There are some limitations with IPv6 depending on what products you are using. For example the unleashed software does not support IPv6. With ZoneDirector there are some limitations. Can you confirm what software you are using (AP version and also provisioning system version)?
For Walled Garden Entry, only the formats below are supported :
- IP (e.g. 10.11.12.13) - IP Range (e.g. 10.11.12.13-10.11.12.15) - CIDR (e.g. 10.11.12.100/28) - IP and mask (e.g. 10.11.12.13 255.255.255.0) - Precise web site (e.g. www.ruckus.com) - Web site with special regular expression like - *.amazon.com - *.com
This means that IPv6 definitions are not supported.