Version 7.0.x
Port Number 49668 49669 49672 49673 49676 49677 49680 49681 4642 40004 for communication between Host controller and C100-MP. Port number 27000 for communication between License controller and Host controller.
Source
Destination
Port Group Index
TCP Port
Controller
Noded (Appliance)
1
49668
Fuzz Agent (Appliance)
49669
Scaler (Appliance)
NA
4642
2
49672
49673
So, most of the cases, Controller talks to appliances. However, when we run a Studio test, appliances will talk to the controller:4642 (TCP)