RFC 8981

Temporary Address Extensions for Stateless Address Autoconfiguration in IPv6, February 2021

File formats:

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Status:
PROPOSED STANDARD
Obsoletes:
RFC 4941
Authors:
F. Gont
S. Krishnan
T. Narten
R. Draves
Stream:
IETF
Source:
6man (int)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8981

Discuss this RFC: Send questions or comments to ipv6@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document describes an extension to IPv6 Stateless Address Autoconfiguration that causes hosts to generate temporary addresses with randomized interface identifiers for each prefix advertised with autoconfiguration enabled. Changing addresses over time limits the window of time during which eavesdroppers and other information collectors may trivially perform address-based network-activity correlation when the same address is employed for multiple transactions by the same host. Additionally, it reduces the window of exposure of a host as being accessible via an address that becomes revealed as a result of active communication. This document obsoletes RFC 4941.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.