Linksys WRVS4400N Manual page 59

Shared Key. Enter the Shared Secret key used by the Wireless Router and RADIUS
server.
Key Renewal. Enter a Key Renewal Timeout period, which instructs the Wireless Router
how often it should change the encryption keys. The default is 3600 seconds.
WPA2-Enterprise Mixed
This security mode supports the transition from WPA-Enterprise to WPA2-Enterprise.
You can have client devices that use either WPA-Enterprise or WPA2-Enterprise. The
Wireless Router will automatically choose the encryption algorithm used by each client
device.
Encryption. Mixed Mode automatically chooses TKIP or AES for data encryption.
RADIUS Server. Enter the RADIUS server's IP address.
RADIUS Port. Enter the port number used by the RADIUS server. The default is 1812.
Shared Key. Enter the Shared key used by the Wireless Router and RADIUS server.
Key Renewal. Enter a Key Renewal Timeout period, which instructs the Wireless Router
how often it should change the encryption keys. The default is 3600 seconds.
WEP
This security mode is defined in the original IEEE 802.11. This mode is not
recommended now due to its weak security protection. Users are urged to migrate to
WPA or WPA2.