ZyXEL G-220 User Guide - Page 41
How Wps Works, Enrollee, Registrar
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Figure 21 Example WPS Process: PIN Method ENROLLEE WPS This device's WPS PIN: 123456 WPS Enter WPS PIN from other device: ZyXEL G-220 v2 User's Guide REGISTRAR WPS START WPS START WITHIN 2 MINUTES SECURE EAP TUNNEL SSID WPA(2)-PSK COMMUNICATION 3.3.3 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 WPA-PSK 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. The following figure shows a WPS-enabled client (installed in a notebook computer) connecting to a WPS-enabled access point. Chapter 3 Wireless LAN Network 41