Example - Avaya AP-3 User Manual

Performing Advanced Configuration
Wireless MAC Address
●
Wireless Mask
●
Comment: This field is optional.
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Status
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Each MAC Address or Mask is comprised of 12 hexadecimal digits (0-9, A-F) that correspond to
a 48-bit identifier. (Each hexadecimal digit represents 4 bits (0 or 1).)
Taken together, a MAC Address/Mask pair specifies an address or a range of MAC addresses
that the AP will look for when examining packets. The AP uses Boolean logic to perform an
"AND" operation between the MAC Address and the Mask at the bit level. However, for most
users, you do not need to think in terms of bits. It should be sufficient to create a filter using only
the hexadecimal digits 0 and F in the Mask (where 0 is any value and F is the value specified in
the MAC address). A Mask of 00:00:00:00:00:00 corresponds to all MAC addresses, and a
Mask of FF:FF:FF:FF:FF:FF applies only to the specified MAC Address.

Example

For example, if the MAC Address is 00:20:A6:12:54:C3 and the Mask is FF:FF:FF:00:00:00, the
AP will examine the source and destination addresses of each packet looking for any MAC
address starting with 00:20:A6. If the Mask is FF:FF:FF:FF:FF:FF, the AP will only look for the
specific MAC address (in this case, 00:20:A6:12:54:C3).
When creating a filter, you can configure the Wired parameters only, the Wireless parameters
only, or both sets of parameters. Which parameters to configure depends upon the traffic that
you want block. See
Table 25: Static MAC Filter Parameters
To block all traffic...
from a specific wired MAC address from
being forwarded to the wireless network
from a specific wireless MAC address
from being forwarded to the wired
network
between a specific wired MAC address
and a specific wireless MAC address
112 Wireless AP-3 User's Guide
Table 25.
Configure...
only the Wired MAC Address and Wired Mask
(leave the Wireless MAC Address and Wireless
Mask set to all zeros).
only the Wireless MAC address and Wireless
Mask (leave the Wired MAC Address and Wired
Mask set to all zeros).
all four parameters.