Configuring wireless channels and encryption
When a wireless adapter is selected as the capture or monitor adapter, you can specify the channel settings used by the adapter to listen for traffic on your 802.11 WLAN. You can choose to listen for traffic occurring on a specific channel, or scan a range of channels. Additionally, if WEP, WPA (using a pre-shared key), or WPA2 (using a pre-shared key) encryption is enabled on your network, you can define or select key sets used to decrypt the WEP, WPA, or WPA2 encryption.
To configure wireless channels and encryption:
1. Open the Capture Options dialog.
NOTE: For a Capture Engine, you will need to open the 802.11 tab of the Adapter Options dialog. To open the Adapter Options dialog, click the Adapters tab in the Capture Engines window and then click Options for the selected wireless adapter.
2. Select the 802.11 options (or 802.11 tab).
3. Select the option for selecting channels:
• Number: Select this option to specify a specific channel, and then select the channel from the list.
• Scan: Select this option to scan for traffic on multiple channels. You will need to click Edit Scanning Options to select the channels. See Edit scanning options below.
4. If WEP, WPA, or WPA2 encryption is enabled on your network, select the key set used to decrypt the WEP, WPA, or WPA2 encryption. See Edit key sets to define or edit key sets.