Address Protected Neighbor Discovery for Low-power and Lossy Networks
draft-ietf-6lo-ap-nd-02

Document Type Active Internet-Draft (6lo WG)
Last updated 2017-05-24
Replaces draft-sarikaya-6lo-ap-nd
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6lo                                                          B. Sarikaya
Internet-Draft                                                Huawei USA
Updates: 6775 (if approved)                                   P. Thubert
Intended status: Standards Track                                   Cisco
Expires: November 25, 2017                                      M. Sethi
                                                                Ericsson
                                                            May 24, 2017

 Address Protected Neighbor Discovery for Low-power and Lossy Networks
                        draft-ietf-6lo-ap-nd-02

Abstract

   This document defines an extension to 6LoWPAN Neighbor Discovery, RFC
   6775.  Nodes supporting this extension compute a cryptographic Owner
   Unique Interface ID and associate it with one or more of their
   Registered Addresses.  Once an address is registered with a
   Cryptographic ID, only the owner of that ID can modify the anchor
   state information of the Registered Address, and Source Address
   Validation can be enforced.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on November 25, 2017.

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
   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

Sarikaya, et al.        Expires November 25, 2017               [Page 1]
Internet-Draft        Address Protection ND for LLN             May 2017

   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Updating RFC 6775 . . . . . . . . . . . . . . . . . . . . . .   4
   4.  New Fields and Options  . . . . . . . . . . . . . . . . . . .   5
     4.1.  New Crypto-ID . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Updated EARO  . . . . . . . . . . . . . . . . . . . . . .   6
     4.3.  New Crypto-ID Parameters Option . . . . . . . . . . . . .   7
   5.  Protocol Overview . . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  Protocol Scope  . . . . . . . . . . . . . . . . . . . . .   8
     5.2.  Protocol Flows  . . . . . . . . . . . . . . . . . . . . .   9
     5.3.  Multihop Operation  . . . . . . . . . . . . . . . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   7.  IANA considerations . . . . . . . . . . . . . . . . . . . . .  13
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   9.  Change Log  . . . . . . . . . . . . . . . . . . . . . . . . .  13
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     10.2.  Informative references . . . . . . . . . . . . . . . . .  14
   Appendix A.  Requirements Addressed in this Document  . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   Neighbor discovery for IPv6 [RFC4861] and stateless address
   autoconfiguration [RFC4862] and their extensions are collectively
   referred to as the IPv6 Neighbor Discovery Protocol (IPv6 NDP).  In
   order to enable IPv6 NDP operations over a constrained low-power and
   lossy network (LLN), "Neighbor Discovery optimizations for 6LoWPAN
   networks" [RFC6775] (6LoWPAN ND), reduces the use of multicast in the
   original protocol and introduces a unicast host address registration
   technique.  The registration mechanism leverages a new Address
   Registration Option (ARO) that is carried in the unicast Neighbor
   Solicitation (NS) and Neighbor Advertisement (NA) messages between
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