Cisco Trainings on : Cisco Hands On : Useful Pages: PACKET TRACER FILES : CHEAT SHEETS : QUIZES SECTION : NETWORK TOOLS : INTERVIEW QUESTIONS : RADIUS Configuration on Cisco Packet Tracer, How to Configure RADIUS on Cisco Routers #RADIUS #TACACS #PacketTracer #CCNA #CCNP #CCENT #CCIE #RadiusServer #ccnasecurity #cybersecurity #networksecurity RADIUS Configuration on Packet Tracer In this RADIUS Configuration Example, we will configure RADIUS Server and a Cisco Router for RADIUS Authentication, for the users connected to the router via Cisco switch. For out RADIUS Configuration Example, we will use the below topology on Cisco Packet Tracer. How can we configure RADIUS? In this RADIUS Configuration Example, we will follow some steps on RADIUS Server, Cisco Router and the PCs. These RADIUS Configuration steps are given below: We will do the IP Configurations on both interfaces of the Router and PCs. We will configure RADIUS Server IP Configuration. RADIUS Settings on RADIUS Server will be configured. Username and Password definitions will be set on RADIUS Server. We will focus on the AAA Configurations on the router. Laslty, we will verify our RADIUS Configuration. RADIUS Configuration on Cisco Router In this step, firstly, we will configure the router with “aaa new-model” command. With this command, we will say the router that, we will use RADIUS or TACACS. After that, we will set the RADIUS Server IP address. We will do this with “ radius-server host key abc123” command. The IP address is the IP address of our server and the key is the secret key that we have configured on RADIUS Server. Then, we will set RADIUS as the default login mode of the router with “aaa authentication login default group radius local” command. We will configure telnet logins with the default authentication. And save the configuration. Router1 (config)# aaa new-model Router1 (config)# radius-server host key abc123 Router1 (config)# aaa authentication login default group radius local