However, with the advent of Wireshark, all that has changed. In the past, such tools were either very expensive, proprietary, or both. You could think of a network packet analyzer as a measuring device used to examine what's going on inside a network cable, just like a voltmeter is used by an electrician to examine what's going on inside an electric cable (but at a higher level, of course). A network packet analyzer will try to capture network packets and tries to display that packet data as detailed as possible. You can export the information captured by the program to XML, PostScript, CSV, and plain text formats.Wireshark is a network packet analyzer. In addition, it supports various capture file formats: tcpdump, catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer, and so on. Wireshark is compatible with many devices and networks: Ethernet, IEEE 802.11, ATM, Bluetooth, Bluetooth, USB, Token Ring, and Frame Relay, among others. Wireshark can extract compressed data files on the fly using GZip and decode secure protocols such as IPsec, ISAKMP, Kerberos, SSL/TLS, or WPA/WPA2. Capture is performed in real time, but analysis can be done offline and scanned using the program's own interface, TTY or TShark (command line tool included with Wireshark). The extensive filtering system included with Wireshark allows some data packets to be selected and others to be discarded.

A hexadecimal display at the bottom details the contents of each captured data packet. Wireshark is a tool for revealing the content of network communications by analyzing the protocols involved in this process and the data packets intercepted by the various devices installed in the system.

For android instal Wireshark 4.0.7