6lo Working Group M. Richardson
Internet-Draft Sandelman Software Works
Intended status: Informational October 19, 2016
Expires: April 22, 2017
GRASP discovery of Registrar by Join Assistant
draft-richardson-anima-6join-discovery-00
Abstract
This document describes an Autonomic System Agent (ASA) that permits
discovery of a registrar, as well as determination via GRASP if a
registrar would be willing to consider enrolling a specific node.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 2
2. Autonomic System Agent Description . . . . . . . . . . . . . 2
2.1. CDDL for objective . . . . . . . . . . . . . . . . . . . 3
3. Security Considerations . . . . . . . . . . . . . . . . . . . 3
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
5. References . . . . . . . . . . . . . . . . . . . . . . . . . 3
5.1. Normative References . . . . . . . . . . . . . . . . . . 3
5.2. Informative References . . . . . . . . . . . . . . . . . 4
Appendix A. appendix . . . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 4
1. Introduction
[I-D.richardson-6tisch-dtsecurity-secure-join] and
[I-D.ietf-anima-bootstrapping-keyinfra] describe autonomic protocols
wherein a New Entity or Pledge is joined to a network. While the two
protocols are different, in each case they make use of a helper,
called the Join Assistant which is a single layer-2 hop from the
pledge.
The Join Assistant relays packets to and from the Registrar using a
circuit proxy, or with an IPIP tunnel. In order to do this, the Join
Assistant needs to know the address of the Registrar.
GRASP has a discovery mechanism that permits the Join Assistant to
discover the location of the Registrar, and then, it can use the
negotiation part of the protocol to communicate the existance of the
new Pledge/New Entity to the Registrar.
1.1. Terminology
In this document, the key words "MUST", "MUST NOT", "REQUIRED",
"SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY",
and "OPTIONAL" are to be interpreted as described in BCP 14, RFC 2119
[RFC2119] and indicate requirement levels for compliant STuPiD
implementations.
2. Autonomic System Agent Description
This ASA has an objective named "6JOIN".
The objective takes two arguments: the EUI-64 or IID of the new
pledge, and an enumerated type to indicate the kind of join process
being pursued. The current list of join process mechanism are:
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1. "6p-ipip"
2. "https-est"
2.1. CDDL for objective
objective = ["6JOIN", objective-flags, loop-count,
[IID, join-method]]
loop-count = 0..255 ; as in the GRASP specification
objective-flags /= ; as in the GRASP specification
IID = bytes .size 8 ; the IID of the New Entity or Pledge
join-method /= "6p-ipip" ; the Join method is outgoing CoAP-6p
; with an IPIP encapsulation
join-method /= "https-est" ; the Join method is EST over HTTP
3. Security Considerations
TBD.
4. IANA Considerations
This allocates a new entry in the GRASP Objective Names Table with
the name "6JOIN".
5. References
5.1. Normative References
[I-D.ietf-anima-grasp]
Bormann, C., Carpenter, B., and B. Liu, "A Generic
Autonomic Signaling Protocol (GRASP)", draft-ietf-anima-
grasp-07 (work in progress), September 2016.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
[RFC7228] Bormann, C., Ersue, M., and A. Keranen, "Terminology for
Constrained-Node Networks", RFC 7228,
DOI 10.17487/RFC7228, May 2014,
<http://www.rfc-editor.org/info/rfc7228>.
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5.2. Informative References
[I-D.ietf-anima-bootstrapping-keyinfra]
Pritikin, M., Richardson, M., Behringer, M., and S.
Bjarnason, "Bootstrapping Remote Secure Key
Infrastructures (BRSKI)", draft-ietf-anima-bootstrapping-
keyinfra-03 (work in progress), June 2016.
[I-D.richardson-6tisch-dtsecurity-secure-join]
Richardson, M., "6tisch Secure Join protocol", draft-
richardson-6tisch-dtsecurity-secure-join-00 (work in
progress), September 2016.
Appendix A. appendix
insert appendix here
Author's Address
Michael Richardson
Sandelman Software Works
Email: mcr+ietf@sandelman.ca
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