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RADIUS over TCP (RFC6613) Disclosure Number: IPCOM000218245D
Original Publication Date: 2012-May-01
Included in the Prior Art Database: 2012-May-30
Document File: 32 page(s) / 38K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People



The RADIUS protocol is defined in [RFC2865] as using the User Datagram Protocol (UDP) for the underlying transport layer. While there are a number of benefits to using UDP as outlined in [RFC2865], Section 2.4, there are also some limitations:

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Internet Engineering Task Force (IETF)                          A. DeKok Request for Comments: 6613                                    FreeRADIUS Category: Experimental                                          May 2012 ISSN: 2070-1721

                             RADIUS over TCP


   The Remote Authentication Dial-In User Server (RADIUS) protocol has,    until now, required the User Datagram Protocol (UDP) as the    underlying transport layer.  This document defines RADIUS over the    Transmission Control Protocol (RADIUS/TCP), in order to address    handling issues related to RADIUS over Transport Layer Security    (RADIUS/TLS).  It permits TCP to be used as a transport protocol for    RADIUS only when a transport layer such as TLS or IPsec provides    confidentiality and security.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for examination, experimental implementation, and    evaluation.

   This document defines an Experimental Protocol for the Internet    community.  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).  Not    all documents approved by the IESG are a candidate for any level of    Internet Standard; see 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

DeKok                         Experimental                      [Page 1]
 RFC 6613                     RADIUS over TCP                    May 2012

 Copyright Notice

   Copyright (c) 2012 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    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    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

      1.1. Applicability of Reliable Transport ........................4

      1.2. Terminology .............................................