RFC 2139 · INFORMATIONAL · 1997
SUN · 14 JUN 2026
RADIUS Accounting
Overview
RFC 2139, “RADIUS Accounting”, is an Informational document published in April 1997 by C. Rigney. It obsoletes RFC 2059. It has been obsoleted by RFC 2866 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This document describes a protocol for carrying accounting information between a Network Access Server and a shared Accounting Server. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 2139 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1997
- RFC 2138 Remote Authentication Dial In User Service
- RFC 2140 TCP Control Block Interdependence
- RFC 2137 Secure Domain Name System Dynamic Update
- RFC 2141 URN Syntax
- RFC 2136 Dynamic Updates in the Domain Name System
- RFC 2142 Mailbox Names for Common Services, Roles and Functions
- RFC 2135 Internet Society By-Laws
- RFC 2143 Encapsulating IP with the Small Computer System Interface