There is no "local" communication in your design unless you a) lease a circuit from some local provider between the buildings or b) run your own cable or wireless bridge between the buildings. Without a or b above, you are dependent on the internet being up, regardless of whether you hairpin through the hub or if you have spoke to spoke/site to site tunnels. You can do this for these three buildings. https://documentation.meraki.com/SASE_and_SD-WAN/MX/Design_and_Configure/Configuration_Guides/Site-to-site_VPN/Site-to-Site_VPN_Settings ... View more

I don't understand, if you have 3 MXs (one for each building) why wouldn't the cameras be able to communicate with the NVR in building 1? What is the CCTV system you have? Does it require layer 2 adjacency between the cameras and the NVR?   Meraki Autovpn supports spoke to spoke communication, which should address your concern (unless I'm not understanding what you are asking 🙂 ). Thanks! ... View more

If the networks are not connected then why do you want to use the same address space in the different buildings? ... View more

Try you AM. again.  I wouldn't know if they are accepting  more beta clients. I can tell you that it feels like an early beta feature 🙂 . ... View more

It's in beta. https://documentation.meraki.com/Meraki_Internal/Draft_Articles/SecureConnect ... View more