Table Of Contents
Release Notes for Cisco Aironet 340, 350, and CB20A Client Adapter Firmware 5.30.17
This document contains the following sections:
This document describes system requirements, important notes, new and changed information, upgrade procedures, and caveats for Cisco Aironet client adapter firmware version 5.30.17.
You need the following items in order to install client adapter firmware version 5.30.17:
•A computer running the Windows 98, 98 SE, NT, 2000, Me, or XP operating system
•One of the following Cisco Aironet client adapters:
–340 or 350 series PC, LM, or PCI card
–350 series mini PCI card
–CB20A PC-Cardbus card
•Cisco Aironet 340, 350, and CB20A Install Wizard version 1.2 for Windows, which includes PC, LM, and PCI card driver version 8.4; mini PCI and PC-Cardbus card driver version 3.7; ACU version 6.2; ACM version 2.2; LEAP security module version 6.2; PEAP security module version 1.01; and EAP-SIM security module version 1.0
•Access points to which your client adapter may attempt to authenticate must use the following firmware versions or greater: 12.00T (340, 350, and 1200 series access points) or Cisco IOS Release 12.2(4)JA (1100 series access points).
Note To use WPA or fast roaming, access points must use Cisco IOS Release 12.2(11)JA or greater. To use radio management (RM), access points must use Cisco IOS Release 12.2(13)JA or greater.
Not Supported on Linux and Mac OS Operating Systems
Client adapter firmware version 5.30.17 is not supported for use on Linux and Mac OS operating systems.
WPA Migration Mode Not Supported by Clients
Although client adapter firmware version 5.30.17 supports Wi-Fi Protected Access (WPA) authenticated key management for 350 series and CB20A cards on computers running Windows 2000 or XP (see the "WPA Support" section for more information), it does not include support for WPA migration mode.
In order to use Cisco Aironet client adapters with WPA, the access point must be configured only for the WPA TKIP cipher. The use of the following migration-mode-supporting ciphers is not supported by Cisco WPA clients:
• TKIP + WEP128
• TKIP + WEP40
To support the coexistence of Cisco Aironet WPA clients and non-WPA clients, it is necessary to configure separate VLANs and encryption policies on the access point. Specifically, a VLAN with TKIP encryption mode and a VLAN with a compatible WEP encryption mode specified would be required.
Note Refer to the documentation for your access point for specific instructions.
Cisco Aironet Software Requires Completion of Encryption Authorization Form
In order to access Cisco Aironet software from the Software Center on Cisco.com, you must fill out a form to receive authorization to download encrypted software. Registered Cisco.com users are required to fill out the form only once, but public users must do so once each session, each time software is downloaded. A form is automatically created for public users. The form for registered Cisco.com users is at the following URL:
New and Changed Information
This section describes new and changed information for Cisco Aironet client adapter firmware version 5.30.17.
Wi-Fi Protected Access (WPA) is a standards-based, interoperable security enhancement that greatly increases the level of data protection and access control for existing and future wireless LAN systems. It is derived from and will be compatible with the upcoming IEEE 802.11i standard. WPA leverages Temporal Key Integrity Protocol (TKIP) and Michael message integrity check (MIC) for data protection and 802.1X for authenticated key management. WPA is supported by the Cisco Wireless Security Suite.
WPA supports two mutually exclusive key management types: WPA and WPA-Pre-shared key (WPA-PSK). Using WPA key management, clients and the authentication server authenticate to each other using an EAP authentication method, and the client and server generate a pairwise master key (PMK). The server generates the PMK dynamically and passes it to the access point. Using WPA-PSK key management, however, you configure a pre-shared key on both the client and the access point, and that pre-shared key is used as the PMK.
Only 350 series and CB20A cards that are installed on computers running Windows 2000 or XP and running LEAP or host-based EAP authentication can be used with WPA. Support for WPA is available in firmware version 5.30.17 or greater and the other software components included in Install Wizard version 1.2 or greater. However, if you want to use host-based EAP authentication with WPA, you must install additional software with WPA support. The following WPA software is recommended for use with Cisco Aironet client adapters:
•Funk Odyssey Client supplicant version 2.2 (for Windows 2000)
•Windows XP Service Pack 1 and Microsoft support patch 815485 (for Windows XP)
Note Meetinghouse AEGIS Client supplicant version 2.1 is also supported for use with Windows 2000 and XP; however, it was not tested with this client adapter software release.
Note Refer to Chapter 5 of the 340, 350, and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for Windows (part number OL-1394-07) for instructions on enabling WPA.
Note WPA must also be enabled on the access point. Access points must use Cisco IOS Release 12.2(11)JA or greater to enable WPA. Refer to the documentation for your access point for instructions on enabling this feature.
Radio Management Support
A new parameter entitled Enable Radio Management Support has been added to the Advanced (Infrastructure) Parameters screen in ACU. Checking this check box enables the access point to which the client adapter is associated to control the use of radio management (RM), provided RM is enabled on the access point.
RM is a system-wide feature that involves multiple infrastructure nodes and is a feature of the Cisco Structured Wireless-Aware Network (SWAN). The RM feature on the access point acts on radio measurement requests from other network devices to instruct the access point and its associated clients to perform required radio measurements and then report them.
