RFC 2058 (rfc2058) - Page 1 of 64
Remote Authentication Dial In User Service (RADIUS)
Alternative Format: Original Text Document
Network Working Group C. Rigney
Request for Comments: 2058 Livingston
Category: Standards Track A. Rubens
Merit
W. Simpson
Daydreamer
S. Willens
Livingston
January 1997
Remote Authentication Dial In User Service (RADIUS)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Abstract
This document describes a protocol for carrying authentication,
authorization, and configuration information between a Network Access
Server which desires to authenticate its links and a shared
Authentication Server.
Table of Contents
1. Introduction .......................................... 3
1.1 Specification of Requirements ................... 4
1.2 Terminology ..................................... 4
2. Operation ............................................. 5
2.1 Challenge/Response .............................. 6
2.2 Interoperation with PAP and CHAP ................ 7
2.3 Why UDP? ........................................ 8
3. Packet Format ......................................... 9
4. Packet Types .......................................... 12
4.1 Access-Request .................................. 12
4.2 Access-Accept ................................... 14
4.3 Access-Reject ................................... 15
4.4 Access-Challenge ................................ 16
5. Attributes ............................................ 17
5.1 User-Name ....................................... 20
5.2 User-Password ................................... 21
5.3 CHAP-Password ................................... 22
5.4 NAS-IP-Address .................................. 23
Rigney, et. al. Informational