NAT Setup Help and Explanation

strandmgmt Posts: 1
edited April 14 in Security
I want to create the configuration necessary to do the following -
I have a remote machine which I need to RDP from to a workstation inside the local network. Let's call the IP of the remote machine SPHome. The machine I want to connect to is at Let's call the public IP of my network MyPublicIP. And I want to use port 3390 for the connection. So I want to RDP to "MyPublicIP:3390".

So I tried to set up a rule to test the configuration and I named it RDPTest. It is shown below. 

In the Mapping Rule section what is the difference between the Incoming Interface and the Source IP?

What else might I be doing wrong?

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