Release Notes for Cisco Wireless LAN Controllers and Lightweight Access Points for Release 7.0.235.3
Cisco Unified Wireless Network Solution Components
Controller Web Browser Requirements
Special Rules for Upgrading to Controller Software Release 7.0.235.3
Software Release Support for Access Points
Interoperability With Other Clients in 7.0.235.3
Special Rules for Upgrading to Controller Software 7.0.235.3 in Mesh Networks
Upgrading to a New Software Release
Upgrading the Controller Software (GUI)
Installing Field Upgrade Software
Information About Field Upgrade Software
Downloading Field Upgrade Software
Installing Field Upgrade Software
Verifying the Upgraded Components
FCC Safety Compliance Statement
Using the Controller USB Console Port
Important Notes for Controllers and Nonmesh Access Points
WPlus License Features Included in Base License
Additive Licenses Available for Controllers
One-Time Password (OTP) Support
RADIUS Called-station-id and Calling-station-id Attributes
Using Access Points in Sniffer Mode
Inter-Release Controller Mobility
802.11g Controller and 802.11b Clients
CAPWAP Problems with Firewalls and ACLs
Messages Appearing Upon Controller Bootup
Crash Files for Cisco Aironet 1250 Series Access Points
Configuration File Stored in XML
802.11a Channels 120, 124, and 128 Disabled
Impact of External Antenna Gain on Transmit Power
Supporting Oversized Access Point Images
MAC Filtering for WGB Wired Clients
CKIP Not Supported with Dynamic WEP
Setting the Date and Time on the Controller
Synchronizing the Controller and Location Appliance
FCC DFS Support on 1130 Series Access Points
Inaccurate Transmit Power Display
Setting the Retransmit Timeout Value for TACACS+ Servers
Configuring Prestandard Power Setting of an Access Point
Controller Functions that Require a Reboot
Rate-Limiting on the Controller
Pings Supported to the Management Interface of the Controller
Pinging from a Network Device to a Controller Dynamic Interface
4400 Series Controllers Do Not Forward Subnet Broadcasts through the Guest Tunnel
Connecting 1100 and 1300 Series Access Points
Preventing Clients from Accessing the Management Network on a Controller
Voice Wireless LAN Configuration
Enabling/Disabling Band Selection and Client Load Balancing
Changing the IOS LWAPP Access Point Password
RADIUS Servers and the Management VLAN
TACACS+ Servers and the Management VLAN
Management Usernames and Local Netuser Names
Home Page Retains Web Authentication Login with IE 5.x
Changing the Default Values of SNMP Community Strings
Changing the Default Values for SNMP v3 Users
DirectStream Feature Is Not Supported With WGB
Features Not Supported on Cisco 2100 Series Controllers
Features Not Supported on Cisco 2500 Series Controllers
Features Not Supported on Cisco 5500 Series Controllers
Features Not Supported on Cisco Flex 7500 Series Controllers
Some Clients See Only 64 Access Point MAC Addresses (BSSIDs) at a Time
Upgrading External Web Authentication
Switch Port and Controller Port
Unsupported mac-address Command for Unified and Autonomous Access Points
Fast Roaming and Authentication/Key Management for CCKM Clients
Errors When Using AAA with an Active RADIUS Fallback
Roaming Clients When Access Points are in Standalone Mode
Using Lightweight Access Points with NAT
Important Notes for Controllers and Mesh Access Points
Features Not Supported on Mesh Networks
Obtaining Documentation and Submitting a Service Request
First Published: August 18, 2014
These release notes describe information about 7.0.235.3 release for the following hardware platforms:
Note Unless otherwise noted, all of the Cisco Wireless LAN controllers are referred to as controllers, and all of the Cisco lightweight access points are referred to as access points.
These release notes contain the following sections:
The following components are part of the Cisco UWN Solution and are compatible in this release:
Note Client and tag licenses are required in order to retrieve contextual (such as location) information within the Context-Aware Software. For more information, see the Release Notes for Cisco 3350 Mobility Services Engine for Software Release 7.0.116.0.
Note The 7.0.235.3 release does not support the NM-AIR-WLC6 platform. The NME-AIR-WLC platform is supported.
Support for the NM-AIR-WLC6 platform ended with the 4.2.209.0 release.
Note Controller software release 5.0.148.0 or later is not compatible with Cisco Aironet 1010, 1020, 1030, and 1510 Series Access Points.
The AP801 is an integrated access point on the Cisco 800 Series Integrated Services Routers (ISRs). For more information on the SKUs for the access points and the ISRs, refer to the following data sheets:
– http://www.cisco.com/c/en/us/products/collateral/routers/800-series-routers/data_sheet_c78_461543.html
– http://www.cisco.com/c/en/us/products/collateral/routers/887-integrated-services-router-isr/data_sheet_c78_459542.html
– http://www.cisco.com/c/en/us/products/collateral/routers/800-series-routers/data_sheet_c78-613481.html
– http://www.cisco.com/c/en/us/products/collateral/routers/880-3g-integrated-services-router-isr/data_sheet_c78_498096.html
– http://www.cisco.com/c/en/us/products/collateral/routers/880g-integrated-services-router-isr/data_sheet_c78-682548.html
– http://www.cisco.com/c/en/us/products/collateral/routers/800-series-routers/data_sheet_c78-519930.html
Note The AP802 is an integrated access point on the Next Generation Cisco 880 Series Integrated Services Routers (ISRs).
