-pcap Network Type 276 Unknown Or Unsupported- -

editcap -T 1 broken_type276.pcap fixed_ethernet.pcap If the packets are raw IP (no header, Type 101):

For example, if you know the packets are actually raw Ethernet (Type 1): -pcap network type 276 unknown or unsupported-

-pcap network type 276 unknown or unsupported- editcap -T 1 broken_type276