User Manual Part 6

Administration Tab
SpectraGuard® Enterprise User Guide
306
Channel Frequency Table
Channels to Monitor: Specifies the 802.11a and b/g channels to be used by sensors to monitor WLAN traffic.
Select the check box Select All Standard Channels to select a superset of all the channels. For 802.11a, the
standard sets of channels are 184 216 and 34 - 165. By default, this check box is selected.
Select the check box Select All Allowed Channels to select all the allowed channels in the selected operating
region. By default, this checkbox is selected.
Select the check box Additionally, select intermediate channels (works only with 802.11 a/b/g sensor platforms)
to select the channels between the allowed channels that are non-allowed in the selected operating region. Selecting
the option helps the system detect devices operating on illegal channels. By default, this checkbox is deselected.
Turbo Mode: Certain Atheros Chipset based devices use wider frequency bands on certain channels in 802.11 b/g
and 802.11a band of channels. The system is capable of monitoring channels that support Turbo Mode of operation
and detecting any unauthorized communication on these channels. You can select specific or all channels to monitor
wireless activity on Turbo channels. There are ten Turbo channels in a-mode. These channels are 40, 42, 48, 50, 56, 58,
152, 153, 160, and 161. There is only one Turbo channel in b/g-mode that is,6.
Channels to Defend: Specifies the channels to be used by sensors to defend WLAN traffic to protect your
network against various WLAN threats.
Note: It is mandatory that channels selected for defending be selected for scanning. If a channel is selected for
defending and is not already selected for scanning, the system automatically selects that channel for scanning as