Note Only Cisco Aironet 1200 Series Access Points that contain 802.11g (AIR-MP21G) or second-generation 802.11a radios (AIR-RM21A or AIR-RM22A) are supported for use with controller software releases. The AIR-RM20A radio, which was included in early 1200 series access point models, is not supported. To see the type of radio module installed in your access point, enter this command on the access point: show controller dot11radio n, where n is the number of the radio (0 or 1).
We recommend that you access the controller GUI using Microsoft Internet Explorer 6.0 SP1 (or later) or Mozilla Firefox 2.0.0.11 (or later).
Cisco controllers support standard SNMP Management Information Base (MIB) files. MIBs can be downloaded from the Cisco Software Center at https://software.cisco.com/download/navigator.html
There are no new features or enhancements in this release. This release addresses a Microsoft Windows 8 Client interoperability with Cisco Wireless Infrastructure (CSCua29504). For more information, see the Resolved Caveats section.
The software is factory installed on your controller and automatically downloaded to the access points after a release upgrade and whenever an access point joins a controller. We recommend that you install the latest software version available for maximum operational benefit.
The Cisco Wireless LAN Controller Network Module is also supported on Cisco 1941/2900/3900/3900E Series Integrated Services Routers Generation 2 running Cisco IOS Release 15.1(3)T or later universal image.
Note Use Cisco IOS Release 15.1(3)T.01 if you use the Cisco 2900 Series Integrated Services Routers Generation 2 with packet voice/data module (PVDM).
To find the software release running on your controller, click Monitor and look at the Software Version field under Controller Summary on the controller GUI, or enter show sysinfo on the controller CLI.
Before upgrading your controller to software release 7.0.235.3, you must comply with the following rules:
– Controller software release 7.0.235.3 is larger than 32 MB; therefore, you must ensure that your TFTP server supports files that are larger than 32 MB. Some TFTP servers that support files of this size are tftpd and the TFTP server within the WCS. If you attempt to download the 7.0.235.3 controller software and your TFTP server does not support files of this size, the following error message appears: “TFTP failure while storing in flash.”
– If you are upgrading through the service port, the TFTP or FTP server must be on the same subnet as the service port because the service port is not routable; or you must create static routes on the controller.
– If you are upgrading through the distribution system network port, the TFTP or FTP server can be on the same or a different subnet because the distribution system port is routable.
– A third-party TFTP or FTP server cannot run on the same computer as WCS because the WCS built-in TFTP or FTP server and the third-party TFTP or FTP server require the same communication port.
.aes
files are independent from the controller software files. You can run any controller software file with any ER.aes file. However, installing the latest boot software file (7.0.116.0 ER.aes) ensures that the boot software modifications in all of the previous and current boot software ER.aes files are installed.When an OfficeExtend Access Point that is configured with the Least Latency Join option and is upgraded to the controller release 7.0.235.3 tries to associate to the controller with NAT enabled, the access point fails to join the controller. Due to an update to the software code of 7.0.235.3, the OEAP tries to join the non-NAT IP address, fails to join, and tries a rediscovery that fails again. The OEAP can never connect to the controller.
The issue can be resolved by setting the access point mode to local mode on the controller and let the access point join the controller. On joining, you must disable least latency join and upgrade to 7.0.235.3 release.
config network ap-discovery nat-ip-only { enable | disable }
– enable — Enables use of NAT IP only in Discovery response. This is the default. Use this command if all APs are outside of the NAT gateway.
– disable —Enables use of both NAT IP and non-NAT IP in discovery response. Use this command if APs are on the inside and outside of the NAT gateway; for example, Local Mode and OfficeExtend APs on the same controller.
Note To avoid stranding APs, you must disable AP link-latency (if enabled) before you use the disable option for the config network ap-discovery nat-ip-only command. To disable AP link-latency, use the config ap link-latency disable all command.
/mnt/images
directory in the controller, the upgrade fails for the first time. The upgrade completes successfully when you upgrade again. The upgrade failure could have occurred based on one of the following reasons: – If the image files are renamed manually in the controller.
– The files
bzImage.bak
, bzImage.pri
, initrd.bak
, and initrd.pri
are files that are shipped with the 4.2 release and over time these filenames have changed resulting in a failed upgrade.
Table 2 lists the controller software releases that support specific Cisco access points. The First Support column lists the earliest controller software release that supports the access point. For access points that are not supported in ongoing releases, the Last Support column lists the last release that supports the access point.
-A and N: 4.1.190.1 or 5.2 or later1 |
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This section describes the interoperability of the version of controller software with other client devices.
Table 3 describes the configuration used for testing the clients.
Table 4 lists the versions of the clients. The traffic tests included data or voice. The clients included laptops, handheld devices, phones, and printers.
Before upgrading your controller to software release 7.0.235.3 in a mesh network, you must comply with the following rules.
