Introduction
This document describes how to check IPv6 support on your device IOS.
Procedure
Go to Cisco Feature Navigator to verify if IPv6 is supported on your Hardware or Software. Please select the correct IOS feature set like IP Plus, Enterprise Plus, Advanced IP Services, etc for IPv6 functionality.
From the Feature Navigator, select Search by Feature and use "IPv6 (Internet Protocol Version 6)" as the feature. Select "IPv6 (Internet Protocol Version 6)" from the Available Features list, select Add and then Continue.
Reference
Cisco IOS IPv6 Configuration Guide, Release 12.4T
Useful Links
IPv6 support on Wireless Access Point (AP) and Wireless LAN Controller (WLC)
IPv6 support on Cisco WLC (Wireless LAN Controller) - Configuring IPv6 Bridging