Pixhawk 6X ethernet connection to mavproxy LINK Down

Hi everyone,
I trying to connect my pixhawk 6X to my computer (khadas vim4) over the ethernet. I will send the mavlink to control the drone. But i have some issue, when i try to connect using UDP it seems no data come, and using TCP got 111 error. But when I check using ping it connected. Bellow i attach the terminal, and my pixhawk setup. I will appreciate any help from you. Thanks