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How to capture CoAP traffic using wireshark in cooja simulator


Wireshark is a network packet analyzer. A network packet analyzer will try to capture network packets and tries to display that packet data details. It’s a measuring device used to examine inside a network cable.


we need to capture the radio message packets,

In cooja menu bar tools option is there and click enable radio messages : terminal and follow these steps.

Tools >> Radio messages New terminal will appear,Open menu and enable : Analyzer>> 6lowpan Analyzer with PCAP


After completion of simulation the file will be created with extensions of ex.(radio log.pcap).

File will be created in this location

Home/ contiki/ tools/ cooja/ build/


Browse and open file pcap file.

It will display more details and option to traceout the data packets.

we can see time, source, destination, protocol, length, info,...etc. In details.