firewall ix20 open port

How can I open a port for modem ix20. I have a python script with a socket listening on port 8887 but no incoming request is received because of the firewall.

Thank you,

Hello did you find a answer to this? Im experiencing the same issue.
I do see in the firewall logs that the packet is being drooped.

I tried turning on a blanket allow for all ports and all zones, and for for specific zones and traffic both of those did not work

For port 1234:
iptables -I INPUT -p tcp --dport 1234 -j ACCEPT