How Wps Works - ZyXEL Communications LTE4506-M606 User Manual

Chapter 5 Wi-Fi
Figure 24 Example WPS Process: PIN Method
ENROLLEE
REGISTRAR
WPS
WPS
WITHIN 2 MINUTES
SECURE EAP TUNNEL
SSID
WPA(2)-PSK
COMMUNICATION

5.6.5.3 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.
LTE4506 User's Guide
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