ZyXEL Communications G-220 v3 Guide de l'utilisateur télécharger pdf (Page 43)

ZyXEL G-220 v3 User’s Guide

Chapter 3 Wireless LAN Network 43

Figure 21 Example WPS Process: PIN Method

ENROLLEE

SECURE EAP TUNNEL

SSID

WPA(2)-PSK

WITHIN 2 MINUTES

COMMUNICATION

This device’s

WPS

Enter WPS PIN

WPS

from other device:

WPS PIN: 123456

WPS

START

WPS

START

REGISTRAR

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.

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ZyXEL Communications G-220 v3 Guide de l'utilisateur Page 43