In a Meter network, the controller is the central point for information ingress and egress. It routes all traffic between the local area network and the internet (ISP). It orchestrates network security (ACLs) and configuration (Dashboard), access point provisioning, VLAN tagging, and communication between Meter devices and the Meter Cloud.
Meter devices are secured against attacks as best as possible. All ports are blocked by default which means, all traffic not originating from local devices is dropped. Ports can be enabled as needed.
There are two types of communication that happen on the Meter network:
Between the Controllers and Access Points (APs)
Between the Controllers and the Meter Cloud