ZyXEL Communications Centralized Network Management Vantage CNM, Руководство пользователя

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Chapter 5 Device Network Settings
Vantage CNM User’s Guide
106
5.4.3 MAC Filter
Every Ethernet device has a unique MAC (Media Access Control) address. The MAC address
is assigned at the factory and consists of six pairs of hexadecimal characters, for example,
00:A0:C5:00:00:02. You need to know the MAC addresses of the devices to configure this
screen. To change your device’s MAC filter settings, select a device and then click
Device
Operation > Device Configuration > Network > Wireless Card > MAC Filter . The screen
appears as shown.
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.
Authentication
Databases Click Local User to go to the Local User Database screen where you can view
and/or edit the list of users and passwords. Click RADIUS to go to the RADIUS
screen where you can configure the Vantage CNM to check an external RADIUS
server.
Table 37 Wireless Card: No Access 802.1x + Static WEP
LABEL DESCRIPTION
Security Select No Access 802.1x + 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 38 Wireless Card: No Access 802.1x + No WEP
LABEL DESCRIPTION
Security Select No Access 802.1x + No WEP from the drop-down list to deny all wireless
stations access to your wired network and block all wireless stations from
communicating with the Vantage CNM.
Table 36 Wireless Card: 802.1x + No WEP (continued)
LABEL DESCRIPTION