Zyxel NXC2500 [25/25] Conclusion

NXC Application Note

Conclusion:

Portal redirection on the AP is a new feature for the 11ac generation. The legacy captive

portal will be handling all tasks of the controller, which has to process either

authentication or data traffic from distributed traffic. 11ac is a new WiFi technology with

more throughput than the 11n. To transfer to the 11ac will be a big challenge for the

structure of the controller. How to offload the traffic stress on the controller is currently

an important issue. ZyXEL’s new technology, the Portal Redirect feature on the AP is

considered an innovation to separate the authentication traffic and data flow on local

site APs. As long as clients pass the captive portal authentication, all the traffic can be

unloaded locally to save the remote bandwidth. Thus, the controller’s traffic loading is

reduced.