RADIUS + SSH Lab: Cisco AAA Authentication Step by Step
🎓 IT CAREER PASS — Get Cisco CCNA Certified
The express lane to your CCNA certification. Animated courses, hands-on labs, exam simulator.
→ https://www.formip.com/bundles/it-car...
━━━━━━━━━━━━━━━━━━━━━
One stolen password. Every router and switch on your network — wide open.
RADIUS authentication fixes that. In this hands-on lab, we configure it
from scratch on a Cisco router, live CLI, no shortcuts.
📌 In this video:
This step-by-step Cisco lab walks you through configuring RADIUS authentication
for SSH access using AAA (Authentication, Authorization, Accounting) on a Cisco
router in Packet Tracer. You'll see how to enable the AAA new-model, link your
router to a RADIUS server with the correct authorization key, and apply login
authentication across all VTY lines — giving you centralized, enterprise-grade
network security that scales to every device on your topology. We also cover
how TACACS+ compares to RADIUS and when to use each protocol, a key distinction
for the CCNA 200-301 exam and real-world network administration.
⏱️ Chapters:
0:00 — One Password, Full Access: The Problem
0:42 — Lab Overview: SSH + RADIUS on Cisco
0:49 — What Is RADIUS? AAA Explained
1:20 — RADIUS Server Configuration
2:15 — Connecting to Router 1
2:24 — AAA New-Model Command
3:01 — Linking Router to RADIUS Server
3:29 — Applying Auth to VTY Lines
3:41 — Testing SSH Login via RADIUS
4:05 — Scaling to New Devices
4:15 — RADIUS vs TACACS+: Key Difference
━━━━━━━━━━━━━━━━━━━━━
#CCNA #NetworkSecurity #CiscoLab #RADIUS #PacketTracer