Cisco SWAN uses RM data to provide:
•Rogue access point detection and location
•Interference detection to isolate and locate network interference
•Assisted site surveys for simplified WLAN deployment processes
•Air/radio frequency (RF) scanning and monitoring
•Streamlined WLAN management and operations support
This parameter is available in ACU version 6.2 or greater and only for 350 series client adapters using firmware version 5.30.17 or greater.
Note Access points must use Cisco IOS Release 12.2(13)JA or greater to enable RM. Refer to the documentation for your access point for instructions on enabling this feature.
Ability to Disable Fast Roaming (CCKM)
In the previous client adapter release (Install Wizard version 1.1 and client adapter firmware version 5.20.17), fast roaming (CCKM) was enabled automatically by the client adapter firmware. Now, however, you can enable or disable fast roaming in ACU by checking or unchecking the Allow Fast Roaming (CCKM) check box on the Network Security screen.
Upgrading to a New Firmware Version
Caution To minimize the risk of a power failure during the firmware flashing process, which could render your client adapter inoperable, Cisco recommends that your computer be plugged into AC power or have a fully charged battery at the start of flashing. If a power failure does occur, follow the instructions in the "Obtaining Technical Assistance" section to contact TAC for assistance.
This section describes how to upgrade to client adapter firmware version 5.30.17 on a computer running the Windows 98, 98 SE, NT, 2000, Me, or XP operating system.
Finding the Firmware Version
To find the firmware version that your client adapter is currently using, open ACU and click the Status icon. The Firmware Version field on the Status screen shows the firmware version.
Upgrading the Firmware
Follow the steps below to upgrade your client adapter's firmware to version 5.30.17.
Note When you upgrade your client adapter's firmware using ACU, the Automatically Load New Firmware When NDIS Driver Is Updated parameter on the Aironet Client Utility Preferences screen becomes disabled (or unchecked) automatically to prevent the newly loaded firmware from being overwritten by the driver. If you ever want to enable this parameter, you must recheck the check box.
Step 1 Use the computer's web browser to access the following URL:
Step 2 Select Option #2: Aironet Wireless Software Display Tables.
Note You can download software from the Software Selector tool instead of the display tables. To do so, select Option #1: Aironet Wireless Software Selector, follow the instructions on the screen, and go to Step 7.
Step 3 Select Cisco Aironet Wireless LAN Client Adapters.
Step 4 Under Individual Files, find the client adapter firmware.
Step 5 Click the link that corresponds to your client adapter's model number (such as 340 or 350 series).
Step 6 Select the latest firmware file for your specific client adapter type (such as CB or MPI).
Note The firmware for PC, LM, and PCI cards is labeled PCMCIA-LMC-PCI, the firmware for mini PCI cards is labeled mini PCI or MPI, and the firmware for PC-Cardbus cards is labeled CB.
Step 7 Read and accept the terms and conditions of the Software License Agreement.
Step 8 Select the firmware file again to download it.
Step 9 Save the file to a floppy disk or to your computer's hard drive.
Step 10 Find the file using Windows Explorer, double-click it, and extract the image file to a folder.
Note To extract the file, click Browse on the WinZip Self-Extractor screen, select the folder in which you want the file to be placed, and click OK and Unzip. After the file is extracted, click OK to close the screen.
Step 11 Make sure the client adapter is installed in your computer and is operational.
Step 12 Open ACU and click the Load Firmware icon. The Load New Firmware screen appears (see Figure 1).
Figure 1 Load New Firmware Screen
Step 13 Find the location of the new firmware in the Look in box.
Step 14 Click the firmware image file (*.img) so that it appears in the File name box at the bottom of the screen.
Step 15 Click the Open button. A progress bar appears while the selected image is loaded into the client adapter's Flash memory.
Step 16 Click OK when the "Firmware Upgrade Complete!" message appears. The OK button cannot be selected until the process is complete or an error occurs.
The following caveats have not been resolved in client adapter firmware version 5.30.17.
•CSCeb85992—Client scanning problems with LEAP
Clients using LEAP sometimes experience scanning problems, such as sending probe requests in only the current channel rather than scanning through all channels.
•CSCec33568—Full SSID may not appear on ACU and ACM Status screens
Some characters may be dropped from the end of the SSID on the ACU Status screen and the ACM Connection Status screen. This issue has no impact on client operation or performance.
Getting Bug Information on Cisco.com
If you are a Cisco registered user, you can use the Cisco TAC Software Bug Toolkit, which consists of three tools (Bug Navigator, Bug Watcher, and Search by Bug ID Number) that help you to identify existing bugs (or caveats) in Cisco software products.
Access the TAC Software Bug Toolkit at the following URL:
For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at
Select Hardware Support > Wireless Devices. Then select your product and Troubleshooting to find information on the problem you are experiencing.
For more information about Cisco Aironet 340, 350, and CB20A client adapters, refer to the following documents:
•Cisco Aironet 340, 350, and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for Windows, OL-1394-07
•Release Notes for Cisco Aironet 340, 350, and CB20A Client Adapter Install Wizard 1.2 for Windows, OL-4532-01
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