Datagram Transport Layer Security (DTLS) Transport Mapping for Syslog
RFC 6012

Internet Engineering Task Force (IETF)                        J. Salowey
Request for Comments: 6012                           Cisco Systems, Inc.
Category: Standards Track                                       T. Petch
ISSN: 2070-1721                                 Engineering Networks Ltd
                                                             R. Gerhards
                                                            Adiscon GmbH
                                                                 H. Feng
                                             Huaweisymantec Technologies
                                                            October 2010

 Datagram Transport Layer Security (DTLS) Transport Mapping for Syslog

Abstract

   This document describes the transport of syslog messages over the
   Datagram Transport Layer Security (DTLS) protocol.  It provides a
   secure transport for syslog messages in cases where a connectionless
   transport is desired.

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/rfc6012.

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   described in the Simplified BSD License.

Salowey, et al.              Standards Track                    [Page 1]
RFC 6012            DTLS Transport Mapping for Syslog       October 2010

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Security Requirements for Syslog . . . . . . . . . . . . . . .  4
   4.  Using DTLS to Secure Syslog  . . . . . . . . . . . . . . . . .  4
   5.  Protocol Elements  . . . . . . . . . . . . . . . . . . . . . .  5
     5.1.  Transport  . . . . . . . . . . . . . . . . . . . . . . . .  5
     5.2.  Port and Service Code Assignment . . . . . . . . . . . . .  5
     5.3.  Initiation . . . . . . . . . . . . . . . . . . . . . . . .  5
       5.3.1.  Certificate-Based Authentication . . . . . . . . . . .  6
     5.4.  Sending Data . . . . . . . . . . . . . . . . . . . . . . .  6
       5.4.1.  Message Size . . . . . . . . . . . . . . . . . . . . .  7
     5.5.  Closure  . . . . . . . . . . . . . . . . . . . . . . . . .  7
   6.  Congestion Control . . . . . . . . . . . . . . . . . . . . . .  8
   7.  Security Policies  . . . . . . . . . . . . . . . . . . . . . .  8
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . .  8
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
     9.1.  DTLS Renegotiation . . . . . . . . . . . . . . . . . . . .  9
     9.2.  Message Loss . . . . . . . . . . . . . . . . . . . . . . .  9
     9.3.  Private Key Generation . . . . . . . . . . . . . . . . . .  9
     9.4.  Trust Anchor Installation and Storage  . . . . . . . . . .  9
   10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 10
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 10
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 10
     11.2. Informative References . . . . . . . . . . . . . . . . . . 11