Capture Packets on Router's LAN

1. Navigate to Configuration > LAN > LAN Port Mirror.

Toggle Enabled to activate the port mirroring feature.

Select Port2, Port3, or Port4 as the destination port for Mirror Packets to.

In the Mirrored Source section:

Toggle Enable Fast Path if you want to captured the accelerated packets.

Toggle Slow Path if you want to mirror regular traffic.

Select the Mirrored Port from which traffic will be mirrored.

Click Apply to save the settings.

2. Launch Wireshark on the computer connected to the Mirror Packets To port. (you may need to run it as Administrator.) Select the network interface that connects to the router, then click Start to begin capturing packets.

3. We should see packets originating from or passing through the mirrored LAN port appearing in the packet capture.

4. After collecting the packets we need, click the stop button.

5. Save the file.

6. After completing the packet capture, disable the Port Mirror function to resume normal operation.

1. Go to LAN >> Switch >> Mirror:

Check Enable
Choose Mirroring Port to which the computer is connected
Choose Mirrored Port as the LAN interface we would like to capture the packets.

2. Run Wireshark on the computer (you might need to Run As Administrator), choose the network Interface to which the router is connected. Then, click Start.