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802.11n Access Points - Software Management Guide 77
Click OK and COMMIT, to save the configured parameters.
Add New Entries to the Protocol Filter Table
To add user-defined protocols to the Protocol Filter Table, click Add in the Protocol Filters screen. The Protocol Filter Add
Row screen appears.
Figure 5-38 Protocol Filter Add Row
Configure all the parameters and click Add.
: The maximum number of Protocol Filters that can be added are 64.
5.8.2 Static MAC Address Filters
The ‘Static MAC Address Filter’ optimizes the performance of a wireless (and wired) network. With this feature configured,
the AP device can block traffic between wired devices and wireless devices based on the MAC address.
For example, you can set up a static MAC filter to prevent wireless clients from communicating with a specific server on the
ethernet network. You can also use this filter to block unnecessary multicast packets from being forwarded to the wireless
network.
Each MAC address or Mask comprises 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 device will look for
when examining packets. The AP device uses Boolean logic to perform an “AND” operation between the MAC address and
the Mask at the bit level. 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.
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 device 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 device will only look for the specific MAC address (in this case, 00:20:A6:12:54:C3).
You can configure the ‘Static MAC address Filter’ parameters depending on the following scenarios:
Entry Status Specifies entry status of the protocol. By default, it is disabled. To configure, select either
Enable/Disable/Delete from the drop down menu.
– Enable: Enables the filter status on a protocol.
– Disable: Disables the filter status on a protocol.
– Delete: Deletes a protocol entry from the Protocol Filter Table.
: System-defined default protocols entries cannot be deleted.
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