Datagram Transport Layer Security (DTLS) as Transport for Session Traversal Utilities for NAT (STUN) (RFC7350)
Original Publication Date: 2014-Aug-01
Included in the Prior Art Database: 2014-Aug-27
Internet Society Requests For Comment (RFCs)
M. Petit-Huguenin: AUTHOR [+2]
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.
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 http://www.rfc-editor.org/info/rfc7350.
Petit-Huguenin & Salgueiro Standards Track [Page 1]
RFC 7350 STUN over DTLS August 2014
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . ....