Route traffic from external to internal networks (RRAS)

I have a server with two NIC one directly to the internet and one to the internal network and I've managed the port 22 (SSH) to the External NIC to accept connections and using Private IP: 10.0.0.14.

If I show the mappings I get this result

Protocol,Direction, Private address,Private port,Public Address,Public Port,Remote Address,Remote Port,Idle time
TCP,Inbound, 10.0.0.14,22, 212.*.*.*,22, 85.*.*.*,52 541, 1

But the ssh klient says "timed out", it works within the private network but not from the external one.

Any  ideas?