IP Addressing Model in Ad Hoc Networks
RFC 5889
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RFC - Informational
(September 2010; No errata)
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2015-10-14
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IETF
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RFC 5889 (Informational)
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Unknown
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Jari Arkko
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Internet Engineering Task Force (IETF) E. Baccelli, Ed.
Request for Comments: 5889 INRIA
Category: Informational M. Townsley, Ed.
ISSN: 2070-1721 Cisco Systems
September 2010
IP Addressing Model in Ad Hoc Networks
Abstract
This document describes a model for configuring IP addresses and
subnet prefixes on the interfaces of routers which connect to links
with undetermined connectivity properties.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5889.
Copyright Notice
Copyright (c) 2010 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
(http://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.
Baccelli & Townsley Informational [Page 1]
RFC 5889 Ad Hoc IP Addressing September 2010
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Applicability Statement . . . . . . . . . . . . . . . . . . . . 4
4. IP Subnet Prefix Configuration . . . . . . . . . . . . . . . . 4
5. IP Address Configuration . . . . . . . . . . . . . . . . . . . 4
6. Addressing Model . . . . . . . . . . . . . . . . . . . . . . . 5
6.1. IPv6 Model . . . . . . . . . . . . . . . . . . . . . . . . 5
6.2. IPv4 Model . . . . . . . . . . . . . . . . . . . . . . . . 6
7. Security Considerations . . . . . . . . . . . . . . . . . . . . 6
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 7
8.1. Normative References . . . . . . . . . . . . . . . . . . . 7
8.2. Informative References . . . . . . . . . . . . . . . . . . 7
Appendix A. Contributors . . . . . . . . . . . . . . . . . . . . . 7
1. Introduction
The appropriate configuration of IP addresses and subnet masks for
router network interfaces is generally a prerequisite to the correct
functioning of routing protocols. Consideration of various items,
including underlying link capabilities and connectivity, geographical
topology, available address blocks, assumed traffic patterns etc.,
are used when determining the appropriate network topology and the
associated IP interface configuration.
When the capabilities and connectivity of the links that connect
routers are well-known and stable, logical network topology design
and corresponding IP interface configuration are straightforward.
Absent any assumption about link-level connectivity, however, there
is no canonical method for determining a given IP interface
configuration.
Link-level connectivity is generally qualified as undetermined when
it is unplanned and/or time-varying in character. Ad hoc networks
are typical examples of networks with undetermined link-level
connectivity. Routing protocols for ad hoc networks are purposely
designed to detect and maintain paths across the network, even when
faced with links with undetermined connectivity, assuming that
routers' interfaces are configured with IP addresses. This document
thus proposes a model for configuration of IP addresses and subnet
prefixes on router interfaces to links with undetermined connectivity
properties, to allow routing protocols and data packet forwarding to
function.
Note that routers may ultimately need additional IP prefixes for the
diverse applications that could run directly on the routers
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