Table 5-1 Client Adapter Configuration Parameters
Parameter
|
Description
|
SSID
|
The service set identifier (SSID) identifies the specific wireless network that you want to access.
Range: You can key in up to 32 characters (case sensitive)
Default: A blank field
Note  If you leave this parameter blank, your client adapter can associate to any access point on the network that is configured to allow broadcast SSIDs (see the AP Radio Hardware page in the access point management system). If the access point with which the client adapter is to communicate is not configured to allow broadcast SSIDs, the value of this parameter must match the SSID of the access point. Otherwise, the client adapter cannot access the network.
|
Client Name
|
A logical name for your Windows CE device. It allows an administrator to determine which devices are connected to the access point without having to memorize every MAC address. This name is included in the access point's list of connected devices.
Range: You can key in up to 16 characters
Default: A blank field
Note Each computer on the network should have a unique client name.
|
Infrastructure Mode
|
Specifies the type of network in which your client adapter is installed.
Options: Yes or No
Default: Yes
|
Infrastructure Mode
|
Description
|
Yes
|
Indicates that your wireless network is connected to a wired Ethernet network through an access point.
|
No
|
Indicates that your wireless network consists of a few wireless devices that are not connected to a wired Ethernet network through an access point (referred to as ad hoc mode).
|
Power Save Mode
|
Sets your client adapter to its optimum power-consumption setting.
Options: CAM, Fast PSP, or Max PSP
Default: CAM (Constantly Awake Mode)
|
Power Save Mode
|
Description
|
CAM (Constantly Awake Mode)
|
Keeps the client adapter powered up continuously so there is little lag in message response time.
Consumes the most power but offers the highest throughput. Is recommended for desktop computers and devices that use AC power.
|
Fast PSP (Power Save Mode)
|
Switches between PSP mode and CAM mode, depending on network traffic. This mode switches to CAM when retrieving a large number of packets and switches back to PSP after the packets have been retrieved.
Is recommended when power consumption is a concern but you need greater throughput than that allowed by Max PSP.
|
Max PSP (Max Power Savings)
|
Causes the access point to buffer incoming messages for the client adapter, which wakes up periodically and polls the access point to see if any buffered messages are waiting for it. The adapter can request each message and then go back to sleep.
Conserves the most power but offers the lowest throughput. Is recommended for devices for which power consumption is the ultimate concern (such as small battery-powered devices).
|
WEP
|
Enables or disables WEP for your client adapter.
Options: Enabled or Disabled
Default: Disabled
This parameter can be used in two ways:
•If you set a WEP key using CEM, you must also select Enabled for this parameter to enable WEP for your client adapter.
•If you enabled LEAP for your client adapter, this parameter is changed automatically to Enabled, and the RADIUS server assigns a dynamic, session-based WEP key to the adapter.
|
Authentication Type
|
Defines how your client adapter will attempt to authenticate to an access point.
Options: Open or Shared Key
Default: Open
|
Authentication
|
Description
|
Open Authentication
|
Allows your client adapter, regardless of its WEP settings, to associate with an access point. If LEAP is enabled on your client adapter, Open Authentication is the only available option.
|
Shared Key Authentication
|
Allows your client adapter to associate only with access points that have the same WEP key. This option is available only if the client adapter has been assigned a static WEP key in CEM, static WEP is enabled, and LEAP is not enabled.
The access point sends a known unencrypted "challenge packet" to the client adapter, which encrypts the packet and sends it back to the access point.
The access point attempts to decrypt
the encrypted packet and sends an authentication response packet indicating the success or failure of the decryption back to the client adapter.
|
Note Cisco recommends that shared key authentication not be used because it presents a security risk.
|
LEAP
|
Enables or disables LEAP authentication for your client adapter.
Options: Enabled or Disabled
Default: Disabled
|
LEAP
|
Description
|
Enabled
|
Enables LEAP after you enter a username and password in WLM.
Note This parameter must be enabled before you set a LEAP username and password in WLM.
|
Disabled
|
Disables LEAP. LEAP can be disabled as desired.
|
Mixed Mode
|
Indicates if the client adapter can associate to an access point that allows both WEP and non-WEP associations.
•If the access point with which the client adapter is to associate
has WEP set to Optional, you must enable Mixed Mode on the adapter (regardless of whether WEP is enabled on the adapter). Otherwise, the client adapter cannot establish a connection with the access point.
•If the access point with which the client adapter is to associate does not have WEP set to Optional, Mixed Mode should be set to Disabled on the adapter.
Options: Enabled or Disabled
Default: Disabled
Note For security reasons, Cisco recommends that WEP-enabled and WEP-disabled clients not be allowed in the same cell because broadcast packets will be sent unencrypted, even to clients running WEP.
|
World Mode
|
Enables the client adapter to adopt the maximum transmit power level and the frequency range of the access point to which it is associated, provided the access point is also configured for world mode. This parameter is available only in infrastructure mode and is designed for users who travel between countries and want their client adapters to associate to access points in different regulatory domains.
Options: Enabled or Disabled
Default: Disabled
Note When World Mode is enabled, the client adapter is limited to the maximum transmit power level allowed by the country of operation's regulatory agency.
|
Data Rates
|
Specifies the rate at which your client adapter should transmit or receive packets to or from access points (in infrastructure mode) or other clients (in ad hoc mode).
Auto is recommended for infrastructure mode; setting a specific data rate is recommended for ad hoc mode.
Options: Auto, 1 Mb Only, 2 Mb Only, 5.5 Mb Only, or 11 Mb Only
Default: Auto
|
|
|
Data Rate
|
Description
|
Auto
|
Uses the 11-Mbps data rate when possible but drops to lower rates when necessary
|
1 Mb Only
|
Offers the greatest range but the lowest throughput
|
2 Mb Only
|
Offers less range but greater throughput than the 1 Mbps Only option
|
5.5 Mb Only
|
Offers less range but greater throughput than the 2 Mbps Only option
|
11 Mb Only
|
Offers the greatest throughput but the lowest range
|
Note Your client adapter's data rate must be set to Auto or must match the data rate of the access point (in infrastructure mode) or the other clients (in ad hoc mode) with which it is to communicate. Otherwise, your client adapter may not be able to associate to them.
Note If ACU is running but a client adapter is not currently inserted in the Windows CE device, the data rate options are based on the last adapter that was running in the system.
|
Transmit Power
|
Defines the power level at which your client adapter transmits. This value must not be higher than that allowed by your country's regulatory agency (FCC in the U.S., DOC in Canada, ETSI in Europe, MKK in Japan, etc.).
Options: Dependent on the power table programmed into the client adapter; see the table below
Default: Max (the maximum level programmed into the client adapter and allowed by your country's regulatory agency)
|
Power Levels
|
Client Adapter Type
|
Max, 100 mW, 50 mW,
30 mW, 20 mW, 5 mW, or 1 mW
|
350 series PC and LM cards
|
Max, 30 mW, or 1 mW
|
340 series PC cards
|
Max, 30 mW, 15 mW,
5 mW, or 1 mW
|
340 series LM cards
|
Note Reducing the transmit power level conserves battery power but decreases radio range.
Note If the client adapter is running, ACU queries the adapter and displays the settings programmed into the adapter. If the client adapter is not running, ACU displays power level options based on the last known radio type.
Note When World Mode is enabled, the client adapter is limited to the maximum transmit power level allowed by the country of operation's regulatory agency.
Note If you are using an older version of a 340 or 350 series client adapter, your power level options may be different than those listed here.
|
