How can I configure Inbound routing for an RDP connection?

Question

I have a virtual XG running on a hyperV environment as a trial for our business but am having issues with allowing RDP into the environment. 
 I have the following configuration. 
 Port 1 - (LAN Zone) 192.168.2.240 
 Port 2 (WAN Zone) 192.168.3.240 Gateway 192.168.3.225 
 All outbound traffic is fine. 
 I created a rule to allow traffic in via TCP port 3389 (RDP) from the WAN zone to the LAN zone and am running a VPN server on the gateway. VPN clients connect fine from an external IP (I can browse to the gateway/s web interface) but I can't ping the internal network from the gateway at all, let only any RDP traffic. 
 Any assistance is appreciated.

MayurMakvana · Answer

Hi, 
 Greeting, 
 We suggest to create the business policy with the port 3389 to let the RDP traffic in. If you are connecting the VPN on the XG device, you will have to create the VPN to LAN and LAN to VPN firewall rules to allow the traffic of the VPN client. 
 
 -Mayur Makvana