Table 5 outlines the upgrade compatibility of controller mesh and nonmesh releases and indicates the intermediate software releases required as part of the upgrade path.
The software upgrade notes are as follows:
Note If you downgrade to a mesh release, you must then reconfigure the controller. We recommend that you save the configuration from the mesh release before upgrading to release 7.0.235.3 for the first time. Then, you can reapply the configuration if you need to downgrade.
Y2 |
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Y3 |
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Y 4 |
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2.You can upgrade directly from software release 4.1.190.5 to 4.1.192.35M; however, upgrading to 4.1.191.24M before upgrading to 4.1.192.35M is highly recommended. |
When you upgrade to the latest software release, the software on the access points associated with the controller is also automatically upgraded. When an access point is loading software, each of its LEDs blinks in succession. Up to 10 access points can be concurrently upgraded from the controller.
– Delete all WLANs that are mapped to interface groups and create new ones.
– Ensure that all WLANs are mapped to interfaces rather than interface groups.
Use any of the following workarounds to correct this issue:
– In WCS, change the SNMP credentials for this controller to v2C and then back to V3.
– Add the controller to the WCS.
Note When a config XML is downloaded, the SNMP engine ID is reset to the default value. If the SNMP engine ID is configured, you must configure it again after you apply the newly downloaded configuration.
For AP1552 operating in the U.S. domain, when upgrading the mesh network from 7.0.116.0 or 7.0.220.0 release to the 7.0.235.3 release, select channel (149, 153) or (157, 161) if you choose 40-MHz bandwidth for backhaul. After the upgrade is propagated to the whole of the mesh network, then you can change to the other channel selection.
Step 1 Upload your controller configuration files to a server to back them up.
Note We highly recommend that you back up your controller’s configuration files prior to upgrading the controller software. Otherwise, you must manually reconfigure the controller.
Step 2 Follow these steps to obtain the 7.0.235.3 controller software and the Cisco Unified Wireless Network Controller Boot Software 7.0.230.0 ER.aes file from the Software Center on Cisco.com:
a. Click this URL to go to the Software Center:
http://tools.cisco.com/support/downloads/go/Redirect.x?mdfid=278875243
c. Click Wireless LAN Controllers.
d. Click Standalone Controllers or Integrated Controllers and Controller Modules.
f. If necessary, click a controller model.
g. If you chose Standalone Controllers in Step Click Standalone Controllers or Integrated Controllers and Controller Modules., click Wireless LAN Controller Software.
h. If you chose Cisco Catalyst 6500 Series/7600 Series Wireless Services Module (WiSM) in Step Click a controller series., click Wireless Services Modules (WiSM) Software.
i. Click a controller software release. The software releases are labeled as follows to help you determine which release to download:
j. Click a software release number.
k. Click the filename ( filename.aes).
m. Read Cisco’s End User Software License Agreement and then click Agree.
n. Save the file to your hard drive.
o. Repeat steps a. through n. to download the remaining file (either the 7.0.235.3 controller software or the Cisco Unified Wireless Network Controller Boot Software 7.0.230.0 ER.aes file).
Step 3 Copy the controller software file ( filename.aes) and the Cisco Unified Wireless Network Controller Boot Software 7.0.230.0 ER.aes file to the default directory on your TFTP or FTP server.
Step 4 (Optional) Disable the controller 802.11a/n and 802.11b/g/n networks.
Note For busy networks, controllers on high utilization, or small controller platforms it is advisable to disable the 802.11a/b/g/n networks as a precautionary measure.
Step 5 Click Commands > Download File to open the Download File to Controller page.
Step 6 From the File Type drop-down list, choose Code.
Step 7 From the Transfer Mode drop-down list, choose TFTP or FTP.
Step 8 In the IP Address text box, enter the IP address of the TFTP or FTP server.
Step 9 If you are using a TFTP server, the default values of 10 retries for the Maximum Retries text field, and 6 seconds for the Timeout text field should work fine without any adjustment. However, you can change these values if desired. To do so, enter the maximum number of times that the TFTP server attempts to download the software in the Maximum Retries text box and the amount of time (in seconds) that the TFTP server attempts to download the software in the Timeout text box.
Step 10 In the File Path text box, enter the directory path of the software.
Step 11 In the File Name text box, enter the name of the software file ( filename.aes).
Step 12 If you are using an FTP server, follow these steps:
a. In the Server Login Username text box, enter the username to log on to the FTP server.
b. In the Server Login Password text box, enter the password to log on to the FTP server.
c. In the Server Port Number text box, enter the port number on the FTP server through which the download occurs. The default value is 21.
Step 13 Click Download to download the software to the controller. A message appears indicating the status of the download.
Step 14 After the download is complete, click Reboot.
Step 15 If prompted to save your changes, click Save and Reboot.
Step 16 Click OK to confirm your decision to reboot the controller.
Step 17 After the controller reboots, repeat Click Commands > Download File to open the Download File to Controller page. to Click OK to confirm your decision to reboot the controller. to install the remaining file (either the 7.0.235.3 controller software or the Cisco Unified Wireless Network Controller Boot Software 7.0.230.0 ER.aes file).
Step 18 For Cisco WiSMs, reenable the controller port channel on the Catalyst switch.
