# https://www.tcpdump.org/pcap/pcap.html # Headers "\xa1\xb2\xc3\xd4" "\xd4\xc3\xb2\xa1" "\xa1\xb2\x3c\x4d" "\x4d\x3c\xb2\xa1" current_version="\x02\x00\x04\x00"