System Configuration
5-58
5
Note: While the access point scans a channel for rogue APs, wireless clients will not be
able to connect to the access point. Therefore, avoid frequent scanning or scans
of a long duration unless there is a reason to believe that more intensive scanning
is required to find a rogue AP.
CLI Commands for Rogue AP Detection – From the global configuration mode,
enter the interface wireless command to access the 802.11g radio interface. From
the wireless interface mode, use the rogue-ap enable command to enable rogue
AP detection. Set the duration and interval times with the rogue-ap duration and
rogue-ap interval commands. If required, start an immediate scan using the
rogue-ap scan command. To view the database of detected access points, use the
show rogue-ap command from the Exec level.
Configuring Wi-Fi Multimedia
Wireless networks offer an equal opportunity for all devices to transmit data from
any type of application. Although this is acceptable for most applications, multimedia
applications (with audio and video) are particularly sensitive to the delay and
throughput variations that result from this “equal opportunity” wireless access
method. For multimedia applications to run well over a wireless network, a Quality of
Service (QoS) mechanism is required to prioritize traffic types and provide an
“enhanced opportunity” wireless access method.
Enterprise AP(config)#interface wireless g 6-87
Enter Wireless configuration commands, one per line.
Enterprise AP(if-wireless g)#rogue-ap enable 6-109
configure either syslog or trap or both to receive the rogue
APs detected.
Enterprise AP(if-wireless g)#rogue-ap duration 200 6-110
Enterprise AP(if-wireless g)#rogue-ap interval 120 6-111
Enterprise AP(if-wireless g)#rogue-ap scan 6-111
Enterprise AP(if-wireless g)#rogueApDetect Completed (Radio G)
: 5 APs detected
rogueAPDetect (Radio G): refreshing ap database now
Enterprise AP(if-wireless g)#exit
Enterprise AP#show rogue-ap 6-112
802.11g Channel : Rogue AP Status
AP Address(BSSID) SSID Channel(MHz) RSSI
=======================================================
00-04-e2-2a-37-23 WLAN1AP 11(2462 MHz) 17
00-04-e2-2a-37-3d ANY 7(2442 MHz) 42
00-04-e2-2a-37-49 WLAN1AP 9(2452 MHz) 42
00-90-d1-08-9d-a7 WLAN1AP 1(2412 MHz) 12
00-30-f1-fb-31-f4 WLAN 6(2437 MHz) 16
Enterprise AP#
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