I want to connect remotely to my home pc from my office pc. I am behind a NAT at my home pc been given an internal IP by my ISP. How do I connect from my office using remote desktop connection. I do not have an external static IP ...Also are there any other ways to connect remotely keeping in mind i cannot install any software at my office. I tried using the free DNS service but still that does not work, probably because of ISP's firewall.