Hi,
We would like to get an example configuration for port forwarding with an external port and a different internal port.
For example I would like people to hit my RDP with port number 3356 and forward it to my internal server port rdp (3389)
Nidhin Venu
Hi, Thanks for reaching out to Sophos Community.
If this is v18, You can refer to this article for your reference.
In the NAT rule, You can define separate original and translated services for your requirement and Define a firewall rule to allow traffic on Original Service (Port)
Here's a snapshot for your reference,
NAT RULE : 
Firewall Rule :
