User`s manual
www.modecom.eu
54
WLAN Router
PIN into registrar, starting the PIN method on that device and simply wait until the device joins the network. After the
PIN method is started on both sides, a registration protocol will be initiated between the registrar and the enrollee.
Typically, a registrar could be an access point or other device that is capable of managing the network. An enrollee co-
uld be an access point or a station that will join the network. After the registration protocol has been done, the enrollee
will receive SSID and security settings from the registrar and then join the network. In other words; if a station attempts
to join a network managed by an access point with built-in internal registrar, users will need to enter station’s PIN into
the web page of that access point. If the device PIN is correct and valid and users start PIN on station, the access point
and the station will automatically exchange the encrypted information of the network settings under the management
of AP’s internal registrar. The station then uses this information to perform authentication algorithm, join the secure ne-
twork, and transmit data with the encryption algorithm. More details will be demonstrated in the following sections.
Supported WPS features
Currently, Wireless Gateway supports WPS features for AP mode, AP+WDS mode, Infrastructure-Client mode, and
the wireless root interface of Universal Repeater mode.
Other modes such as WDS mode, Infrastructure-Adhoc mode, and the wireless virtual interface of Universal Repeater
mode are not implemented with WPS features.
If those unsupported modes are enforced by users, WPS will be disabled. Under the conguration of every WPS-
supported mode, Wireless Gateway has Push Button method and PIN method. For each method, Wireless Gateway
oers dierent 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 convenience.
AP mode
For AP mode, Wireless Gateway supports three roles, registrar, proxy, and enrollee in registration protocol. At die-
rent scenarios, Wireless Gateway will automatically 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 trans-
mitted 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 station’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 sta-
tion 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