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- Launch the Wireshark app
- Select "Capture | Options"
- Enter "udp port 1812" in the Capture filter to capture UDP packet only
- Click the "Start" button to start capture
- Click "Capture | Stop" to end capture
- Enter "udp.port == 1812" in the display filter to display RADIUS traffic only
- You will now be able to view the Access-Request and Challenge packets
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