Step 19 If you have disabled the 802.11a/b/g networks in (Optional) Disable the controller 802.11a/n and 802.11b/g/n networks., reenable them.
Step 20 If desired, reload your latest configuration file to the controller.
Step 21 To verify that the 7.0.235.3 controller software is installed on your controller, click Monitor on the controller GUI and look at the Software Version field under Controller Summary.
Step 22 To verify that the Cisco Unified Wireless Network Controller Boot Software 7.0.230.0 ER.aes file is installed on your controller, enter the show sysinfo command on the controller CLI and look at the Emergency Image Version field.
Note If you do not install the 7.0.235.0 ER.aes file, the Emergency Image Version field shows “N/A.”
Field Upgrade Software (FUS) is a special AES package that performs various system-related component upgrades. We recommend, although not mandatory, that you perform an FUS upgrade to upgrade components such as the bootloader, field recovery image, FPGA/MCU, and other firmware to their latest respective versions.
Note On Cisco 5500 Series Controllers, it is observed that the controller sporadically reboots (bug CSCtr39523) and displays the following FPGA error message:
fpga: Lost heartbeat from Environment controller, system will reboot in 5 seconds!!!
A crash file is not created to debug or troubleshoot the error.)
You can resolve this issue by upgrading to FUS 1.7.0.0 or greater. For more information on the FUS upgrade, see
http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_1_7_0_0.html
– Cisco 5500 Series Wireless LAN Controller
– Cisco Wireless Services Module 2 (WiSM2)
Step 1 Go to the Cisco Software Center at this URL: https://software.cisco.com/download/navigator.html
Step 2 Choose Products > Wireless > Wireless LAN Controller.
Step 3 Choose either of the following depending on the controller platform you use:
Step 4 Choose the controller model number or name. The Download Software page is displayed.
Step 5 Choose Wireless LAN Controller Software.
Step 6 Click a controller software release. The software releases are labeled as follows to help you determine which release to download:
Step 7 Click a software release number. Click the filename ( filename.aes). The following AES files are available for various controller platforms:
Step 9 Read Cisco’s End User Software License Agreement and then click Agree.
Step 10 Save the file to your hard drive.
Step 11 Copy the AES file ( filename.aes) to the default directory on your TFTP or FTP server.
Step 1 Enter the following commands on the controller CLI:
a. transfer download datatype code
b. transfer download serverip serverip
c. transfer download mode { tftp | ftp }
d. transfer download username user
e. transfer download password password
f. transfer download filename filename.aes
Step 2 Enter the following command to reboot the controller:
Information similar to the following appears:
The controller reboots with the upgraded component.
Step 4 The controller might undergo multiple reboot cycles to upgrade all the components. Press y when you are prompted to reboot the controller. After all the components are upgraded, the controller reboots with the existing controller software version.
This section contains important information to keep in mind when installing controllers and access points.
Warning This warning means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Use the statement number provided at the end of each warning to locate its translation in the translated safety warnings that accompanied this device. Statement 1071
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030
Warning Do not locate the antenna near overhead power lines or other electric light or power circuits, or where it can come into contact with such circuits. When installing the antenna, take extreme care not to come into contact with such circuits, as they may cause serious injury or death. For proper installation and grounding of the antenna, please refer to national and local codes (e.g. U.S.: NFPA 70, National Electrical Code, Article 810, Canada: Canadian Electrical Code, Section 54). Statement 280
Warning This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that a fuse or circuit breaker no larger than 120 VAC, 15A U.S. (240 VAC, 10A international) is used on the phase conductors (all current-carrying conductors). Statement 13
Warning This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground connector. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available. Statement 1024
Warning Read the installation instructions before you connect the system to its power source. Statement 10
Warning Do not work on the system or connect or disconnect any cables (Ethernet, cable, or power) during periods of lightning activity. The possibility of serious physical injury exists if lightning should strike and travel through those cables. In addition, the equipment could be damaged by the higher levels of static electricity present in the atmosphere. Statement 276
Warning Do not operate the unit near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use. Statement 364
Warning In order to comply with radio frequency (RF) exposure limits, the antennas for this product should be positioned no less than 6.56 ft. (2 m) from your body or nearby persons. Statement 339
Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017
Follow the guidelines in this section to ensure proper operation and safe use of the controllers and access points.
FCC Compliance with its action in ET Docket 96-8, has adopted a safety standard for human exposure to RF electromagnetic energy emitted by FCC-certified equipment. When used with approved Cisco Aironet antennas, Cisco Aironet products meet the uncontrolled environmental limits found in OET-65 and ANSI C95.1, 1991. Proper operation of this radio device according to the instructions in this publication results in user exposure substantially below the FCC recommended limits.
For your safety, and to help you achieve a good installation, read and follow these safety precautions. They might save your life!
1. If you are installing an antenna for the first time, for your own safety as well as others, seek professional assistance. Your Cisco sales representative can explain which mounting method to use for the size and type of antenna you are about to install.
2. Select your installation site with safety as well as performance in mind. Electric power lines and phone lines look alike. For your safety, assume that any overhead line can kill you.
3. Call your electric power company. Tell them your plans and ask them to come look at your proposed installation. This is a small inconvenience considering your life is at stake.
