3.8 
Wireless
Ubee Interactive
42
DDW3612 Subscriber User Guide
•
July, 2010
WPA
Wi-Fi Protected Access (WPA) is a subset of the IEEE 
802.11i standard. Key differences between WPA and 
WEP are user authentication and improved data 
encryption.
WPA-PSK
If you don't have an external RADIUS server you should 
use WPA-PSK (WPA Pre-Shared Key) that only requires 
a single (identical) password entered into wireless 
gateway and wireless client. As long as the passwords 
match, a client will be granted access to the wireless 
LAN.
WPA2
Advanced protocol, certified through Wi-Fi Alliance's 
WPA2 program, implements the mandatory elements of 
802.11i. In particular, it introduces a new AES-based 
algorithm, CCMP, that is considered fully secure.
WPA2-PSK
If you don't have an external RADIUS server you should 
use WPA2-PSK (WPA Pre-Shared Key) that only requires 
a single (identical) password entered into wireless 
gateway and wireless client. As long as the passwords 
match, a client will be granted access to the wireless 
LAN.
WPA/WPA2 Encryption
Switch to enable or disable WPA/WPA2 encryption.
WPA Pre-Shared Key
The encryption mechanisms used for WPA and WPA-PSK 
are the same. The only difference between the two is that 
WPA-PSK uses a simple common password, instead of 
user-specific credentials. Refer to 
page 4 
for the default 
value of the shared key.
RADIUS Server
Input the IP address of RADIUS server, if used.
RADIUS Port
Enter a RADIUS port number when WPA or 802.1x 
network authentication is selected.
RADIUS Key
Enter the RADIUS Key when WPA or 802.1x network 
authentication is selected.
Group Key Rotation Interval
Allows the wireless router to generate the best possible 
random group key and update all the key-management 
capable stations periodically.
WPA/WPA2 Re-auth Interval
Wireless router (if using WPA-PSK key management) or 
RADIUS server (if using WPA key management) sends a 
new group key out to all clients. The re-keying process is 
the WPA equivalent of automatically changing the WEP 
key for a wireless access point and all stations in the 
WLAN on a periodic basis. Setting of the WPA Group Key 
Update Timer is also supported in WPA-PSK mode.
Label
Description