I know Finland isn't exactly friendly with Russia, but the fact that you argue this from an instance run by someone a hop and a skip from Moscow is a beautiful irony...
All trolls, no, but given the notorious prevalence of media manipulation seen out of the region it's a given that some not insignificant portion of the loudest voices are here looking to cause trouble.
Question here, why do the cameras I need to only connect to that one? Using an extender won't create a truly separate net, some might create a NAT to look separate but you can still connect from the extenders net to the host net.