Linux Mint 22.1 network port setup trouble

Hello!
I want to note that I’m just started using linux and I don’t know much. I’m setting up it on a new device to learn new and not to have a headache with windows kms.
I use Zerotier for shared folders between my laptop (Mint 22.1) and desktop PC (windows 10) and for remote connection, so I need to setup several ports. All of them did setup automatically except one. Can someone explain me how to set up network ports in simple words, if it’s possible?

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