ZyXEL P-2812HNU-51c User Manual download pdf (Page 179)

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Chapter 7 Wireless LAN

P-2812HNU-51c User’s Guide

179

The following figure shows a WPS-enabled client (installed in a notebook

computer) connecting to a WPS-enabled access point.

Figure 77 How WPS works

The roles of registrar and enrollee last only as long as the WPS setup process is

active (two minutes). The next time you use WPS, a different device can be the

registrar if necessary.

The WPS connection process is like a handshake; only two devices participate in

each WPS transaction. If you want to add more devices you should repeat the

process with one of the existing networked devices and the new device.

Note that the access point (AP) is not always the registrar, and the wireless client

is not always the enrollee. All WPS-certified APs can be a registrar, and so can

some WPS-enabled wireless clients.

By default, a WPS devices is “unconfigured”. This means that it is not part of an

existing network and can act as either enrollee or registrar (if it supports both

functions). If the registrar is unconfigured, the security settings it transmits to the

enrollee are randomly-generated. Once a WPS-enabled device has connected to

another device using WPS, it becomes “configured”. A configured wireless client

can still act as enrollee or registrar in subsequent WPS connections, but a

configured access point can no longer act as enrollee. It will be the registrar in all

subsequent WPS connections in which it is involved. If you want a configured AP to

act as an enrollee, you must reset it to its factory defaults.

SECURE TUNNEL

SECURITY INFO

WITHIN 2 MINUTES

COMMUNICATION

ACTIVATE

WPS

ACTIVATE

WPS

WPS HANDSHAKE

REGISTRAR

ENROLLEE

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