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Chapter 3 Wireless LANs

NWD-211AN User’s Guide

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.

3.4.3.1 Example WPS Network Setup

This section shows how security settings are distributed in an example WPS setup.

The following figure shows an example network. In step 1, both AP1 and Client 1

are unconfigured. When WPS is activated on both, they perform the handshake. In

this example, AP1 is the registrar, and Client 1 is the enrollee. The registrar

randomly generates the security information to set up the network, since it is

unconfigured and has no existing information.

Figure 25 WPS: Example Network Step 1

In step 2, you add another wireless client to the network. You know that Client 1

supports registrar mode, but it is better to use AP1 for the WPS handshake with

the new client since you must connect to the access point anyway in order to use

the network. In this case, AP1 must be the registrar, since it is configured (it

already has security information for the network). AP1 supplies the existing

security information to Client 2.

Figure 26 WPS: Example Network Step 2

REGISTRARENROLLEE

SECURITY INFO

CLIENT 1

AP1

REGISTRAR

CLIENT 1

AP1

ENROLLEE

CLIENT 2

EXISTING CONNECTION

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