If a machine is in standby mode (listening to WoL packets), there is no session active because no traffic is being emitted by that host. Or are they, that actually a good question...
If not, in case the port/MAC is unauthorized, how do I make WoL work? Will the switch still forward WoL packets nevertheless? In what VLAN would that be in case I would be using VLAN authorization (meaning no VLAN would be set without a session active)? Would I need to set a special static "WoL-VLAN"?