The Wireshark installation can easily be done using the simple installation command mentioned above, and after completing the installation, you must select your network interface to start monitoring the network traffic. Wireshark is a robust platform to monitor network traffic on different network interfaces and you can analyze the data packet from a network source right onto the software. If you want to stop the network traffic monitoring, you can click on the red stop button. The above output shows the source and destination addresses of the packet, port and sequence numbers. You will need to open any packet in the first section by double clicking it and you will get the macroscopic information of the selected packet. The third part shows you the packet contents in bytes and hexadecimal format. The second part shows the packet details in a readable text format. The first part shows you the packet list, where you will see all captured packets on the network.
You will see three different parts combined together on a single window. After the selection, click on the shark’s fin icon to monitor network traffic. In our case, we have a Wireless connection, so we are picking “wlan0”. Once you open the Wireshark application, the first thing you have to do is to select your network interface to monitor the traffic. The reason we are using “sudo” command is that Wireshark allows only the current Raspberry Pi user to perform the network-related activities.
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