This article came from the need of another local tech company to forward an Exacqvision Web Portal to something other than port 80, as it was already in use. I could not find a detail article on how to accomplish Sophos DNAT while changing the port number:
How to configure Sophos DNAT for an internal server
Navigate to Firewall then click +Add Firewall Rule and select Business Application Policy.
Select Application Template and choose DNAT/Full NAT/Load Balancing.
Fill out the settings as shown below:
Source Zones: WAN (and LAN if needed)
Allowed Client Networks: Any
Destination Host/Network: WAN Interface (#eth0-? whichever one you use)
Services: Either select the service you already created or create a new one for the external port to be used as below
Protected Servers: Select an existing or create a host entry for the internal server.
Protected Zone: Select the Zone in which the host resides (LAN or DMZ).
Change Destination Port(s): Check this then change the port to the internal port.
Click Save to save the configuration.
If your company is using a Sophos router and is unsure of how to configure it, then contact us for assistance in making the best use of your router.
And God will generously provide all you need. Then you will always have everything you need and plenty left over to share with others. As the Scriptures say,
“They share freely and give generously to the poor. Their good deeds will be remembered forever.”
For God is the one who provides seed for the farmer and then bread to eat. In the same way, he will provide and increase your resources and then produce a great harvest of generosity in you. - 2 Corinthians 9:8-10