DTLS Encapsulation of SCTP Packets
draft-ietf-tsvwg-sctp-dtls-encaps-08

The information below is for an old version of the document
Document Type Active Internet-Draft (tsvwg WG)
Last updated 2015-01-22 (latest revision 2015-01-15)
Replaces draft-tuexen-tsvwg-sctp-dtls-encaps
Stream IETF
Intended RFC status Proposed Standard
Formats plain text pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Gorry Fairhurst
Shepherd write-up Show (last changed 2014-12-06)
IESG IESG state Approved-announcement to be sent::Revised I-D Needed
Consensus Boilerplate Yes
Telechat date
Responsible AD Spencer Dawkins
Send notices to gorry@erg.abdn.ac.uk, tsvwg-chairs@tools.ietf.org, tsvwg@ietf.org, draft-ietf-tsvwg-sctp-dtls-encaps.all@tools.ietf.org
IANA IANA review state IANA OK - No Actions Needed
Network Working Group                                          M. Tuexen
Internet-Draft                          Muenster Univ. of Appl. Sciences
Intended status: Standards Track                              R. Stewart
Expires: July 19, 2015                                     Netflix, Inc.
                                                                R. Jesup
                                                WorldGate Communications
                                                               S. Loreto
                                                                Ericsson
                                                        January 15, 2015

                   DTLS Encapsulation of SCTP Packets
                draft-ietf-tsvwg-sctp-dtls-encaps-08.txt

Abstract

   The Stream Control Transmission Protocol (SCTP) is a transport
   protocol originally defined to run on top of the network protocols
   IPv4 or IPv6.  This document specifies how SCTP can be used on top of
   the Datagram Transport Layer Security (DTLS) protocol.  Using the
   encapsulation method described in this document, SCTP is unaware of
   the protocols being used below DTLS; hence explicit IP addresses
   cannot be used in the SCTP control chunks.  As a consequence, the
   SCTP associations carried over DTLS can only be single homed.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on July 19, 2015.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Tuexen, et al.            Expires July 19, 2015                 [Page 1]
Internet-Draft               SCTP over DTLS                 January 2015

   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 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.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Encapsulation and Decapsulation Procedure . . . . . . . . . .   3
   4.  General Considerations  . . . . . . . . . . . . . . . . . . .   3
   5.  DTLS Considerations . . . . . . . . . . . . . . . . . . . . .   3
   6.  SCTP Considerations . . . . . . . . . . . . . . . . . . . . .   4
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   6
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   Appendix A.  NOTE to the RFC-Editor . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Overview

   The Stream Control Transmission Protocol (SCTP) as defined in
   [RFC4960] is a transport protocol running on top of the network
   protocols IPv4 [RFC0791] or IPv6 [RFC2460].  This document specifies
   how SCTP is used on top of the Datagram Transport Layer Security
   (DTLS) protocol.  DTLS 1.0 is defined in [RFC4347] and the present
   latest version, DTLS 1.2, is defined in [RFC6347].  This
   encapsulation is used for example within the WebRTC protocol suite
   (see [I-D.ietf-rtcweb-overview] for an overview) for transporting
   non-SRTP data between browsers.  The architecture of this stack is
   described in [I-D.ietf-rtcweb-data-channel].

                               +----------+
                               |   SCTP   |
                               +----------+
                               |   DTLS   |
                               +----------+
                               | ICE/UDP  |
                               +----------+

                       Figure 1: Basic stack diagram

Tuexen, et al.            Expires July 19, 2015                 [Page 2]
Internet-Draft               SCTP over DTLS                 January 2015

   This encapsulation of SCTP over DTLS over or UDP or ICE/UDP (see
Show full document text