Network Working Group C. Rigney Request for Comments: 2139 Livingston Obsoletes: 2059 April 1997 Category: Informational RADIUS Accounting Status of this Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document describes a protocol for carrying accounting information between a Network Access Server and a shared Accounting Server. Implementation Note This memo documents the RADIUS Accounting protocol. There has been some confusion in the assignment of port numbers for this protocol. The early deployment of RADIUS Accounting was done using the erroneously chosen port number 1646, which conflicts with the "sa- msg-port" service. The officially assigned port number for RADIUS Accounting is 1813. Table of Contents 1. Introduction .......................................... 2 1.1 Specification of Requirements ................... 3 1.2 Terminology ..................................... 3 2. Operation ............................................. 4 3. Packet Format ......................................... 5 4. Packet Types .......................................... 7 4.1 Accounting-Request .............................. 7 4.2 Accounting-Response ............................. 8 5. Attributes ............................................ 10 5.1 Acct-Status-Type ................................ 11 5.2 Acct-Delay-Time ................................. 12 5.3 Acct-Input-Octets ............................... 13 5.4 Acct-Output-Octets .............................. 14 5.5 Acct-Session-Id ................................. 14 5.6 Acct-Authentic .................................. 15 5.7 Acct-Session-Time ............................... 16 5.8 Acct-Input-Packets .............................. 16 Rigney Informational