6lo Working Group
Internet Engineering Task Force (IETF)                          R. Droms
Internet-Draft
Request for Comments: 7973
Category: Informational                                         P. Duffy
Intended status: Informational
ISSN: 2070-1721                                                    Cisco
Expires: December 8, 2016                                   June 6,
                                                           November 2016

                Assignment of an Ethertype for IPv6 with LoWPAN
    Low-Power Wireless Personal Area Network (LoWPAN) Encapsulation
                  draft-ietf-6lo-ethertype-request-01

Abstract

   When carried over layer Layer 2 technologies such as Ethernet, IPv6
   datagrams using LoWPAN Low-Power Wireless Personal Area Network (LoWPAN)
   encapsulation as defined in RFC 4944 must be identified so the
   receiver can correctly interpret the encoded IPv6 datagram.  This document requests  The IETF
   officially requested the assignment of an Ethertype for that purpose. purpose
   and this document reports that assignment.

Status of This Memo

   This Internet-Draft document is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents not an Internet Standards Track specification; it is
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   This Internet-Draft will expire on December 8, 2016.
   http://www.rfc-editor.org/info/rfc7973.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Assignment of an Ethertype by IEEE  . . . . . . . . . . . . .   3
   3.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   5.  Normative References  . . . . . . . . . . . . . . . . . . . .   3
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   4

1.  Introduction

   The IETF has defined "LoWPAN encapsulation", a format for IPv6 [RFC2460]
   datagram encapsulation [RFC4944] ("LoWPAN encapsulation"). [RFC4944].  This document regards any IPv6
   datagram using the Dispatch octet as defined in
   section Section 5.1 of RFC
   4944 to be as using LoWPAN encapsulation.  LoWPAN encapsulation as defined
   in RFC 4944 has been updated by [RFC6282], and may be extended and
   modified by future IETF standards document. Standards.  The intended layer Layer 2 technology
   for IPv6 datagrams using LoWPAN encapsulation as originally defined
   is [IEEE.802.15.4_2011], which does not provide for a protocol switch
   in its layer Layer 2 headers.

   There is interest in supporting Ethertype

   The following list gives some example use cases for the Ethertype-
   based protocol dispatch for
   LoWPAN encapsulated the LoWPAN-encapsulated IPv6 datagrams: datagram:

   o  Usage of LoWPAN encapsulation in conjunction with IEEE 802.15.9
      Multiplexed Data Service [IEEE802159], which provides the ability
      to perform upper layer protocol dispatch for IEEE 802.15.4
      networks.  Wi-SUN Alliance intends to use the 15.9 Multiplexed
      Data Information Element to dispatch LoWPAN encapsulation frames
      to for upper stack layers. layer protocol dispatch.  As
      specified in IEEE 802.15.9, dispatch of LoWPAN encapsulation
      frames will require that an Ethertype be assigned for LoWPAN
      encapsulation.

   o  LoWPAN encapsulation will likely be needed for WiFi Wi-Fi Alliance's
      HaLoW [HALOW] standard (low power (low-power operation in the 900 MHz band) band).

   o  Other layer Layer 2 technologies such as Ethernet and debugging tools
      such as Wireshark require a unique protocol type Protocol Type field for LoWPAN
      encapsulation to properly interpret IPv6 datagrams that use LoWPAN
      encapsulation.

   o  Any existing or future Layer 2 technology, incorporating Ethertype
      based
      Ethertype-based upper layer dispatch, can use the Ethertype
      proposed in this document to dispatch LoWPAN encapsulated LoWPAN-encapsulated IPv6
      datagrams.

2.  Request to IEEE for assignment  Assignment of an Ethertype

   When this document is published, the by IEEE

   The IETF will formally submit submitted a request to IEEE for assignment of an
   Ethertype for IPv6 datagrams using LoWPAN encapsulation.  IEEE has
   responded with the assignment of Ethertype 0xA0ED for this purpose.
   The assignment has been recorded by IEEE [IEEE-ETHERTYPES].

3.  IANA Considerations

   This memo includes no request

   The following entry has been added to IANA. the "ETHER TYPES" subregistry
   of the "IEEE 802 Numbers" registry [IANA-IEEE802]:

      Ethertype (decimal): 41197
      Ethertype (hex): A0ED
      Exp. Ethernet (decimal): -
      Exp. Ethernet (octal): -
      Description: LoWPAN encapsulation
      References: RFC 7973 (this document)

4.  Security Considerations

   This document is intended only to request requests assignment of an Ethertype for IPv6
   datagrams using LoWPAN encapsulation.  It has no incremental
   implications for security beyond those in the relevant protocols.

5.  Normative References

   [HALOW]    Wi-Fi Alliance, "Wi-Fi HaLow",
              http://www.wi-fi.org/discover-wi-fi/wi-fi-halow .
              <http://www.wi-fi.org/discover-wi-fi/wi-fi-halow>.

   [IANA-IEEE802]
              IANA, "IEEE 802 Numbers",  ,
              <http://www.iana.org/assignments/ieee-802-numbers>.

   [IEEE-ETHERTYPES]
              IEEE, "Ethertype",  ,
              <http://standards-oui.ieee.org/ethertype/eth.txt>.

   [IEEE.802.15.4_2011]
              IEEE, "IEEE Standard for Local and metropolitan area
              networks--Part 15.4: Low-Rate Wireless Personal Area
              Networks (LR-WPANs)", IEEE 802.15.4-2011,
              DOI 10.1109/ieeestd.2011.6012487, September 2011,
              <http://ieeexplore.ieee.org/servlet/
              opac?punumber=6012485>.

   [IEEE802159]
              IEEE, "IEEE Draft Recommended Practice for Transort Transport of
              Key Management Protocol (KMP) Datagrams",
              IEEE P802.15.9/D04, May 2015. 2015,
              <http://ieeexplore.ieee.org/xpl/
              articleDetails.jsp?arnumber=7272753>.

   [RFC2460]  Deering, S. and R. Hinden, "Internet Protocol, Version 6
              (IPv6) Specification", RFC 2460, DOI 10.17487/RFC2460,
              December 1998, <http://www.rfc-editor.org/info/rfc2460>.

   [RFC4944]  Montenegro, G., Kushalnagar, N., Hui, J., and D. Culler,
              "Transmission of IPv6 Packets over IEEE 802.15.4
              Networks", RFC 4944, DOI 10.17487/RFC4944, September 2007,
              <http://www.rfc-editor.org/info/rfc4944>.

   [RFC6282]  Hui, J., Ed. and P. Thubert, "Compression Format for IPv6
              Datagrams over IEEE 802.15.4-Based Networks", RFC 6282,
              DOI 10.17487/RFC6282, September 2011,
              <http://www.rfc-editor.org/info/rfc6282>.

Authors' Addresses

   Ralph Droms
   Cisco
   55 Cambridge Parkway
   Cambridge, Massachusetts
   US

   Phone: +1 617 621 1904

   Email: rdroms.ietf@gmail.com

   Paul Duffy
   Cisco
   1414 Massachusetts Ave.
   Boxborough, Massachusetts  01719
   US
   United States of America

   Phone: +1 978 204 9993
   Email: paduffy@cisco.com