State of Affairs for Randomized and Changing Media Access Control Addresses
RFC 9724, “State of Affairs for Randomized and Changing Media Access Control Addresses”, is an Informational document published in March 2025 by JC. Zúñiga, CJ. Bernardos, A. Andersdotter. The canonical text is published by the RFC Editor.
Abstract
Internet users are becoming more aware that their activity over the Internet leaves a vast digital footprint, that communications might not always be properly secured, and that their location and actions can be tracked. One of the main factors that eases tracking of Internet users is the wide use of long-lasting, and sometimes persistent, identifiers at various protocol layers. This document focuses on Media Access Control (MAC) addresses.
There have been several initiatives within the IETF and the IEEE 802 standards committees to address some of the privacy issues involved. This document provides an overview of these activities to help coordinate standardization activities in these bodies.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 9724 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9722 Fast Recovery for EVPN Designated Forwarder Election
- RFC 9726 Operational Considerations for Use of DNS in Internet of Things Devices
- RFC 9721 Extended Mobility Procedures for Ethernet VPN Integrated Routing and Bridging
- RFC 9727 api-catalog: A Well-Known URI and Link Relation to Help Discovery of APIs
- RFC 9728 OAuth 2.0 Protected Resource Metadata
- RFC 9720 RFC Formats and Versions