Configuring Mac Filter - ZyXEL Communications ZyWALL 5 User Manual

LABEL
ESSID (Extended Service Set IDentity) The ESSID identifies the Service Set with which a wireless
station is associated. Wireless stations associating to the access point (AP) must have the
same ESSID. Enter a descriptive name (up to 32 printable 7-bit ASCII characters) for the
wireless LAN.
Hide ESSID Select to hide the ESSID in the outgoing beacon frame so a station cannot obtain the ESSID
through passive scanning.
Channel ID This allows you to set the operating frequency/channel depending on your particular region.
Select a channel from the drop-down list box.
RTS/CTS (Request To Send) The threshold (number of bytes) for enabling RTS/CTS handshake. Data
Threshold with its frame size larger than this value will perform the RTS/CTS handshake. Setting this
attribute to be larger than the maximum MSDU (MAC service data unit) size turns off the
RTS/CTS handshake. Setting this attribute to zero turns on the RTS/CTS handshake. Enter
a value between 0 and 2432.
Fragmentation The threshold (number of bytes) for the fragmentation boundary for directed messages. It is
Threshold the maximum data fragment size that can be sent. Enter a value between 256 and 2432.
WEP WEP (Wired Equivalent Privacy) provides data encryption to prevent unauthorized wireless
Encryption stations from accessing data transmitted over the wireless network.
Select Disable to allow wireless stations to communicate with the access points without any
data encryption.
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.
Click Apply to save your changes back to the ZyWALL.
Apply
Reset Click Reset to begin configuring this screen afresh.
6.6

Configuring MAC Filter

The MAC filter screen allows you to configure the ZyWALL to give exclusive access to specific
devices (Allow Association) or exclude specific devices from accessing the ZyWALL (Deny
Association). 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.
Wireless LAN and Authentication Server
Table 6-1 Wireless
DESCRIPTION
If you are configuring the ZyWALL from a
computer connected to the wireless LAN and you
change the ZyWALL's ESSID or WEP settings, you
will lose your wireless connection when you press
Apply to confirm. You must then change the
wireless settings of your computer to match the
ZyWALL's new settings.
ZyWALL 5 Internet Security Appliance
6-5