Security and Privacy Considerations for IPv6 Address Generation Mechanisms (RFC7721)
Original Publication Date: 2016-Mar-01
Included in the Prior Art Database: 2016-Mar-10
Internet Society Requests For Comment (RFCs)
A. Cooper: AUTHOR [+3]
IPv6 was designed to improve upon IPv4 in many respects, and mechanisms for address assignment were one such area for improvement. In addition to static address assignment and DHCP, stateless autoconfiguration was developed as a less intensive, fate-shared means of performing address assignment. With stateless autoconfiguration, routers advertise on-link prefixes and hosts generate their own Interface Identifiers (IIDs) to complete their addresses. [RFC7136] clarifies that the IID should be treated as an opaque value, while [RFC7421] provides an analysis of the 64-bit boundary in IPv6 addressing (e.g., the implications of the IID length on security and privacy). Over the years, many IID generation techniques have been defined, both standardized and non-standardized:
Internet Engineering Task Force (IETF) A. Cooper Request for Comments: 7721 Cisco Category: Informational F. Gont ISSN: 2070-1721 Huawei Technologies D. Thaler Microsoft March 2016
Security and Privacy Considerations for IPv6 Address Generation Mechanisms
This document discusses privacy and security considerations for several IPv6 address generation mechanisms, both standardized and non-standardized. It evaluates how different mechanisms mitigate different threats and the trade-offs that implementors, developers, and users face in choosing different addresses or address generation mechanisms.
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/rfc7721.
al. Informational [Page 1]
RFC 7721 IPv6 Address Generation Privacy March 2016
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