OSPFv3 Autoconfiguration
RFC 7503
| Document | Type |
RFC - Proposed Standard
(April 2015; No errata)
Updates RFC 5340
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-acee-ospf-ospfv3-autoconfig | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Ing-Wher Chen | ||
| Shepherd write-up | Show (last changed 2014-11-03) | ||
| IESG | IESG state | RFC 7503 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alia Atlas | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) A. Lindem
Request for Comments: 7503 Cisco Systems
Updates: 5340 J. Arkko
Category: Standards Track Ericsson
ISSN: 2070-1721 April 2015
OSPFv3 Autoconfiguration
Abstract
OSPFv3 is a candidate for deployments in environments where
autoconfiguration is a requirement. One such environment is the IPv6
home network where users expect to simply plug in a router and have
it automatically use OSPFv3 for intra-domain routing. This document
describes the necessary mechanisms for OSPFv3 to be self-configuring.
This document updates RFC 5340 by relaxing the HelloInterval/
RouterDeadInterval checking during OSPFv3 adjacency formation and
adding hysteresis to the update of self-originated Link State
Advertisements (LSAs).
Status of This Memo
This is an Internet Standards Track document.
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). Further information on
Internet Standards is available in 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/rfc7503.
Lindem & Arkko Standards Track [Page 1]
RFC 7503 OSPFv3 Autoconfiguration April 2015
Copyright Notice
Copyright (c) 2015 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.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Notation . . . . . . . . . . . . . . . . . . 3
2. OSPFv3 Default Configuration . . . . . . . . . . . . . . . . 4
3. OSPFv3 HelloInterval/RouterDeadInterval Flexibility . . . . . 5
3.1. Wait Timer Reduction . . . . . . . . . . . . . . . . . . 5
4. OSPFv3 Minimal Authentication Configuration . . . . . . . . . 5
5. OSPFv3 Router ID Selection . . . . . . . . . . . . . . . . . 5
6. OSPFv3 Adjacency Formation . . . . . . . . . . . . . . . . . 6
7. OSPFv3 Duplicate Router ID Detection and Resolution . . . . . 6
7.1. Duplicate Router ID Detection for Neighbors . . . . . . . 6
7.2. Duplicate Router ID Detection for Non-neighbors . . . . . 7
7.2.1. OSPFv3 Router Autoconfiguration LSA . . . . . . . . . 7
7.2.2. Router-Hardware-Fingerprint TLV . . . . . . . . . . . 9
7.3. Duplicate Router ID Resolution . . . . . . . . . . . . . 9
7.4. Change to RFC 2328, Section 13.4 ("Receiving
Self-Originated LSAs") . . . . . . . . . . . . . . . . . 10
8. Security Considerations . . . . . . . . . . . . . . . . . . . 10
9. Management Considerations . . . . . . . . . . . . . . . . . . 11
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
11.1. Normative References . . . . . . . . . . . . . . . . . . 12
11.2. Informative References . . . . . . . . . . . . . . . . . 13
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 15
Lindem & Arkko Standards Track [Page 2]
RFC 7503 OSPFv3 Autoconfiguration April 2015
1. Introduction
OSPFv3 [OSPFV3] is a candidate for deployments in environments where
autoconfiguration is a requirement. This document describes
extensions to OSPFv3 to enable it to operate in these environments.
In this mode of operation, the protocol is largely unchanged from the
base OSPFv3 protocol specification [OSPFV3]. Since the goals of
autoconfiguration and security can be conflicting, operators and
network administrators should carefully consider their security
requirements before deploying the solution described in this
document. Refer to Section 8 for more information.
The following aspects of OSPFv3 autoconfiguration are described in
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