIB (RFC 4672) (50817 bytes)
    RADIUS Dynamic Authorization Server MIB (RFC 4673) (47635 bytes)
    RADIUS Attributes for Virtual LAN and Priority Support (RFC 4675) (29751 bytes)
    RADIUS Delegated-IPv6-Prefix Attribute (RFC 4818) (12993 bytes)
    RADIUS Filter Rule Attribute (RFC 4849) (18162 bytes)
    Common Remote Authentication Dial In User Service (RADIUS) Implementation Issues and Suggested Fixes (RFC 5080) (64138 bytes) updates RFC 2865,RFC 2866,RFC 2869,RFC 3579
    Dynamic Authorization Extensions to Remote Authentication Dial In User Service (RADIUS) (RFC 5176) (79541 bytes) obsoletes RFC 3576
    RADIUS Extension for Digest Authentication (RFC 5090) (68299 bytes) obsoletes RFC 4590
    IETF Secretariat - Please send questions, comments, and/or suggestions to ietf-web@ietf.org.

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