I've just upgraded our controllers from 4.1.185 to 4.2.130 and have noticed some new settings and features for Guest access, specifically on the interfaces and the wlans. Can some one point me to an updated guide on the explanation of these new additions and the recommend setup now? Until I see an explanation on paper so as I can fully understand it, I don't want to change my current setup. i.e. Guest Lan, Ingress Interface, Egress Interface.