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Source Address Validation Improvement (SAVI) for Mixed Address Assignment Methods Scenario (RFC8074)

IP.com Disclosure Number: IPCOM000249346D
Original Publication Date: 2017-Feb-01
Included in the Prior Art Database: 2017-Feb-19
Document File: 24 page(s) / 24K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Bi: AUTHOR [+5]

Abstract

There are currently several Source Address Validation Improvement (SAVI) documents ([RFC6620], [RFC7513], and [RFC7219]) that describe the different methods by which a switch can discover and record bindings between a node's IP address and a binding anchor and use that binding to perform source address validation. Each of these documents specifies how to learn on-link addresses, based on the technique used for their assignment: StateLess Address Autoconfiguration (SLAAC), the Dynamic Host Control Protocol (DHCP), and Secure Neighbor Discovery (SEND), respectively. Each of these documents describes separately how one particular SAVI method deals with address collisions (same address but different binding anchor).

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Internet Engineering Task Force (IETF)                             J. Bi Request for Comments: 8074                           Tsinghua University Category: Standards Track                                         G. Yao ISSN: 2070-1721                                Tsinghua University/Baidu                                                               J. Halpern                                                                 Ericsson                                                    E. Levy-Abegnoli, Ed.                                                                    Cisco                                                            February 2017

               Source Address Validation Improvement (SAVI)              for Mixed Address Assignment Methods Scenario

Abstract

   In networks that use multiple techniques for address assignment, the    spoofing of addresses assigned by each technique can be prevented    using the appropriate Source Address Validation Improvement (SAVI)    methods.  This document reviews how multiple SAVI methods can coexist    in a single SAVI device and how collisions are resolved when the same    binding entry is discovered by two or more methods.

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 7841.

   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/rfc8074.

Bi, et al.                   Standards Track                    [Page 1]
 RFC 8074                        SAVI-MIX                   February 2017

 Copyright Notice

   Copyright (c) 2017 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 C...