4. Plan your installation carefully and completely before you begin. Successfully raising a mast or tower is largely a matter of coordination. Each person should be assigned to a specific task and should know what to do and when to do it. One person should be in charge of the operation to issue instructions and watch for signs of trouble.
5. When installing an antenna, remember:
b. Do not work on a wet or windy day.
c. Do dress properly—shoes with rubber soles and heels, rubber gloves, long-sleeved shirt or jacket.
6. If the assembly starts to drop, get away from it and let it fall. Remember that the antenna, mast, cable, and metal guy wires are all excellent conductors of electrical current. Even the slightest touch of any of these parts to a power line completes an electrical path through the antenna and the installer: you!
7. If any part of an antenna system should come in contact with a power line, do not touch it or try to remove it yourself. Call your local power company. They will remove it safely.
8. If an accident should occur with the power lines, call for qualified emergency help immediately.
Refer to the appropriate quick start guide or hardware installation guide for instructions on installing controllers and access points.
Note To meet regulatory restrictions, all external antenna configurations must be installed by experts.
Personnel installing the controllers and access points must understand wireless techniques and grounding methods. Access points with internal antennas can be installed by an experienced IT professional.
The controller must be installed by a network administrator or qualified IT professional, and the proper country code must be selected. Following installation, access to the controller should be password protected by the installer to maintain compliance with regulatory requirements and ensure proper unit functionality.
The USB console port on the Cisco 5500 Series Controllers and the Cisco WiSM2 connects directly to the USB connector of a PC using a USB Type A-to-5-pin mini Type B cable.
Note The 4-pin mini Type B connector is easily confused with the 5-pin mini Type B connector. They are not compatible. Only the 5-pin mini Type B connector can be used.
For operation with Microsoft Windows, the Cisco Windows USB console driver must be installed on any PC connected to the console port. With this driver, you can plug and unplug the USB cable into and from the console port without affecting Windows HyperTerminal operations.
Note Only one console port can be active at a time. When a cable is plugged into the USB console port, the RJ-45 port becomes inactive. Conversely, when the USB cable is removed from the USB port, the RJ-45 port becomes active.
You can now remove your console cable and plug it back in again without having to quit the terminal program and restarting it.
The USB console drivers are available for Microsoft Windows (both 32 and 64-bit architectures), Apple Mac OS, and Linux. See the README PDF files in the USB Console Driver.zip package for installation instructions.
To download and configure the Cisco Windows USB console driver, follow these steps:
Step 1 Go to the Cisco Software Center at this URL:
https://software.cisco.com/download/navigator.html
Step 2 Choose Products > Wireless > Wireless LAN Controller > Standalone Controllers > Cisco 5500 Series Wireless Controllers.
Step 3 Click USB Console Port Driver Software.
Note The USB Console Port Driver Software is also applicable to the Cisco WiSM2.
Step 5 Save the file to your hard drive.
Step 6 Extract the.zip file and install the driver depending on the operating system you are using.
Note Instructions for installing the USB console port software for Apple Mac OS and Linux are provided in the downloadable zip file.
Step 7 Connect the mini Type B connector to the USB console port on the controller. Connect the Type A connector to a USB port on your PC.
This section describes important information about controllers and nonmesh lightweight access points.
All features included in a Wireless LAN Controller WPlus license are now included in the base license; this change is introduced in release 7.0.235.3. There are no changes to WCS BASE and PLUS licensing.
These WPlus license features are included in the base license:
The licensing change can affect features on your wireless LAN when you upgrade or downgrade software releases, so you should be aware of these guidelines:
Note Some references to the Wireless LAN Controller WPlus licenses remain in WCS and in the controller CLI and GUI in release 7.0.235.3. However, WLC WPlus license features have been included in the Base license, so you can ignore those references.
You can now purchase licenses to support additional access points on Cisco 5500 Series and Cisco Flex 7500 Series Controllers. The new additive licenses (for 25, 50, or 100 access points) can be upgraded from all license tiers (12, 25, 50, 100, and 250 access points). The additive licenses are supported through both rehosting and RMAs.
One Time Passwords (OTPs) are supported on the Wireless Lan Controller (WLC) using TACACS and RADIUS. In this configuration, the controller acts as a transparent passthrough device. The controller forwards all client requests to the TACACS/RADIUS server without inspecting the client behavior. When using OTP, the client must establish a single connection to the controller to function properly. The controller currently does not have any intelligence or checks to correct a client that is trying to establish multiple connections.
In software releases prior to 6.0, the controller sends uppercase alphabetic characters in the MAC address. In software release 6.0 or later, the controller sends lowercase alphabetic characters in the MAC address for the RADIUS called-station-id and calling-station-id attributes. If you enabled these attributes for 802.1X authentication in previous releases and upgrade to software release 6.0, client authentication fails. Therefore, you must change the MAC addresses to lowercase characters on the RADIUS server before upgrading to software release 6.0.
You can create up to 50 access point groups for Cisco 2100 Series Controllers and controller network modules and up to 300 access point groups for Cisco 4400 Series Controllers, 500 AP Groups on 5500 Series Controllers, and 192 access point groups for the Cisco WiSM, and the 3750G wireless LAN controller switch.
