I am familiar with the Aruba methods of redirecting guest clients to clearpass for self registration etc. What other methods are available in an autonomous AP environment with for example, old Cisco autonomous APs. These are at small retail sites, about three or four APs acros a couple of hundred stores - so the solution would need to be cost effective for this scenario. A possibility exists for the guest traffic to be tunneled back to the core if necessary.
Appreciate any suggestions.