ZyXEL Communications vantage cnm ユーザーズマニュアル

 Chapter 5 Device Network Settings

Vantage CNM User’s Guide

The following table describes the fields in these settings.

Table 31   Wireless Card: Static WEP  

Security

Select Static WEP from the drop-down list.

WEP 
Encryption

WEP (Wired Equivalent Privacy) provides data encryption to prevent unauthorized 
wireless stations from accessing data transmitted over the wireless network. 
Select 64-bit WEP or 128-bit WEP to enable data encryption.  

Key 1 to Key 4 If you chose 64-bit WEP in the WEP Encryption field, then enter any 5 characters 

(ASCII string) or 10 hexadecimal characters ("0-9", "A-F") preceded by 0x for each 
key.
If you chose 128-bit WEP in the WEP Encryption field, then enter 13 characters 
(ASCII string) or 26 hexadecimal characters ("0-9", "A-F") preceded by 0x for each 
key.
There are four data encryption keys to secure your data from eavesdropping by 
unauthorized wireless users. The values for the keys must be set up exactly the same 
on the access points as they are on the wireless stations.

Table 32   Wireless Card: WPA-PSK

Security

Select WPA-PSK from the drop-down list.

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.
Type a pre-shared key from 8 to 63 case-sensitive ASCII characters (including 
spaces and symbols). 

ReAuthentication 
Timer (Seconds)

Specify how often wireless stations have to resend user names and passwords in 
order to stay connected. Enter a time interval between 10 and 65535 seconds. 
If wireless station authentication is done using a RADIUS server, the 
reauthentication timer on the RADIUS server has priority. 

Idle Timeout 
(Seconds)

The Vantage CNM automatically disconnects a wireless station from the wireless 
network after a period of inactivity. The wireless station needs to send the 
username and password again before it can use the wireless network again. Some 
wireless clients may prompt users for a username and password; other clients may 
use saved login credentials. In either case, there is usually a short delay while the 
wireless client logs in to the wireless network again.
This value is usually smaller when the wireless network is keeping track of how 
much time each wireless station is connected to the wireless network (for example, 
using an authentication server). If the wireless network is not keeping track of this 
information, you can usually set this value higher to reduce the number of delays 
caused by logging in again. 

WPA Group Key 
Update Timer 
(Seconds)

The WPA Group Key Update Timer is the rate at which the AP (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 an AP and all stations in a WLAN on a 
periodic basis. Setting of the WPA Group Key Update Timer is also supported in 
WPA-PSK mode.