 It can parse and display the fields, along with their meanings as specified by different networking protocols.Wireshark uses pcap to capture packets, so it can only capture packets on the types of networks that pcap supports.Wireshark's native network trace file format is the libpcap format supported by libpcap and WinPcap, so it can exchange captured network traces with other applications that use the same format, including tcpdump and CA NetMaster.