The Session Initiation Protocol (SIP) P-Private-Network-Indication Private Header (P-Header)
RFC 7316

Document Type RFC - Informational (July 2014; No errata)
Last updated 2014-07-29
Replaces draft-vanelburg-sipping-private-network-indication
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Internet Engineering Task Force (IETF)                     J. van Elburg
Request for Comments: 7316                    Detecon International Gmbh
Category: Informational                                         K. Drage
ISSN: 2070-1721                                           Alcatel-Lucent
                                                               M. Ohsugi
                                                             S. Schubert
                                                                 K. Arai
                                                                     NTT
                                                               July 2014

   The Session Initiation Protocol (SIP) P-Private-Network-Indication
                       Private Header (P-Header)

Abstract

   This document specifies the SIP P-Private-Network-Indication P-header
   used by the 3GPP.  The P-Private-Network-Indication indicates that
   the message is part of the message traffic of a private network and
   identifies that private network.  A private network indication allows
   nodes to treat private network traffic according to a different set
   of rules than the set applicable to public network traffic.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see 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/rfc7316.

van Elburg, et al.            Informational                     [Page 1]
RFC 7316               Private Network Indication              July 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
   (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. Introduction ....................................................3
      1.1. Overview ...................................................3
      1.2. Applicability ..............................................3
      1.3. Background .................................................3
      1.4. Business Communication .....................................3
      1.5. Indication Types ...........................................4
   2. Conventions .....................................................6
   3. Definitions .....................................................6
      3.1. Traffic ....................................................6
      3.2. Public Network Traffic .....................................6
      3.3. Private Network Traffic ....................................6
      3.4. Break-In ...................................................6
      3.5. Break-Out ..................................................6
      3.6. Trust Domain ...............................................6
   4. Application of Terminology ......................................7
   5. Overview of Solution ...........................................10
   6. Proxy Behavior .................................................11
      6.1. P-Private-Network-Indication Generation ...................11
      6.2. P-Private-Network-Indication Consumption ..................11
      6.3. P-Private-Network-Indication Removal ......................11
      6.4. P-Private-Network-Indication Verification .................11
   7. P-Private-Network-Indication Header Field Definition ...........12
   8. Security Considerations ........................................12
   9. IANA Considerations ............................................13
   10. Acknowledgments ...............................................13
   11. References ....................................................13
      11.1. Normative References .....................................13
      11.2. Informative References ...................................14

van Elburg, et al.            Informational                     [Page 2]
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