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Datagram Transport Layer Security (DTLS) as Transport for Session Traversal Utilities for NAT (STUN) (RFC7350) Disclosure Number: IPCOM000238445D
Original Publication Date: 2014-Aug-01
Included in the Prior Art Database: 2014-Aug-27
Document File: 32 page(s) / 28K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Petit-Huguenin: AUTHOR [+1]


STUN [RFC5389] defines Transport Layer Security (TLS) over TCP (simply referred to as TLS [RFC5246]) as the transport for STUN due to additional security advantages it offers over plain UDP or TCP transport. But, TCP (and thus TLS-over-TCP) is not an optimal transport when STUN is used for its originally intended purpose, which is to support multimedia sessions. This is a well documented and understood transport limitation for real-time communications.

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Internet Engineering Task Force (IETF)                 M. Petit-Huguenin Request for Comments: 7350                           Jive Communications Updates: 5389, 5928                                         G. Salgueiro Category: Standards Track                                  Cisco Systems ISSN: 2070-1721                                              August 2014

          Datagram Transport Layer Security (DTLS) as Transport              for Session Traversal Utilities for NAT (STUN)


   This document specifies the usage of Datagram Transport Layer    Security (DTLS) as a transport protocol for Session Traversal    Utilities for NAT (STUN).  It provides guidance on when and how to    use DTLS with the currently standardized STUN usages.  It also    specifies modifications to the STUN and Traversal Using Relay NAT    (TURN) URIs and to the TURN resolution mechanism to facilitate the    resolution of STUN and TURN URIs into the IP address and port of STUN    and TURN servers supporting DTLS as a transport protocol.  This    document updates RFCs 5389 and 5928.

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 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Petit-Huguenin & Salgueiro   Standards Track                    [Page 1]
 RFC 7350                     STUN over DTLS                  August 2014

 Copyright Notice

   Copyright (c) 2014 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

   2.  Terminology . . . . . . . . . . . . . . . . . . . . ....