TCP/IP is not working

I need to expose a port from the remote device. I have configured the interface in this way but it doesn’t work.

For this type of port I have to create an Application as for ssh?
Where am I wrong?

Cloudflare Tunnels only expose HTTP/HTTPS as-is without client software - if you want to access arbitrary TCP, you need cloudflared running on the devices that are accessing it.

https://developers.cloudflare.com/cloudflare-one/applications/non-http/arbitrary-tcp/#connect-from-a-client-machine

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