Hi,
I used WireShark many years ago exactly for what you are talking about. As I recall, there wireshark had all the ports represented. I had to select the right conversation( port) for it to monitor. Then there were several display modes to select after getting your correct port and clearing the screen. Then you could watch YOUR data go by.
I don't even have it installed any more so this info is from what I can recall.
Good luck,
ROn