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Cybersecurity · hands-on lab

CCNA 16 — Port security & device hardening

Lock a switch access port to a learned MAC, set the violation action, and apply basic device-hardening good practice.
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  • 50 minutesTime in the lab
  • IntermediateLevel
  • 5 tasksChecked automatically
  • CertificateVerifiable link when you finish

The situation

Stop anyone unplugging a PC and attaching a rogue device. Harden SW1 and its access ports.

Build this in Packet Tracer

  • Drag 1 switch (2960) → SW1 and 2 PCs → PC1, PC2.
  • Connect PC1 → SW1 Gi0/1; keep PC2 spare to test a violation later.

What you will do

  1. Enable sticky port security
  2. Set the violation action
  3. Harden access to the device
  4. Verify the secured port
  5. Violation defaultquestion

How it works

The lab opens in your browser: a real terminal or desktop, nothing to install. Work through the tasks, press Check after each one and the portal verifies your work. Stuck? Ask for a hint. Finish every task and you get a certificate page with its own verification link for LinkedIn or your CV.