-pcap Network Type 276 Unknown Or Unsupported- [Premium Quality]

hexdump -C suspicious.pcap | head -50

Look for the line:

PCAP files store a global header that includes a field called network (or linktype ). This integer specifies the data link layer protocol type for all packets in the file (e.g., Ethernet = 1, Linux cooked mode = 113, IEEE 802.11 = 105). -pcap network type 276 unknown or unsupported-