You must disable IP-MAC address binding in order to use an access point in sniffer mode if the access point is joined to a 5500 series controller, a 2100 series controller, or a controller network module running software release 6.0. To disable IP-MAC address binding, enter this command using the controller CLI: config network ip-mac-binding disable.
WLAN 1 must be enabled in order to use an access point in sniffer mode if the access point is joined to a 5500 series controller, a 2100 series controller, or a controller network module running software release 6.0. If WLAN 1 is disabled, the access point cannot send packets.
Learn more about inter-release controller mobility compatibility across releases at this URL:
http://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#pgfId-149658
The Rogue Location Discovery Protocol (RLDP) is a controller feature that detects the presence of rogue access points that are connected to your wired network. RLDP operates with these limitations:
When clients use the internal DHCP server of the controller, IP addresses are not preserved across reboots. As a result, multiple clients can be assigned with the same IP address. To resolve any IP address conflicts, clients must release their existing IP address and request a new one.
When you plug a controller into an AC power source, the bootup script and power-on self-test run to initialize the system. During this time, you can press Esc to display the bootloader Boot Options Menu. The menu options for the 5500 and Flex 7500 series controllers are different than for other controller platforms.
Bootloader Menu for 5500 Series Controllers:
Bootloader Menu for Other Controller Platforms:
Enter 1 to run the current software, enter 2 to run the previous software, or enter 4 (on a 5500 series controller) or 5 (on another controller platform) to run the current software and set the controller configuration to factory defaults. Do not choose the other options unless directed to do so.
Note See the Installation Guide or Quick Start Guide for your controller for more details on running the bootup script and power-on self-test.
Cisco 5500 series controllers do not support fragmented pings on any interface. Similarly, Cisco 4400 series controllers, the Cisco WiSM, and the Catalyst 3750G Integrated Wireless LAN Controller Switch do not support fragmented pings on the AP-manager interface.
When a controller is configured to allow only 802.11g traffic, 802.11b client devices are able to successfully connect to an access point but cannot pass traffic. When you configure the controller for 802.11g traffic only, you must mark 11g rates as mandatory.
If you have a firewall or Access Control List (ACL) between the controller and its access points that allows LWAPP traffic, before upgrading to software release 5.2 or later and CAPWAP, you should allow CAPWAP traffic from the access points to the controller by opening the following destination ports:
The access points use a random UDP source port to reach these destination ports on the controller. In controller software release 5.2, LWAPP was removed and replaced by CAPWAP, but if you have a new out-of-the-box access point, it could try to use LWAPP to contact the controller before downloading the CAPWAP image from the controller. Once the access point downloads the CAPWAP image from the controller, it uses only CAPWAP to communicate with the controller.
Note After 60 seconds of trying to join a controller with CAPWAP, the access point falls back to using LWAPP. If it cannot find a controller using LWAPP within 60 seconds, it tries again to join a controller using CAPWAP. The access point repeats this cycle of switching from CAPWAP to LWAPP and back again every 60 seconds until it joins a controller.
Note An access point with the LWAPP recovery image (an access point converted from autonomous mode or an out-of-the-box access point) uses only LWAPP to try to join a controller before downloading the CAPWAP image from the controller.
Several messages might flood the message logs when the controller boots up. These messages appear because of a failure to read or delete several different configuration files. These are low-severity messages that can safely be ignored. They do not affect controller functionality. These are some examples:
The controller supports web authentication redirects only to HTTP (HTTP over TCP) servers. It does not support web authentication redirects to HTTPS (HTTP over SSL) servers.
Note For Cisco 5500 Series Controllers, Cisco 2100 Series Controllers, and controller network modules, you must configure a preauthentication access control list (ACL) on the WLAN for the external web server and then choose this ACL as the WLAN preauthentication ACL under Security Policies > Web Policy on the WLANs > Edit page.
The 1250 series access points might contain a bootloader older than version 12.4(10b)JA. Units with old bootloaders do not generate a crash log when a crash occurs. The crash log is disabled so that a crash does not corrupt the flash file system. Units with bootloader versions 12.4(10b)JA or later generate a crash log if the access point is associated to a controller running software release 4.2.112.0 or later.
New 1250 series access points shipped from the factory contain new bootloader images, which fix the flash file system after it is corrupted during a crash (without losing files). This new bootloader automatically sets a new CRASH_LOG environment variable to "yes," which enables a crash log to be generated following a crash but only on controllers running software release 4.2.112.0 or later. Therefore, no user configuration is needed to enable a crash log on new 1250 series access points shipped from the factory.
These examples show the output from the CLI commands (in bold) that you use to check the bootloader version on lightweight and autonomous 1250 series access points:
In controller software release 4.2.61.0 and later, the bootup configuration file of the controller is stored in an Extensible Markup Language (XML) format rather than in binary format. When you upgrade a controller to 4.2.61.0 or a later software release, the binary configuration file is migrated and converted to XML.
Note You cannot download a binary configuration file onto a controller running software release 7.0.235.3. Also, do not attempt to make changes to the configuration file. If you do so and then download the file to a controller, the controller displays a cyclic redundancy checksum (CRC) error while it is rebooting and returns the configuration parameters to their default values.
