Extensions to the YANG Data Model for Access Control Lists
RFC 9899, “Extensions to the YANG Data Model for Access Control Lists”, is a Proposed Standard document published in December 2025 by O. Gonzalez de Dios, S. Barguil, M. Boucadair, Q. Wu. The canonical text is published by the RFC Editor.
Abstract
RFC 8519 defines a YANG data model for Access Control Lists (ACLs). This document specifies a set of extensions that fix many of the limitations of the ACL model as initially defined in RFC 8519. Specifically, it introduces augmentations to the ACL base model to enhance its functionality and applicability.
This document also creates initial versions of IANA-maintained modules for ICMP types and IPv6 extension headers.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 9899 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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- RFC 9901 Selective Disclosure for JSON Web Tokens
- RFC 9902 A YANG Data Model for IS-IS Segment Routing over the MPLS Data Plane
- RFC 9903 A YANG Data Model for OSPF Segment Routing over the MPLS Data Plane
- RFC 9904 DNSSEC Cryptographic Algorithm Recommendation Update Process
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- RFC 9906 Deprecate Usage of ECC-GOST within DNSSEC