-pcap Network Type 276 Unknown Or Unsupported- !!link!! Jun 2026

You are using an older version of Wireshark or tcpdump that predates the addition of the SCLP link type.

The simplest solution is often the most effective. Link Type 276 support has been added to more recent versions of the libpcap library and Wireshark. -pcap network type 276 unknown or unsupported-

tshark -r capture.pcap -T fields -e btle.advertising.address -e btle.data You are using an older version of Wireshark

tshark --version | grep "with libpcap" # or ldd `which tcpdump` | grep pcap rpcinfo -p | grep -i pcap # alternative -pcap network type 276 unknown or unsupported-

Have a different unknown DLT error? (e.g., 147, 189, or 277)? The same principles apply. Use editcap -T wisely and always keep a backup of your original capture.