The error refers to the LINKTYPE_LINUX_SLL2 data link type . This is a modern encapsulation format used by tcpdump and libpcap when capturing traffic on the "any" interface (e.g., tcpdump -i any ) on newer Linux distributions. Why the error occurs
Wireshark’s editcap can change the encapsulation:
For further reading:
The error refers to the LINKTYPE_LINUX_SLL2 data link type . This is a modern encapsulation format used by tcpdump and libpcap when capturing traffic on the "any" interface (e.g., tcpdump -i any ) on newer Linux distributions. Why the error occurs
Wireshark’s editcap can change the encapsulation: -pcap network type 276 unknown or unsupported-
For further reading: