On Jun 8, 2016, at 11:10 PM, Robert Cragie <robert.cragie@xxxxxxxxxxxxx> wrote:
> It's basically an 802.15.4 MAC frame plus an additional byte at the beginning placed into the payload of a UDP datagram.
So the answer to my question is "it runs atop UDP".
So:
if there's a standard UDP port number atop which it runs, you should...
> The only thing the CoAP dissector does in addition is to add a port using dissector_add_uint()
...register it in the "udp.port" dissector with that port number;
if there *is* no standard UDP port number atop which it runs, you should register it in the "udp.port" dissector with a call to dissector_add_for_decode_as().