Does the Cisco wireless LAN solution include a mechanism by which a client PC is prohibited from associating to an AP if it is already connected to the wired network?
My thought is that it does not - and probably no one's does. How would the AP or the controller have any knowledge of whether a client PC has a hard-wired comnnection to the LAN? I would think that this is an endpoint responsibility. The PC's OS will select the wired connection over the wireless.