DW Spectrum Remote Camera Issue

I have 6 cameras installed in a airplane hanger and am using DW Spectrum to record them. I want to make sure I'm setting this up the best way. We have the server at the office, and I added the cameras to the enterprise server individially in DW Spectrum from the office. Using their public IPs and port numbers the cameras popped right up and are recording. Is that a adequate method for this...

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