FCFS SAVI: First-Come, First-Served Source Address Validation Improvement for Locally Assigned IPv6 Addresses
RFC 6620
Document | Type |
RFC - Proposed Standard
(May 2012; Errata)
Was draft-ietf-savi-fcfs (savi WG)
|
|
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Authors | Erik Nordmark , Marcelo Bagnulo , Eric Levy-Abegnoli | ||
Last updated | 2020-01-21 | ||
Replaces | draft-bagnulo-savi-fcfs | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6620 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Jari Arkko | ||
IESG note | Jean-Michel Combes (jeanmichel.combes@gmail.com) is the Document Shepherd | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) E. Nordmark Request for Comments: 6620 Cisco Systems Category: Standards Track M. Bagnulo ISSN: 2070-1721 UC3M E. Levy-Abegnoli Cisco Systems May 2012 FCFS SAVI: First-Come, First-Served Source Address Validation Improvement for Locally Assigned IPv6 Addresses Abstract This memo describes First-Come, First-Served Source Address Validation Improvement (FCFS SAVI), a mechanism that provides source address validation for IPv6 networks using the FCFS principle. The proposed mechanism is intended to complement ingress filtering techniques to help detect and prevent source address spoofing. 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/rfc6620. Nordmark, et al. Standards Track [Page 1] RFC 6620 FCFS SAVI May 2012 Copyright Notice Copyright (c) 2012 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. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Nordmark, et al. Standards Track [Page 2] RFC 6620 FCFS SAVI May 2012 Table of Contents 1. Introduction ....................................................4 1.1. Terminology ................................................4 2. Background to FCFS SAVI .........................................4 2.1. Scope of FCFS SAVI .........................................4 2.2. Constraints for FCFS SAVI Design ...........................5 2.3. Address Ownership Proof ....................................5 2.4. Binding Anchor Considerations ..............................6 2.5. FCFS SAVI Protection Perimeter .............................6 2.6. Special Cases .............................................10 3. FCFS SAVI Specification ........................................11 3.1. FCFS SAVI Data Structures .................................12 3.2. FCFS SAVI Algorithm .......................................12 3.2.1. Discovering On-Link Prefixes .......................12 3.2.2. Processing of Transit Traffic ......................13 3.2.3. Processing of Local Traffic ........................13 3.2.4. FCFS SAVI Port Configuration Guidelines ............21 3.2.5. VLAN Support .......................................22 3.3. Default Protocol Values ...................................22 4. Security Considerations ........................................22 4.1. Denial-of-Service Attacks .................................22 4.2. Residual Threats ..........................................23 4.3. Privacy Considerations ....................................24 4.4. Interaction with Secure Neighbor Discovery ................25Show full document text