35
CLIENT LIST TIMEOUT
This option sets the timeout for inactive clients to be disassociated and removed from
the associated client list. The interval can be set to 1, 5, 10, 30 or 60 minutes (default is
30 minutes).
UPLINK PORT MAC ADDRESS FILTERING
This feature allows associated wireless clients to communicate only with specific
selected MAC addresses on a sub net. By only allowing clients to communicate with a
few specific servers such as DHCP server, a Gateway, or a local web server, clients are
blocked from communicating with other clients on the local sub net, but are still
allowed (via the gateway) to communicate with severs on the Internet. Note: In most
cases client to client blocking should also be enabled as the Uplink Filter only works
on packets coming into the AP from its Ethernet (uplink) port.
For security reasons it is desirable to block client to client communications for wireless
clients associated with an Access Point (AP). It is also desirable to block client to
client communications between clients associated with different AP’s on the local sub
net. For instance an airport may have several AP’s to service several "hot spots" within
the airport. However the client to client blocking feature of the AP will only block
communications to other clients associated with the same AP. And will not block client
to client of another AP communications. By using the Uplink Filtering function of the
AP communications to all other clients of all other AP’s on the same sub net can be
blocked.
It is important to note that this feature only works if all the AP’s are on the same sub
net. If an AP is located on the far side of the gateway (i.e. on a different sub net) its
clients will NOT be blocked from communicating with clients on the local sub net of
interest.
This feature is accessed on the Filter Page of the user interface. Click on the Uplink
Filter List link and add up to eight MAC addresses that WILL be allowed to
communicate with clients of the AP. Make sure to include the MAC of the local
DHCP server, if it not the same as the gateway as well as and redirect gateways and
other servers that should be allowed to communicate with the AP’s wireless clients.
Make sure to click on the save button on both the Uplink Filter List page as well as the
Filter page to activate the function.
FILTERING BY ETHERNET PROTOCOL TYPE
Use the Ethernet Type Filter table to filter out Ethernet packet frames that match the
Ethernet protocol type. Select Ethernet Type Filter Enable, then set the status of each
Ethernet frame type in the list.
