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RADIUS - Remote Authentication Dial In User Service 

RADIUS is a protocol for carrying information related to authentication, authorization, and configuration between a Network Access Server (NAS) which desires to authenticate its links and a shared Authentication Server.

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Table of Contents

What is AAA and NAS ?
This section talks about AAA and NAS which are pre-requisite to understand RADIUS.

RADIUS Overview
This section explains what is RADIUS.

Key Features of RADIUS
This section will list out all the key features of RADIUS Protocol.

RADIUS Operations
This section will discuss about all the operations associated with RADIUS protocol.

RADIUS Packet Format
This section will give a detial of RADIUS Request & Response Packet Format.

RADIUS Attributes Format
This section will give a detial of RADIUS Attributes Format.

RADIUS Request and Response Examples
This section will give an example of RADIUS Request and Response

This section will give an introduction of DIAMETER protocol.

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