ZyXEL P-870H-53A v2 User Guide - Page 111
How WPS Works
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Chapter 7 Wireless LAN The following figure shows a WPS-enabled wireless client (installed in a notebook computer) connecting to the WPS-enabled AP via the PIN method. Figure 58 Example WPS Process: PIN Method ENROLLEE WPS This device's WPS PIN: 123456 REGISTRAR WPS Enter WPS PIN from other device: WPS START WPS START WITHIN 2 MINUTES SECURE EAP TUNNEL SSID WPA(2)-PSK COMMUNICATION 7.10.4.3 How WPS Works When two WPS-enabled devices connect, each device must assume a specific role. One device acts as the registrar (the device that supplies network and security settings) and the other device acts as the enrollee (the device that receives network and security settings. The registrar creates a secure EAP (Extensible Authentication Protocol) tunnel and sends the network name (SSID) and the WPAPSK or WPA2-PSK pre-shared key to the enrollee. Whether WPA-PSK or WPA2-PSK is used depends on the standards supported by the devices. If the registrar is already part of a network, it sends the existing information. If not, it generates the SSID and WPA(2)-PSK randomly. P-870H/HW Series User's Guide 111