Wireless network in controller-based environment is good place to start playing with IPv6. You can create separate VLAN and SSID to provide IPv6 service within network. Cisco wireless devices cannot be configured with IPv6-intelligence yet, therefor you can’t assign IPv6 address to access point or BVI interface if needed nor provide any security features. But they can pass IPv6 traffic between IPv6-aware routers and client devices.
By default stand-alone access point pass IPv6 traffic so no additional configuration is needed as long as routers, where particular VLAN is terminated, is properly configured. On Wireless LAN Controllers IPv6 pass-through have to be enabled for particular WLAN.
IPv6 support can be enabled in Advanced tab of WLAN configuration on controller. But, for some unknown reason, this feature is not available on WLC series 2000, 2100 and NME-WLC, even tho it’s visible on configuration panel. Also 7.0 firmware is recommended.