Source Address Validation Improvement (SAVI) Framework (RFC7039)
Original Publication Date: 2013-Oct-01
Included in the Prior Art Database: 2013-Nov-02
Internet Society Requests For Comment (RFCs)
J. Wu: AUTHOR [+6]
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 spoofing [RFC6959]. Since the IP source address of a packet generally takes no role in forwarding the packet, it can be selected arbitrarily by the sending host without jeopardizing packet delivery. Extra methods are necessary for IP source address validation to augment packet forwarding with an explicit check of whether a given packet's IP source address is legitimate.
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
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
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