I currently have WLC running 7.4 and would like to enable Encryption.
I can see I can enable Encryption globally under all APs.
My question is: - What does this encrypt? AP to Controller? - What consequences does this have other than performance and reboot of APs - Will this make packet sniffing harder for users connected to the Wireless Network?
The encryption function encrypts user data from AP to controller (capwap control packets are already encrypted). Depending on your model of controller, the performance can drastically degrade to the point of unusable.