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Traversal Using Relays around NAT (TURN) Extensions for TCP Allocations (RFC6062) Disclosure Number: IPCOM000201995D
Original Publication Date: 2010-Nov-01
Included in the Prior Art Database: 2010-Dec-01
Document File: 26 page(s) / 29K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Perreault: AUTHOR [+2]


Traversal Using Relays around NAT (TURN) [RFC5766] is an extension to the Session Traversal Utilities for NAT [RFC5389] protocol. TURN allows for clients to communicate with a TURN server and ask it to allocate ports on one of its host interfaces, and then relay traffic between that port and the client itself. TURN, when used in concert with STUN and Interactive Connectivity Establishment (ICE) [RFC5245], forms a solution for NAT traversal for UDP-based media sessions.

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Internet Engineering Task Force (IETF)                 S. Perreault, Ed. Request for Comments: 6062                                      Viagenie Category: Standards Track                                   J. Rosenberg ISSN: 2070-1721                                                                                                November 2010

 Traversal Using Relays around NAT (TURN) Extensions for TCP Allocations


   This specification defines an extension of Traversal Using Relays    around NAT (TURN), a relay protocol for Network Address Translator    (NAT) traversal.  This extension allows a TURN client to request TCP    allocations, and defines new requests and indications for the TURN    server to open and accept TCP connections with the client's peers.    TURN and this extension both purposefully restrict the ways in which    the relayed address can be used.  In particular, it prevents users    from running general-purpose servers from ports obtained from the    TURN server.

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

Perreault & Rosenberg        Standards Track                    [Page 1]
 RFC 6062                        TURN TCP                   November 2010

 Copyright Notice

   Copyright (c) 2010 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.  Conventions  . . . . . . . . . . . . . . . . . . . . . . . . .  3

   3.  Overview of Operati...