Cisco WLC to Aruba ClearPass guest network.

Hey Networking Pros,

Are any of you running a guest network on a Cisco WLC offloaded to an Aruba Clearpass web server?

I am talking about where the splash page is hosted by the Clearpass server, instead of it done locally on the WLC.

I have come across some unofficial documentation that states that this is usually done by means of simply configuring the WLC for External Webauth, as opposed to a Central Webauth as done with Cisco ISE.

Do you guys use in your own deployments Mac filtering with AAA override and CoA like when authenticating to an ISE server, or are you just doing it as external auth to the Clearpass web server?

Does the Clearpass server even support CoA?

Any help is appreciated. -Thanks