I've got a cisco 1240AG K9 AP plugged into a DSL router. It has a factory config with DHCP enabled and one SSID. This AP is set up for open, unsecure internet access in our dining areas. Problem is, I have office PCs in the vicinity jumping on it to get out throughout the day. Is there a way to put their mac addresses in and block them? I do not want to enable any kind of authentication/security as this is supposed to be open for outside users at lunch.
Thanks for any help.