Connect to mongodb instance with port forwarding

Hello, I am running my mongodb instance on a protected server, which is not accessible from the outside.
I want to make my database available with reverse port forwarding to an accessible server with a command on the protected server like:
ssh -R my_open_server

This should then make my databases accessible via the ip address of my_open_server. But somehow this does not work.
Does someone know why?
Do I have to change the bindIp to the ip of my_open_server?