Address Protected Neighbor Discovery for Low-power and Lossy Networks
draft-sarikaya-6lo-ap-nd-03

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Authors Mohit Sethi  , Pascal Thubert  , Behcet Sarikaya 
Last updated 2016-08-16
Replaced by RFC 8928, RFC 8928
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6lo                                                        M. Sethi, Ed.
Internet-Draft                                                  Ericsson
Updates: 6775 (if approved)                                   P. Thubert
Intended status: Standards Track                                   Cisco
Expires: February 17, 2017                                   B. Sarikaya
                                                              Huawei USA
                                                         August 16, 2016

 Address Protected Neighbor Discovery for Low-power and Lossy Networks
                      draft-sarikaya-6lo-ap-nd-03

Abstract

   This document defines an extension to 6LoWPAN Neighbor Discovery.
   This extension is designed for low-power and lossy network
   environments and it supports multi-hop operation.  Nodes supporting
   this extension compute a Cryptographically Unique Interface ID and
   associate it with one or more of their Registered Addresses.  The
   Cryptographic ID (Crypto-ID) uniquely identifies the owner of the
   Registered Address.  It is used in place of the EUI-64 address that
   is specified in RFC 6775.  Once an address is registered with a
   Cryptographic ID, only the owner of that ID can modify the state
   information of the Registered Address in the 6LR and 6LBR.

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 17, 2017.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Sethi, et al.           Expires February 17, 2017               [Page 1]
Internet-Draft        Address Protection ND for LLN          August 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Protocol Interactions . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   5
     4.2.  Updating RFC 6775 . . . . . . . . . . . . . . . . . . . .   7
       4.2.1.  Crypto-ID Calculation . . . . . . . . . . . . . . . .  10
     4.3.  Multihop Operation  . . . . . . . . . . . . . . . . . . .  13
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   6.  IANA considerations . . . . . . . . . . . . . . . . . . . . .  14
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     8.2.  Informative references  . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   Neighbor discovery for IPv6 [RFC4861] and stateless address
   autoconfiguration [RFC4862] are together referred to as neighbor
   discovery protocols (NDP).  They are defined for regular hosts that
   have sufficient memory and computation capabilities.  These protocols
   are however not suitable for resource-constrained devices.
   Therefore, they require adaptation to work on resource-constrained
   hosts operating over a low-power and lossy network (LLN).  Neighbor
   Discovery optimizations for 6LoWPAN networks include simple
   optimizations such as a host address registration feature.  This
   feature uses the address registration option (ARO) which is sent in
   the unicast Neighbor Solicitation (NS) and Neighbor Advertisement
   (NA) messages [RFC6775].

   With 6LoWPAN ND [RFC6775], the ARO option includes a EUI-64 interface
   ID to uniquely identify the interface of the Registered Address on
   the registering device, so as to correlate further registrations for
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