Mac Filter - ZyXEL Communications G-570U User Manual

6.15 MAC Filter

The MAC filter screen allows you to give exclusive access to up to 32 devices (Allow
Association) or exclude up to 32 devices from accessing the device (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.
The MAC filter works when the device functions as an AP. It allows or denies wireless client
access. The MAC filter does not apply to bridge or repeater functions.
The following applies if you set the device to client mode and want to connect to an AP that
uses a MAC filter. After the device turns on in client mode, it clones the MAC address of the
first packets that it receives from devices connected to the Ethernet port. It uses this MAC
address on the packets that it sends to an AP. All of the packets that the device sends to an AP
will appear to be from the first device that connected to the Ethernet port. If you turn the
device off and on, it again clones the MAC address of the first packets that it receives from
devices connected to the Ethernet port. You may be able to check the association list on the AP
to determine which MAC address the device is currently using.
To change your device's MAC filter settings, click Wireless > MAC Filter. The screen
appears as shown.
Note: Be careful not to list your computer's MAC address and select Deny the
following MAC address to associate when managing the device via a
wireless connection. This would lock you out.
Chapter 6 Wireless Screens
ZyXEL G-570U User's Guide
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