Connection failed to RPC server on raspberry pi 4

Hi everyone,

I am trying to run a model on a raspberry pi 4 board which is connected to my server 206.225.132.64 with port number 6213. I am able to ping the board with the ip:port.

I ran the RPC server on the board using python -m tvm.exec.rpc_server --host 0.0.0.0 --port=9090. Now I tried to connect the server using tvm rpc using the below code

host = "206.253.143.21"
port = 9090
remote = rpc.connect(host, port)

and It doesn’t get a connection as I am not using the server port 6213 like
host = "206.253.143.21:6213" I don’t know how to use the port number to connect. any help? thanks