Sixfab core firewall ports

I am running sixfab core with a 4g LTE hat with Agent Version: 1.5.0/Manager Version: 1.8.0 .
I would like to protect the incoming Internet ppp connection with a iptables firewall. What are the ports required for the sixfab core web gui and terminal application that are required for me to open in order to work properly and not get locked out of the functions?