Step 1: Download and install WatchGuard System Manager 12.5.2 (firewall configuration management software)
Step 2: Run the software (Connect to Device) after installation, as shown in the following figure:
After successful login, it is as follows:
Step 3: Click "Tools" in the menu bar - then click "Policy Manager", as shown in the figure below:
After waiting a few seconds, proceed directly to the following interface (Fireware Policy Manager interface):
Step 4: Add strategy, map 80 and 3389 ports, as shown in the figure below:
Step 5: Configure policy, add SNAT, configure mapping, as shown below:
Finally: save the configuration and test by yourself (the configuration steps of port 3389 are the same as the configuration of 80, just change the port number. 192.168.7.2 is the address of the intranet server I want to map, you just need to replace it with your own intranet server address. !!!)