Wireshark is one of the best data packet analyzers. It analyzes deeply the packets in frame level. You can get more information on Wireshark from their official webpage: https://www.wireshark.org. In Kali, it is found using the following path - Applications → Sniffing & Spoofing → wireshark.
Once you click wireshark, the following GUI opens up.
Click “Start” and the packet capturing will start as shown in the following screen-shot.
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