PCAP files

Attack tree

1 Capture packets
    1.1 tcpdump
    1.2 Wireshark
2 Analyse packets (packet tracing)
    2.1 tcpdump
    2.2 Wireshark


# tcpdump -i <interface> -w <file-name>
# wireshark <filename>


Packet Capture or PCAP (also known as libpcap) is an application programming interface (API) that captures live network packet data from OSI model Layers 2-7. Network analyzers like Wireshark create .pcap files to collect and record packet data from a network.