User Guide Part 2

Wi-Fi Array
276 Configuring the Wi-Fi Array
enables its radios until it detects that the target Array has come back online.
Standby Mode is off by default. Note that you must ensure that the configuration
of the standby Array is correct. This window allows you to enable or disable
Standby Mode and specify the primary Array that is the target of the backup unit.
See also, “Failover Planning” on page 67.
About Blocking Rogue APs
If you classify a rogue AP as blocked (see “Rogue Control List” on page 233), then
the Array will take measures to prevent stations from staying associated to the
rogue. When the monitor radio abg(n)2 is scanning, any time it hears a beacon
from a blocked rogue abg(n)2 sends out a broadcast “deauth” signal using the
rogue's BSSID and source address. This has the effect of tossing off all of a rogue
AP’s clients approximately every 5 to 10 seconds, which is enough to make the
rogue frustratingly unusable.
The Advanced RF Settings window allows you to set up Auto Block parameters
so that unknown APs get the same treatment as explicitly blocked APs. This is
basically a “shoot first and ask questions later” mode. By default, auto blocking is
turned off. Auto blocking provides two parameters for qualifying blocking so that
APs must meet certain criteria before being blocked. This keeps the Array from
blocking every AP that it detects. You may:
z
Set a minimum RSSI value for the AP—for example, if an AP has an RSSI
value of -90, it is probably a harmless AP belonging to a neighbor and not
in your building.
z
Block based on encryption level.