19216811.liveChapter 18 Wireless LAN
P-663HN-51 User’s Guide
151
WPA2
Preauthentication
This field is available only with WPA2 network authentication.
Turn on pre-authentication to enable fast roaming by allowing the
wireless client (already connected to an AP) to perform IEEE 802.1x
authentication with another AP before connecting to it.
Network Re-auth
Interval
This field is available only with WPA2 network authentication.
Specify how often wireless stations have to resend usernames and
passwords in order to stay connected. Enter a time interval between 0
and 4294967295 seconds. 0 disables the re-authentication.
Note: The re-authentication timer on the RADIUS server has
priority over your setting here.
WPA Group
Rekey Interval
This field is available only with WPA or WPA2 network authentication.
The
Group Key Update Timer
is the rate at which the AP (if using
WPA(2)-PSK
key management) or
RADIUS
server (if using WPA(2)
key management) sends a new group key out to all clients. The re-
keying process is the WPA(2) equivalent of automatically changing the
WEP key for an AP and all stations in a WLAN on a periodic basis.
Setting of the
Group Key Update Timer
is also supported in
WPA(2)-PSK
mode. 0 disables the re-keying.
RADIUS Server
IP Address
The RADIUS fields are required with 802.1X and WPA/WPA2 network
authentication.
Enter the IP address of the external authentication server in dotted
decimal notation.
RADIUS Port
Enter the port number of the external authentication server. The
default port number is
1812
.
You need not change this value unless your network administrator
instructs you to do so with additional information.
RADIUS Key
Enter a password (up to 31 alphanumeric characters) as the key to be
shared between the external authentication server and the ZyXEL
Device.
The key must be the same on the external authentication server and
your ZyXEL Device. The key is not sent over the network.
WPA Encryption
Select the encryption type (TKIP, AES, or both) for data encryption.
Select
TKIP
if your wireless clients can all use TKIP.
Select
AES
if your wireless clients can all use AES.
Select
TKIP + AES
to allow the wireless clients to use either TKIP or
AES.
WEP Encryption
WEP encryption is optional with
Open
network authentication. It is
required with
Shared
or
802.1X
network authentication.
WEP (Wired Equivalent Privacy) provides data encryption to prevent
unauthorized wireless stations from accessing data transmitted over
the wireless network.
Encryption
Strength
If you are using WEP encryption, select
64-bit
or
128-bit
to set the
length of the encryption key.
Table 54
Wireless > Security
LABEL
DESCRIPTION