I have a guest wireless SSID set up and it happily tunnels users back to my Aruba-3600 controller at HQ where I drop off on our ISP.
Works great for CAP guests, and for iAP guests.
Locally I've been able to put wired guests on the same VLAN and they get access to the internet through the controller (no portal since I "trust" the vlan at the controller)
Would it be possible to connect a wires user to my switch-fabric and put her in the same VLAN as the Guest SSID and have the iAP 105 tunnel that VLAN back?