Restrict Multiple Logins

Hi. I have seen a few postings with links to articles that do no exist. Is there a way to only allow one login per mac address? I am hoping so. I just got my Coova ap configured perfectly and this may be the deal breaker. If there insn't a way to do this with the AP firmware, is it possible with an external server?

thanks

Yes, use radius and the

Yes, use radius and the simultaneous-use attribute.

kind regards