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My current set up is 1 router and 2 switches, the router being 192.168.10.1 with a connection to each switch then 8 and 10 devices on the 2 switches all 192.168.10.x

I have an NVR with 2 ports, 1 of which is connected to the second switch as 192.168.10.128

The second port is for connection to Cameras/Audio etc and is currently set at 192.168.30.1 with the 6 cameras addressed as 192.168.30.x and connected to a separate PoE switch.

I am wanting to add 2 additional cameras at the far end of the building but cannot cable these direct to the PoE switch, so I am hoping to add another PoE switch for the 2 additional cameras and connect this to the router/switch 1 and connect the other switch to switch 2 so effectively I would have 2 unrelated networks, which do not need to talk to each other running on one physical network.

Would this work or would 2 ranges not talking cause problems?

Thanks in advance

  • It sounds like you just need to use VLANs. – Ron Maupin Feb 23 at 18:52
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You can run multiple IP subnets on the same Ethernet segment. However, this very rarely makes sense. In your case, I would renumber one subnet when connecting both switches.

DHCP is a convenient way to organize IP addresses. Likely, you'd want to reserve the camera addresses on the DHCP server, so each one keeps its IP address permanently.

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  • Thanks for the reply, The problem I have is that the NVR will not allow camera connections on the main port and will also not allow the 2 ports to be on the same subnet or in the same range, the camera port is the gateway for that range and needs to remain separate, also from a security perspective as I would not want the cameras on the network with internet access – Daryl RN Feb 23 at 18:50
  • You might want to consider using VLANs to cleanly partition the camera segments from the rest of the network. – Zac67 Feb 23 at 18:56

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