IETF 79 Proceedings

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Ad-Hoc Network Autoconfiguration (autoconf) (WG)

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Additional information is available at tools.ietf.org/wg/autoconf

Chair(s): Ryuji Wakikawa Thomas Clausen Internet Area Director(s): Ralph Droms Jari Arkko Internet Area Advisor: Jari Arkko

Meeting Slides

• WG Chairs' Slide

No Current Internet-Drafts

Request for Comments:

• IP Addressing Model in Ad Hoc Networks (RFC 5889) (14918 bytes)

Charter (as of 2010-12-21)

RFC 5889 presents one possible IPv6 addressing model for ad hoc
nodes. In this model the ad hoc routers need to configure their
network interface(s) with addresses valid in the ad hoc network, and
may configure additional prefixes for use by attached nodes.

After completing the work on RFC 5889, the main purpose of the
AUTOCONF WG is to standardize how existing IPv6 address configuration
tools can be used for address configuration.

1. DHCPv6 operation over MANET, including:

- A DHCPv6-based mechanism for configuring required interface
addresses for the routers in the ad hoc network. This mechanism
is expected to produce addresses with properties outlined in RFC
5889. This mechanism uses the existing DHCPv6 protocol unchanged,
and assumes a central node that can allocate addresses on a
first-come-first-served basis. Nodes in the ad hoc network
will relay messages to the central node in order to help a new
node get an address for itself. This mechanism is only suitable
for deployments were a central node can be set up. It should be
noted that many existing deployments employ Internet gateways
that can act as such a central node as well. Future extensions
such as central node election may make this mechanism suitable
for also for stand-alone ad hoc networks.

- A DHCPv6-based mechanism for delegating a prefix(es) to each
router for use by applications running on the routers themselves,
or for configuration of attached hosts/networks. This mechanism
works in a similar manner to the one above, but allocates
prefixes instead of addresses.

Both mechanisms should be independent from operation of any specific
MANET routing protocol, although may exploit information maintained by
such a routing protocol, if available.

The working group will adapt and/or reuse existing protocols whenever
reasonable and possible. No new duplicate address detection mechanisms
will be specified.

2. Analysis of Problem Space for distributed address configuration and
service discovery. This analysis is necessary in order to understand
what type of distributed solution(s) can be standardized. There is
already quite a lot of material about possible solutions in the
literature.

The working group plans to establish design teams for rapidly advancing
towards initial submissions for these two work items. The group shall
also work with the 6LOWPAN and ROLL working group to ensure that
the results from AUTOCONF working group are useful for the larger
community and do not overlap with work already in progress in these
other working groups.

Goals and Milestones:

Done		Submit an initial 'MANET architecture' WG document
Done		Submit an initial 'terminology and problem statement' WG document
Done		Submit 'MANET architecture' document to IESG for publication as an informational RFC
Jan 2011		First working group draft of the 'Analysis of Problem Space'
Jan 2011		First working group draft of the 'DHCPv6 operation over MANET'
Sep 2011		Submission of the 'DHCPv6 operation over MANET' to the IESG for publication as BCP
Sep 2011		Submission of the 'Analysis of Problem Space' the IESG for publication as Informational RFC
Oct 2011		First working group draft of the 'Distributed Solution'
Jun 2012		Submission of the 'Distributed Solution' to the IESG for publication as an Proposed Standard RFC
Jun 2012		Rechartering or Closing WG