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Dynamic Host Configuration Protocol (DHCP) Options for Broadcast and Multicast Control Servers
RFC 4280

Network Working Group                                       K. Chowdhury
Request for Comments: 4280                              Starent Networks
Category: Standards Track                                      P. Yegani
                                                           Cisco Systems
                                                               L. Madour
                                                                Ericsson
                                                           November 2005

         Dynamic Host Configuration Protocol (DHCP) Options for
                Broadcast and Multicast Control Servers

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2005).

Abstract

   This document defines new options to discover the Broadcast and
   Multicast Service (BCMCS) controller in an IP network.  BCMCS is
   being developed for Third generation (3G) cellular telephone
   networks.  Users of the service interact with a controller in the
   network via the Mobile Node (MN) to derive information required to
   receive Broadcast and Multicast Service.  Dynamic Host Configuration
   Protocol can be used to configure the MN to access a particular
   controller.  This document defines the related options and option
   codes.

Chowdhury, et al.           Standards Track                     [Page 1]
RFC 4280                 DHCP Options for BMCS             November 2005

Table of Contents

   1. Motivation ......................................................2
   2. Overview of the 3GPP2 BCMCS Network .............................3
   3. Terminology .....................................................4
   4. Broadcast and Multicast Service Controller Options ..............4
      4.1. Broadcast and Multicast Service Controller Domain
           Name List for DHCPv4 .......................................4
      4.2. Broadcast and Multicast Service Controller Domain
           Name List Option for DHCPv6 ................................5
      4.3. Broadcast and Multicast Service Controller IPv4
           Address Option for DHCPv4 ..................................6
      4.4. Broadcast and Multicast Service Controller IPv6
           Address Option for DHCPv6 ..................................6
      4.5. Consideration for Client Operation .........................7
      4.6. Consideration for Server Operation .........................7
   5. Security Considerations .........................................8
   6. IANA Considerations .............................................8
   7. Acknowledgements ................................................8
   8. Normative References ............................................9

1.  Motivation

   Dynamic Host Configuration Protocol [RFC2131] and [RFC3315] can be
   used to configure various non-IP address type of parameters.  These
   parameters are required for normal operation of various services that
   are offered over an IP network.

   Broadcast and Multicast Service (BCMCS) is one such service that is
   being standardized in various mobile wireless standard bodies such as
   Third Generation Partnership Project 2 (3GPP2), Open Mobile Alliance
   (OMA), and 3GPP.  A description of the BCMCS as defined in 3GPP2 can
   be found in [BCMCS].

   While DHCP already defines many options for device configuration, no
   option exists for configuring a mobile device to use BCMCS.  This
   memo defines extensions for both DHCPv4 and DHCPv6 so that DHCP can
   be used to provide necessary configuration information to a mobile
   device about the BCMCS controllers.

   DHCP is being used in 3GPP2, to assist Mobile Nodes (MNs) with the
   discovery of the BCMCS Controller in a mobile operator's IP network.
   The BCMCS includes a controller component that is responsible for
   managing the service via interaction with the MN and other network
   entities.  In this document, we will call this a BCMCS controller.

Chowdhury, et al.           Standards Track                     [Page 2]
RFC 4280                 DHCP Options for BMCS             November 2005

   An overview of the 3GPP2 BCMCS architecture is given in the next
   section.  It provides enough information to understand the basics of
   the 3GPP2 BCMCS operation.  Readers are encouraged to find a more
   detailed description in [BCMCS].

   As described in [BCMCS], the MNs are required to know the IPv4 or the

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