packets. The higher the value and the more green the bar graph, the clearer the signal. The trend graph provides a visual interpretation of the current signal quality. Differences in signal quality are indicated by the following colors: green (highest quality), yellow (average), and red (lowest quality).

Noise Level: Shows the level of background radio frequency (RF) energy. The lower the value and the more green the bar graph, the less the background noise. The trend graph provides a visual interpretation of the current level of background noise. Differences in background noise are indicated by the following colors: green (low noise), yellow (middle of the range), and red (high noise).

Signal to Noise Ratio: Shows the percentage of beacon packets received versus those expected to be received. The higher the value and the more green the bar graph, the clearer the signal. For example, if the access point sends out ten beacons per second, you would expect the client adapter to receive 50 beacon packets in 5 seconds. If it receives only 40 packets, the percentage of beacons received would be 80 percent.

Overall Link Quality: Shows the ability of the client adapter to communicate with the access point. Possible values are Poor, Fair, Good, or Excellent.

Note: The Signal Quality, Noise Level, Signal to Noise Ratio and Overall Link Quality settings appears only if the Display in percent check box is checked.

Link Speed: Shows a trend graph providing a visual interpretation of the current rate at which your client adapter is transmitting packets. Possible values are 1, 2, 5.5, or 11 Mbps (IEEE 802.11b); 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps (802.11g); 6, 9, 12, 18, 24, 36, 48, or 54 Mbps (IEEE 802.11a).
Display in percent: The default is to display the fields in dB or dBm. If you would rather view the values as a percentage, check the Display in percent check box. The decibels display unit is recommended for a more precise view. The fields vary depending on which method of display you choose.
Trend graph: Provides a graphical representation of activity in the past 10 to 60 seconds. Use the up and down arrows to select the desired number of seconds.

The Cisco Aironet Site Survey Utility works with all Cisco Aironet Wireless Adapters. The AP Scan List tab includes the following information:

Network Name: SSID of the access point.
MAC Address: MAC address of the access point.
RSSI: Received signal strength in dBm.
Data Enc.: Indicates whether the data exchanged with this access point is encrypted. The possible values are Secure (encrypted) and Open (unencrypted).
Type: Indicates whether the band of the access point radio is 802.11a, 802.11b, or IEEE 802.11g.
Ch. (Freq.): Channel number being used and the frequency in megahertz. Possible values depend on the client adapter radio and regulatory domain.
Max Rate: Maximum data rate that is currently available on this access point.
AP Name: Name of the access point (AP).
Load: Access point load.
CCX: Cisco Compatible Extensions version that is supported by the access point. This parameter may be blank if the access point is not broadcasting its CCX version number.
Other Info: Some of the following columns may appear depending on what is transmitted by the access point:
- Ad-Hoc: Identifies the device as another client adapter operating in ad hoc mode.
- Power: Indicates the presence of the cell power limit information element (IE). Broadcasting the cell power limit IE allows access points to limit the transmitting power used by clients.
- QoS: Indicates that QoS is enabled. You can open the AP Detailed Information window to get the QoS configuration.
- RM-Normal: Indicates the presence of the radio management (RM) information. A value of 1 means normal. Other values may be displayed as RM-Status (123) for a status value of 123.
- RM-Source: Indicates the presence of the radio management extensions and includes the MAC address of the RM source.
- SSIDL: Indicates the presence and number of Service Set Identifier List IE (SSIDL IE) and the number of hidden SSIDs configured on that access point. An SSIDL broadcasts information about lists of hidden SSIDs on an access point.
- Pause List Update: Click Pause List Update to halt the current AP scan list. If you click the button again, it resumes updating.
- View AP Details: Launches the AP Detailed Information window for the currently selected row of the table.
- Log Snapshot: Transfers the current contents of the table into the AP Scan List log. The scan log is a text file named SST_APScanLog.txt. It is located in the same directory as the main executable (SST.EXE).
- Count: Indicates the number of rows currently displayed in the table.

If updating is in a paused state, the old data that is currently displayed in the log is added rather than the latest data available.

Content 6.4 Configuring Cisco WLAN Clients 6.4.5 Windows XP WLAN Configuration Figures - show the Windows XP WLAN configuration tool for SSID and security settings. The full functionality of the WLAN adapter is available only via the ADU. Windows can be used to configure the WLAN adapter but has limited functionality. Wireless networks with SSID-broadcasting disabled are not visible or accessible without the ADU. ADU allows you to disable the radio of the WLAN card while Windows can disable the whole WLAN NIC.

Content 6.4 Configuring Cisco WLAN Clients 6.4.6 Cisco Aironet Client Administration Utility The Cisco Wireless Utility Auto Installer (CWUA) enables an administrator to install the Cisco ADU and the driver for the Cisco client adapter across a network, eliminating the need to install and configure the ADU on each wireless client. The auto installer runs in silent batch mode and installs and configures the ADU (thereby configuring the Cisco Aironet client adapter) on a computer running the Windows operating system.The auto installer allows the administrator to selectively install and configure parameters for the following:

Drive and directory where the ADU will be stored on the computer
Folder where the ADU will be installed on the computer
Drive and directory where client card firmware and drivers will be stored on the computer
Profiles that will be installed on the computer with the software

Each profile allows the administrator to selectively configure the following parameters on the ADU:

Radio settings
Wireless network settings
Network security settings (SSID, Wired Equivalent Privacy [WEP] keys, network security)

The auto installer can also be used with its own encryption utility to encrypt the files before they are sent across the network to ensure that network security is not compromised while performing auto installs. Figure shows the ACAU configuration of the general settings used by the ADU.

Content 6.4 Configuring Cisco WLAN Clients 6.4.7 Cisco WLAN IP Phone The Cisco Wireless IP Phone solution enables enterprise users to globally answer business-critical calls anywhere on a corporate campus. The Cisco Wireless IP Phone is equally adaptable for all mobile professionals, from managers on the move or in an office environment to associates working in the warehouse, on the sales floor, or in the call center. The solution allows enterprises the flexibility to add coverage and capacity as needed to meet user needs. Additionally, the Cisco wireless IP communications solution operates seamlessly with existing Cisco wired IP communications solutions on a single intelligent network. When combined with the other Cisco