Configuring CoAP port using Decode As

You can apply the CoAP protocol settings once on a per-capture basis using the Decode As option.

To configure the CoAP port using this option:

1. In Wireshark, go to Analyze > Decode As....
2. In the Decode As... settings window, click the + button to add a new entry with the Field set to UDP port, value set to 61631, and Current set to CoAP.
   
3. Click OK to save the Decode As... settings.