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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

Capture CoAP traffic using wireshark in cooja simulator

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.

Browse and open file pcap file