Router Settings for FTP Ports

Hi I have setup FTP with TLS on my MyCloud World, now I need to do the port forwardings on my router. Which ports do I need to forward?

My Cloud World? Don’t think there is such a device. Do you mean My Book World? If so there is a different subforum for that device since is completely different than a My Cloud device.

https://community.wd.com/c/wd-legacy-products/other-network-drives/35

Generally FTP uses port 21. In some instances it may use port 20.
If I remember right SFTP uses port 22. In in some cases for SSL or TLS over FTP one may have to enable ports 989 & 990.