I have 3 IP-Camera's outside my house, they are all connected via network(RJ45) to my 8 port POE switch (D-LINK XXXX). The POE switch is connected to a 18 port switch (D-LINK XXXX), and finally that is connected to my router (UNIFI Security Gateway).
The camera's are used by a Synology NAS on my local network, to record the video to the NAS.
The Camera's are mounted with screws, and can be taken down. Anyone could take the network cable and plug it into a laptop, and access local network and/or use my internet.
Is there any way I can make the camera network isolated and still let my Synology NAS connect to them?