Source Address Validation Improvement (SAVI) Framework
RFC 7039
Document | Type | RFC - Informational (October 2013; No errata) | |
---|---|---|---|
Authors | Jianping Wu , Jun Bi , Marcelo Bagnulo , Fred Baker , Christian Vogt | ||
Last updated | 2015-10-14 | ||
Replaces | draft-vogt-savi-framework | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 7039 (Informational) | |
Action Holders |
(None)
|
||
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) 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 2013 Copyright Notice Copyright (c) 2013 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. 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 2013 1. 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 data, spoofing of IP source addresses can enable impersonation, concealment, and malicious traffic redirection. Unfortunately, the Internet architecture does not prevent IP source address spoofingShow full document text