editcap -T 1 broken_type276.pcap fixed_ethernet.pcap
If you cannot upgrade tools, the pcap header to map DLT 276 to a supported type. Warning: This is not semantically correct unless your packets are actually Ethernet frames. For BLE packets, this will corrupt display. But if the file should be Ethernet, or you are desperate to parse something: -pcap network type 276 unknown or unsupported-
: This format is used by Linux kernels to capture packets from multiple interfaces simultaneously (e.g., using tcpdump -i any ) or from interfaces that do not have a standard Ethernet header . editcap -T 1 broken_type276
-pcap network type 276 unknown or unsupported- -pcap network type 276 unknown or unsupported-