-pcap Network Type 276 Unknown Or Unsupported- [90% COMPLETE]

from scapy.all import * packets = rdpcap("broken_type276.pcap") # Scapy may ignore DLT and guess wrpcap("fixed.pcap", packets, linktype=1) # Force Ethernet If you absolutely need to preserve DLT 276 because you are writing a custom dissector, you can modify pcap-common.c in the libpcap source. Add an entry to the dlt_to_linktype array:

276, "CUSTOM_MY_PROTO", DLT_CUSTOM , Recompile and install libpcap. This is overkill for most users. A security team was auditing a fleet of medical IoT devices (insulin pumps) that communicated via 802.15.4 (ZigBee). They captured traffic using a dedicated USB dongle which wrote pcap files with DLT 276 (mapped to DLT_IEEE802_15_4_TAP ). When they transferred the file to their central Linux analysis server (running RHEL 7 with an older libpcap), they received the error: -pcap network type 276 unknown or unsupported-

You run a command—perhaps a custom tcpdump filter, a tcpslice extraction, or a specialized fuzzer—and the terminal spits out: from scapy