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RADIUS Extensions for IP Port Configuration and Reporting (RFC8045)

IP.com Disclosure Number: IPCOM000249018D
Original Publication Date: 2017-Jan-01
Included in the Prior Art Database: 2017-Jan-26
Document File: 86 page(s) / 85K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

D. Cheng: AUTHOR [+4]


In a broadband network, customer information is usually stored on a RADIUS server [RFC2865]. At the time when a user initiates an IP connection request, if this request is authorized, the RADIUS server will populate the user's configuration information to the Network Access Server (NAS), which is often referred to as a Broadband Network Gateway (BNG) in broadband access networks. The Carrier- Grade NAT (CGN) function may also be implemented on the BNG. Within this document, the CGN may perform Network Address Translation from IPv4 Clients to IPv4 Servers (NAT44) [RFC3022], NAT from IPv6 Clients to IPv4 Servers (NAT64) [RFC6146], or Dual-Stack Lite Address Family Transition Router (AFTR) [RFC6333] function. In such case, the CGN IP transport port (e.g., TCP/UDP port) mapping behaviors can be part of the configuration information sent from the RADIUS server to the NAS/BNG. As part of the accounting information sent from the NAS/BNG to a RADIUS server, the NAS/BNG may also report the IP port mapping behavior applied by the CGN to a user session.

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Internet Engineering Task Force (IETF)                          D. Cheng Request for Comments: 8045                                        Huawei Category: Standards Track                                    J. Korhonen ISSN: 2070-1721                                     Broadcom Corporation                                                             M. Boucadair                                                                   Orange                                                             S. Sivakumar                                                            Cisco Systems                                                             January 2017

        RADIUS Extensions for IP Port Configuration and Reporting


   This document defines three new RADIUS attributes.  For devices that    implement IP port ranges, these attributes are used to communicate    with a RADIUS server in order to configure and report IP transport    ports as well as mapping behavior for specific hosts.  This mechanism    can be used in various deployment scenarios such as Carrier-Grade    NAT, IPv4/IPv6 translators, Provider WLAN gateway, etc.  This    document defines a mapping between some RADIUS attributes and IP Flow    Information Export (IPFIX) Information Element identifiers.

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 7841.

   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/rfc8045.

 Cheng, et al.                Standards Track                    [Page 1]
 RFC 8045              RADIUS Extensions for IP Port         January 2017

 Copyright Notice

   Copyright (c) 2017 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...