Note You cannot modify the configuration files for 2000, 4000, and 4100 series controllers. The ability to modify configuration files is available in controller software release 5.2 or later, and these controllers support only earlier software releases (up to the 4.2 release for 2000 series controllers and up to the 3.2 release for 4000 and 4100 series controllers).
When you upgrade to controller software release 5.0.148.0 or later, the LWAPP mode changes to Layer 3 if it was previously configured for Layer 2.
If you downgrade from controller software release 7.0.235.3, 7.0.220.0, 6.0.196.0, 6.0.188.0, 5.2.178.0, 5.2.157.0, 5.1.151.0, or 5.0.148.0 to 4.2.61.0 or an earlier release, the LWAPP mode changes from Layer 3 to Layer 2. Access points might not join the controller, and you must manually reset the controller to Layer 3 to resolve this issue.
Access points running recent Cisco IOS versions transmit multicast frames at the highest configured basic rate and management frames at the lowest basic mandatory rates, can cause reliability problems. Access points running LWAPP or autonomous Cisco IOS should transmit multicast and management frames at the lowest configured basic rate. Such behavior is necessary to provide good coverage at the cell’s edge, especially for unacknowledged multicast transmissions where multicast wireless transmissions might fail to be received.
Because multicast frames are not retransmitted at the MAC layer, clients at the edge of the cell might fail to receive them successfully. If reliable reception is a goal, multicast frames should be transmitted at a low data rate. If support for high data rate multicast frames is required, it might be useful to shrink the cell size and disable all lower data rates.
Depending on your specific requirements, you can take the following actions:
The controller disables the radio bands that are not permitted by the configured country of operation (CSCsi48220).
802.11a channels 120, 124, and 128 are disabled to achieve compliance with draft EN 301 893 version 1.5.1 on the following -E regulatory domain products: AP1131AG, AP1242AG, and AP1252AG.
In controller software release 4.2 or later, external antenna gain is factored into the maximum transmit power of the access point. Therefore, when you upgrade from an earlier software release to 4.2 or later, you might see a decrease in transmit power output.
Note The Transmit Power level can range between –1 dBm to 30 dBm.
Controller software release 4.2 or later enables you to upgrade to an oversized access point image by deleting the recovery image to create sufficient space. This feature affects only access points with 8 MB of flash (the 1100, 1200, and 1310 series access points). All newer access points have a larger flash size than 8 MB.
Note As of August 2007, there are no oversized access point images, but as new features are added, the access point image size will continue to grow.
The recovery image provides a backup image that can be used if an access point power-cycles during an image upgrade. The best way to avoid the need for access point recovery is to prevent an access point from power-cycling during a system upgrade. If a power-cycle occurs during an upgrade to an oversized access point image, you can recover the access point using the TFTP recovery procedure.
To recover the access point using the TFTP recovery procedure, follow these steps:
Step 1 Download the required recovery image from Cisco.com (c1100-rcvk9w8-mx, c1200-rcvk9w8-mx, or c1310-rcvk9w8-mx) and install it in the root directory of your TFTP server.
Step 2 Connect the TFTP server to the same subnet as the target access point and power-cycle the access point. The access point boots from the TFTP image and then joins the controller to download the oversized access point image and complete the upgrade procedure.
Step 3 After the access point has been recovered, you might remove the TFTP server.
The multicast queue depth is 512 packets on all controller platforms. However, the following message might appear on 2106 controllers: “Rx Multicast Queue is full on Controller.” This message does not appear on 4400 series controllers because the 4400 NPU filters ARP packets while controllers forwarding (multicast or otherwise) and multicast replication is done in the software on the 2106.
This message appears when too many multicast messages are sent to the CPU. In controller software releases prior to 5.1, multicast, CDP, and ARP packets share the same queue. However, in software releases 5.1 and later, these packets are separated into different queues. There are currently no controller commands that can be entered to determine if the multicast receive queue is full. When the queue is full, some packets are randomly discarded.
Controller software release 4.1.178.0 or later enables you to configure a MAC-filtering IP address for a workgroup bridge (WGB) wired client to allow passive WGB wired clients, such as terminal servers or printers with static IP addresses, to be added and remain in the controller’s client table while the WGB is associated to a controller in the mobility group. This feature, activated by the config macfilter ipaddress MAC_address IP_address CLI command, can be used with any passive device that does not initiate any traffic but waits for another device to start communication.
This feature enables the controller to learn the IP address of a passive WGB wired client when the WGB sends an IAPP message to the controller that contains only the WGB wired client’s MAC address. Upon receiving this message from the WGB, the controller checks the local MAC filter list (or the anchor controller’s MAC filter list if the WGB has roamed) for the client’s MAC address. If an entry is found and it contains an IP address for the client, the controller adds the client to the controller’s client table.
Note Unlike the existing MAC filtering feature for wireless clients, you are not required to enable MAC filtering on the WLAN for WGB wired clients.
Note WGB wired clients that use MAC filtering do not need to obtain an IP address through DHCP to be added to the controller’s client table.
