Router Advertisement Prefix Option Extension for On-Demand Mobility
draft-feng-dmm-ra-prefixtype-01

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Last updated 2017-11-27
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DMM Working Group                                                W. Feng
Internet-Draft                                                       PSU
Intended status: Standards Track                                D. Moses
Expires: May 29, 2018                                              Intel
                                                       November 25, 2017

  Router Advertisement Prefix Option Extension for On-Demand Mobility
                    draft-feng-dmm-ra-prefixtype-01

Abstract

   Router Advertisement / Router Solicitation is one of the ways for
   hosts to establish network IPv6 connectivity configuration.  This
   document describes an extension to the router advertisement prefix
   information option to allow the router to specify mobility service
   type availability to mobile hosts.  Mobile hosts can then configure
   their IP address to the preferred type of mobile connectivity.

Status of This Memo

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   This Internet-Draft will expire on May 29, 2018.

Copyright Notice

   Copyright (c) 2017 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
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   include Simplified BSD License text as described in Section 4.e of

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Internet-DraftRouter Advertisement Prefix Option Extension November 2017

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Notational Conventions  . . . . . . . . . . . . . . . . . . .   2
   3.  Router Advertisement Prefix Information Option  . . . . . . .   2
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   4
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   4
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   5
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   [I-D.ietf-dmm-ondemand-mobility] defines different types of mobility
   related network services provided by access network to mobile hosts.
   In particular, it defines different types of prefix continuity types
   as mobile nodes move between different points of attachments.

   This document defines extensions to the prefix information option in
   the router advertisement message ([RFC4861]) to allow the router to
   convey mobility services associated with an Ipv6 prefix.

2.  Notational Conventions

   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 [RFC2119].

3.  Router Advertisement Prefix Information Option

   IP prefixes are conveyed in Router Advertisement messages through the
   Prefix Information Option field ([RFC4861]).  These prefix
   information option fields are used to allow hosts to configure their
   IPv6 addresses.

   For distributed mobility management, there is a need for a network to
   be able to convey different prefixes for different connectivity
   scenarios.  [I-D.ietf-dmm-ondemand-mobility] defines different
   service continuity requirements including: Non-Persistent, Session-
   Lasting, Fixed, and Graceful-replacement.  Currently, however, there
   is no way for a router to specify the continuity type through a
   router advertisement message.

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   This document proposes modifying the prefix information option within
   the router advertisement message to include mobility service options
   that it is offering to mobile hosts that are attached.

   The modified prefix information option fields are shown in the
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