Port numbers bounce around

Tags:
Networking
Port forwarding

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.

Thanks.

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  • TheRealRaven
    ...but on the 554 Port, I've noticed that the numbers jump around.

    Port 554 is assigned for Real Time Streaming Protocol.

    But how do you "notice" that the "numbers jump around"? What are you looking at? Are these DVRs recording from the external network?

    If each device has its own address, have you experienced problems when ports are not forwarded?
    35,130 pointsBadges:
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  • Subhendu Sen
    How did you know that, 554 port is jump around? Is there an error message? If so, what error message is shown there?
    139,010 pointsBadges:
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