If those unsupported modes are enforced by users, WPS will be disabled.
Under the conguration of every WPS-supported mode, Wireless Gateway has Push
Buttonmethod and PINmethod. For each method, Wireless Gateway offers different
security levels included in network credential, such as open security, WEP 64 bits,
WEP 128 bits, WPA-Personal TKIP, WPA-Personal AES, WPA2-Personal TKIP, and
WPA2-Personal AES. Users could choose either one of the methods at their conve-
nience.
AP mode
For AP mode, Wireless Gateway supports three roles, registrar, proxy, and en-
rollee in registration protocol. At different scenarios, Wireless Gateway will automati-
cally switch to an appropriate role depending on the other device’s role or a specic
conguration.
AP as Enrollee
If users know AP’s PIN and enter it into external registrar, the external registrar will
congure AP with a new wireless prole such as new SSID and new security settings.
The external registrar does this job either utilizing the in-band EAP (wireless) or out-
of-band UPnP (Ethernet). During the WPS handshake, a wireless prole is encrypted
and transmitted to AP. If the handshake is successfully done, AP will be re-initialized
with the new wireless prole and wait for legacy stations or WPS stations to join its
network.
AP as Registrar
Wireless Gateway also has a built-in internal registrar. Whenever users enter sta-
tion’s PIN into AP’s webpage, click “Start PBC”, or push the physical button, AP will
switch to registrar automatically. If users apply the same method on station side
and the WPS handshake is successfully done, SSID and security settings will be
transmitted to that station without the risk of eavesdropping. And then the station will
associate with AP in a security-enabled network.
AP as Proxy
At this state, AP is transparent to users. If users want to congure a station or
any device that is capable of being an enrollee, they have to enter device’s PIN
into an external registrar and choose an appropriate wireless prole. After the PIN
is entered, the external registrar will inform AP this event. AP then conveys the
encrypted wireless prole between the device and the external registrar. Finally,
the device will use the wireless prole and associate with AP. However, the device
may connect to other APs if the wireless prole does not belong to the proxy AP.
Users must carefully choose the wireless prole or create a wireless prole on an
external registrar.
Infrastructure-Client mode
In Infrastructure-Client mode, Wireless Gateway only supports enrollee’s role. If
users click “Start PIN”, click “Start PBC”, or press the physical button on Wireless
Gateway, it will start to seek WPS AP. Once users apply the same method on regis-
trar side, Wireless Gateway will receive the wireless prole upon successfully doing
the registration protocol. Then Wireless Gateway will associate with an AP.
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