I currently have 6 CCTV cameras in my house, which are physically wired to a DVR. I can view these cameras through a monitor using DVI out. However, I would like to be able to view these cameras from anywhere I can access the Internet. The DVR that I have has an Ethernet port. Do I need to host a server to stream these cameras online, or can I simply connect the DVR to my router and then access the router through a static ip?