Unparsable MAVLINK payload while receiving Multiple MAVLink messages in single TCP packet

[Varun Parihar]

Hi All,
While capturing packets between Mission Planner and SITL, we are getting some bytes of payload data of MAVLink frames in the next TCP PAYLOAD, because of which we are receiving an unparsable payload in Wireshark. Can anyone guide me with this problem?
Wireshark Version 4.0.6 (v4.0.6-0-gac2f5a01286a).

Here I have attached the screenshots along with sample pcap file.
Thanks,
Varun Parihar

[Hamish Willee]

No idea. First thing I would try is to see if it happens with plugin generated by https://github.com/ArduPilot/pymavlink/pull/817 - that's recently had a lot of work. I wouldn't expect it to fix this problem, but it might.

Then suggest you raise an issue in https://github.com/ArduPilot/pymavlink,, attaching your information above. Please include versions of Mission Planner and ArduPilot, along with platform on which you are running wireshark