PCP Working Group                                           M. Boucadair
Internet-Draft                                            France Telecom
Intended status: Standards Track                               F. Dupont
Expires: February 4, 2013                    Internet Systems Consortium
                                                                R. Penno
                                                                 D. Wing
                                                                   Cisco
                                                          August 3, 2012


   Universal Plug and Play (UPnP) Internet Gateway Device (IGD)-Port
              Control Protocol (PCP) Interworking Function
                draft-ietf-pcp-upnp-igd-interworking-02

Abstract

   This document specifies the behavior of the UPnP IGD (Internet
   Gateway Device)/PCP Interworking Function.  An UPnP IGD-PCP
   Interworking Function (IGD-PCP IWF) is required to be embedded in CP
   routers to allow for transparent NAT control in environments where
   UPnP IGD is used in the LAN side and PCP in the external side of the
   CP router.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
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   This Internet-Draft will expire on February 4, 2013.

Copyright Notice




Boucadair, et al.       Expires February 4, 2013                [Page 1]

Internet-Draft     UPnP IGD-PCP Interworking Function        August 2012


   Copyright (c) 2012 IETF Trust and the persons identified as the
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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4

   2.  Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . .  4

   3.  Architecture Model . . . . . . . . . . . . . . . . . . . . . .  5

   4.  UPnP IGD-PCP Interworking Function: Overview . . . . . . . . .  7
     4.1.  UPnP IGD-PCP: State Variables  . . . . . . . . . . . . . .  7
     4.2.  IGD-PCP: Methods . . . . . . . . . . . . . . . . . . . . .  8
     4.3.  UPnP IGD-PCP: Errors . . . . . . . . . . . . . . . . . . .  9

   5.  Specification of the IGD-PCP Interworking Function . . . . . . 10
     5.1.  PCP Server Discovery . . . . . . . . . . . . . . . . . . . 11
     5.2.  Control of the Firewall  . . . . . . . . . . . . . . . . . 11
     5.3.  NAT Control in LAN Side  . . . . . . . . . . . . . . . . . 11
     5.4.  Port Mapping Tables  . . . . . . . . . . . . . . . . . . . 11
     5.5.  Interworking Function Without NAT in the IGD . . . . . . . 11
     5.6.  NAT Embedded in the IGD  . . . . . . . . . . . . . . . . . 12
     5.7.  Creating a Mapping . . . . . . . . . . . . . . . . . . . . 12
       5.7.1.  AddAnyPortMapping()  . . . . . . . . . . . . . . . . . 13
       5.7.2.  AddPortMapping() . . . . . . . . . . . . . . . . . . . 14
     5.8.  Listing One or a Set of Mappings . . . . . . . . . . . . . 17
     5.9.  Delete One or a Set of Mappings: DeletePortMapping()
           or DeletePortMappingRange()  . . . . . . . . . . . . . . . 17