@_Val_ thanks for the response! so as per my understanding
1. Traffic from source network comes to orchestrator
2. then orchestrator send the traffic to respective gateway of that security group
3. Gateway will process this traffic and send back to orchestrator over the downlink
4. Orchestrator then send this traffic to destination
Summary:
1.Gateways will just receive traffic from orchestrator, process the traffic and send back to orchestrator
2. Gateways will never have Internal or External connection connected to them physically