RV50 10.x.x.x network

I’m working on a project with an existing control system and the existing hardware is all live and the IP addresses cannot be easily changed. I need to access several IP:port from the public side

It appears that the RV50 will not allow us to port forward to the 10.x.x.x network. But will allow us to port forward the 192.x.x.x network and the 172.x.x.x network

Any thoughts?