Internet Engineering Task Force (IETF) J. Wu
Request for Comments: 7039 J. Bi
Category: Informational Tsinghua Univ.
ISSN: 2070-1721 M. Bagnulo
UC3M
F. Baker
Cisco
C. Vogt, Ed.
October 2013
Source Address Validation Improvement (SAVI) Framework
Abstract
Source Address Validation Improvement (SAVI) methods were developed
to prevent nodes attached to the same IP link from spoofing each
other's IP addresses, so as to complement ingress filtering with
finer-grained, standardized IP source address validation. This
document is a framework document that describes and motivates the
design of the SAVI methods. Particular SAVI methods are described in
other documents.
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/rfc7039.
Wu, et al. Informational [Page 1]RFC 7039 SAVI Framework October 2013Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Deployment Options . . . . . . . . . . . . . . . . . . . . . 5
3.1. IP Address Assignment Methods . . . . . . . . . . . . . . 6
3.2. Binding Anchors . . . . . . . . . . . . . . . . . . . . . 6
4. Scalability Optimizations . . . . . . . . . . . . . . . . . . 7
5. Reliability Optimizations . . . . . . . . . . . . . . . . . . 9
6. Scenario with Multiple Assignment Methods . . . . . . . . . . 10
7. Prefix Configuration . . . . . . . . . . . . . . . . . . . . 10
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11
9. Security Considerations . . . . . . . . . . . . . . . . . . . 11
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 12
10.1. Normative References . . . . . . . . . . . . . . . . . . 12
10.2. Informative References . . . . . . . . . . . . . . . . . 12
Wu, et al. Informational [Page 2]RFC 7039 SAVI Framework October 20131. Introduction
Since IP source addresses are used by hosts and network entities to
determine the origin of a packet and as a destination for return
datatracker.ietf.org