IPv6 Neighbor Discovery on Wireless Networks
draft-thubert-6man-ipv6-over-wireless-03

Document Type Active Internet-Draft (individual)
Last updated 2019-05-02
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
6MAN                                                     P. Thubert, Ed.
Internet-Draft                                             Cisco Systems
Intended status: Informational                               May 2, 2019
Expires: November 3, 2019

              IPv6 Neighbor Discovery on Wireless Networks
                draft-thubert-6man-ipv6-over-wireless-03

Abstract

   This document describes how the original IPv6 Neighbor Discovery and
   Wireless ND (WiND) can be applied on various abstractions of wireless
   media.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 3, 2019.

Copyright Notice

   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   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.

Thubert                 Expires November 3, 2019                [Page 1]
Internet-Draft            Applying Wireless ND                  May 2019

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Acronyms  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  IP Models . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Physical Broadcast Domain . . . . . . . . . . . . . . . .   6
     3.2.  MAC-Layer Broadcast Emulations  . . . . . . . . . . . . .   7
     3.3.  Mapping the IPv6 Link Abstraction . . . . . . . . . . . .   8
     3.4.  Mapping the IPv6 Subnet Abstraction . . . . . . . . . . .   9
   4.  Wireless ND . . . . . . . . . . . . . . . . . . . . . . . . .  10
     4.1.  Introduction to WiND  . . . . . . . . . . . . . . . . . .  10
     4.2.  Links and Link-Local Addresses  . . . . . . . . . . . . .  11
     4.3.  Subnets and Global Addresses  . . . . . . . . . . . . . .  11
   5.  WiND Applicability  . . . . . . . . . . . . . . . . . . . . .  12
     5.1.  Case of LPWANs  . . . . . . . . . . . . . . . . . . . . .  13
     5.2.  Case of Infrastructure BSS and ESS  . . . . . . . . . . .  13
     5.3.  Case of Mesh Under Technologies . . . . . . . . . . . . .  14
     5.4.  Case of DMC radios  . . . . . . . . . . . . . . . . . . .  14
       5.4.1.  Using IPv6 ND only  . . . . . . . . . . . . . . . . .  15
       5.4.2.  Using Wireless ND . . . . . . . . . . . . . . . . . .  15
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  18
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  18
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  19
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

   IEEE STD. 802.1 [IEEEstd8021] Ethernet Bridging provides an efficient
   and reliable broadcast service for wired networks; applications and
   protocols have been built that heavily depend on that feature for
   their core operation.  Unfortunately, Low-Power Lossy Networks (LLNs)
   and local wireless networks generally do not provide the broadcast
   capabilities of Ethernet Bridging in an economical fashion.

   As a result, protocols designed for bridged networks that rely on
   multicast and broadcast often exhibit disappointing behaviours when
   employed unmodified on a local wireless medium (see
   [I-D.ietf-mboned-ieee802-mcast-problems]).

   Wi-Fi [IEEEstd80211] Access Points (APs) deployed in an Extended
   Service Set (ESS) act as Ethernet Bridges [IEEEstd8021], with the
   property that the bridging state is established at the time of
   association.  This ensures connectivity to the node (STA) and
   protects the wireless medium against broadcast-intensive Transparent
   Bridging reactive Lookups.
Show full document text