-pcap Network Type 276 Unknown Or Unsupported-

PCAP Network Type 276 (LINKTYPE_SCLIB) is a specific data link type used by Cisco Systems for internal diagnostic packet captures, particularly on Nexus and ACI platforms.

The Error: -pcap network type 276 unknown or unsupported- -pcap network type 276 unknown or unsupported-

Why the error happens: Older versions of Wireshark (generally those prior to v3.3.0) do not recognize this newer header type and cannot parse the file. How to Fix It PCAP Network Type 276 (LINKTYPE_SCLIB) is a specific

3.3 Check libpcap Version

tshark --version | grep "with libpcap"
# or
ldd `which tcpdump` | grep pcap
rpcinfo -p | grep -i pcap  # alternative