I'm setting up multiple DVRs on one network. I have nine different DVRs, all with independent IP addresses. These DVRs will be viewed remotely. Traditionally, when I set up one DVR on a network, I open Port 8000, Port 80, and Port 554. However, I'm putting nine DVRs and I know when I use multiple DVRs, I have to open multiple ports. I know I can use 8000 to 8009 on all nine DVRs, and I also known that I can use 80 to 89, but on the 554 Port, I've noticed that the numbers jump around. I don't have a good grasp on this so any help on why the 554 Port numbers bounce around would be helpful.