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RADIUS Protocol used for providing AAA functionality
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Short overview of AAA and the RADIUS protocol. The term AAA (say triple A) subsumes the functions used in network access to allow a user or a computer to access a network and use its resources. AAA stands for Authentication (is the user authentic?), Authorization (what is the user allowed to do?) and Accounting (track resource usage by the user). AAA is typically employed at network ingress points to control user's access to the network and resources. The most prominent protocol for AAA is RADIUS (Remote Authentication Dial In User Service) which defines messages for opening and closing a network session and counting network usage (packet and byte count). RADIUS usually works in conjunction with an LDAP server that stores the policies and user authorizations in a central repository.
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RADIUS is a protocol for carrying information related to authentication, authorization, and configuration between a Network Access Server that desires to authenticate its links and a shared Authentication Server. RADIUS stands for Remote Authentication Dial In User Service. RADIUS is an AAA protocol for applications such as Network Access or IP Mobility It works in both situations, Local and Mobile. It uses Password Authentication Protocol (PAP), Challenge Handshake Authentication Protocol (CHAP), or Extensible Authentication Protocol (EAP) protocols to authenticate users. It look in text file, LDAP Servers, Database for authentication.
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RADIUS
1.
RADIUS (REMOTE AUTHENTICATION
DIAL-IN USER SERVICE) PRESENTED BY: AMOGH UBALE CMPE-208 NETWORK ARCHITECTURE AND PROTOCOLS
2.
3.
4.
5.
6.
7.
8.
GENERAL FLOWGRAPH FOR
RADIUS
9.
10.
11.
12.
13.
14.
15.
16.
Wireshark trace of
access request
17.
Wireshark trace for
access reply
18.
Wireshark trace of
accounting request
19.
Wireshark trace for
accounting reply
20.
Wireshark trace for
accounting stop request
21.
22.
23.
24.