For example I've added a Port Forwarding rule, with Host address: 127.0.0.1, Port number: 3389, Destination IP: 10.0.2.15, Destination Port: 3389. The assigned IP is 10.0.2.15 and I've tried a number of ways to connect - including both the setting 'Enable Remote Display' in VirtualBox and the Port Foward settings. Problem is I cannot connect to Windoes Remote Desktop in this scenario. I've set up a Windows Server 2008 in VirtualBox on my Mac, and I want it to be on a NAT interface.