Minecraft bungeecord server port sharing?

I made a bungee cord server but I'm not sure

which port releases I need.

Proxy: port 11111

server1: port 11122

server2: port 11133

Can someone tell me which ones to add.

Depends on how you set up your firewall, do you use iptables?

Ne I have a RaspberryPI for the server, I already had a spigot running.

Oh, you mean the ports on the router

Yes

It is enough if you release the tcp port 11111 of your proxy when you joint over it