Controller software releases 7.0.116.0 and later provide the passive client feature for Cisco 2100, 2500, 5500 Series Controllers and Cisco WiSM2 that enable devices like printers connected to WGB to hear ARP requests, answer and move to run state. That is a dynamic alternative that replaces the MAC filter. The MAC filter feature is required for Cisco 4400 Series Controller and WiSM for passive clients.
In controller software release 4.1.185.0 or later, CKIP is supported for use only with static WEP. It is not supported for use with dynamic WEP. Therefore, a wireless client that is configured to use CKIP with dynamic WEP is unable to associate to a wireless LAN that is configured for CKIP. We recommend that you use either dynamic WEP without CKIP (which is less secure) or WPA/WPA2 with TKIP or AES (which are more secure).
Cisco Aironet lightweight access points do not connect to the controller if the date and time are not set properly. Set the current date and time on the controller before allowing the access points to connect to it.
For controller software release 4.2 or later, if a location appliance (release 3.1 or later) is installed on your network, the time zone must be set on the controller to ensure proper synchronization between the two systems. Also, we highly recommend that the time be set for networks that do not have location appliances. See Chapter 4 of the Cisco Wireless LAN Controller Configuration Guide, Release 7.0.116.0, for instructions to set the time and date on the controller.
Note The time zone can be different for the controller and the location appliance, but the time zone delta must be configured accordingly, based on Greenwich Mean Time (GMT).
Federal Communications Commission (FCC) dynamic frequency selection (DFS) is supported only on 1130 series access points in the United States, Canada, and the Philippines that have a new FCC ID. Access points use DFS to detect radar signals such as military and weather sources and then switch channels to avoid interfering with them. 1130 series access points with FCC DFS support have an FCC ID LDK102054E sticker. 1130 series access points without FCC DFS support have an LDK102054 (no E suffix) sticker. 1130 series access points that are operating in the United States, Canada, or the Philippines; have an FCC ID E sticker; and are running the 4.1.171.0 software release or later can use channels 100 through 140 in the UNII-2 band.
After you change the position of the 802.11a radio antenna for a lightweight 1200 or 1230 series access point, the power setting is not updated in the controller GUI and CLI. Regardless of the user display, the internal data is updated, and the transmit power output is changed accordingly. To see the correct transmit power display values, reboot the access point after changing the antenna’s position. (CSCsf02280)
We recommend that the retransmit timeout value for TACACS+ authentication, authorization, and accounting servers be increased if you experience repeated reauthentication attempts or the controller falls back to the backup server when the primary server is active and reachable. The default retransmit timeout value is 2 seconds and can be increased to a maximum of 30 seconds.
An access point can be powered by a Cisco prestandard 15-W switch with Power over Ethernet (PoE) by entering this command:
config ap power pre-standard { enable | disable } { all | Cisco_AP }
A Cisco prestandard 15-W switch does not support intelligent power management (IPM) but does have sufficient power for a standard access point. The following Cisco prestandard 15-W switches are available:
The enable version of this command is required for full functionality when the access point is powered by a Cisco prestandard 15-W switch. It is safe to use if the access point is powered by either an IPM switch or a power injector or if the access point is not using one of the 15-W switches listed above.
You might need this command if your radio operational status is “Down” when you expect it to be “Up.” Enter the show msglog command to look for this error message, which indicates a PoE problem:
After you perform these functions on the controller, you must reboot the controller for the changes to take effect:
The Status LED and AP LED of 2106 controllers do not flash amber when software is being uploaded to the controller or downloaded to an access point, respectively.
Note Some versions of the Cisco 2106 Wireless LAN Controller Quick Start Guide might incorrectly state that these LEDs flash amber during a software upload or download.
Rate-limiting is applicable to all traffic destined to the CPU from either direction (wireless or wired). We recommend that you always run the controller with the default config advanced rate enable command in effect in order to rate limit traffic to the controller and protect against denial-of-service (DoS) attacks. You can use the config advanced rate disable command to stop rate-limiting of Internet Control Message Protocol (ICMP) echo responses for testing purposes. However, we recommend that you reapply the config advanced rate enable command after testing is complete.
Controller software release 4.1.185.0 or later is designed to support ICMP pings to the management interface either from a wireless client or a wired host. ICMP pings to other interfaces configured on the controller are not supported.
Pinging from a network device to a controller dynamic interface might not work in some configurations. When pinging does operate successfully, the controller places Internet Control Message Protocol (ICMP) traffic in a low-priority queue, and the reply to ping is by best effort. Pinging does not pose a security threat to the network. The controller rate limits any traffic to the CPU, and flooding the controller is prevented. Clients on the WLAN associated with the interface pass traffic normally.
The controller software 7.0.220.0 and later releases are compatible with the Gateway Load Balancing Protocol (GLBP).
As designed, 4400 series controllers do not forward IP subnet broadcasts from the wired network to wireless clients across the EoIP guest tunnel.
You must install software release 4.0.179.8 or later on the controller before connecting 1100 and 1300 series access points to the controller.
To prevent or block a wired or wireless client from accessing the management network on a controller (from the wireless client dynamic interface or VLAN), the network administrator must ensure that only authorized clients gain access to the management network through proper CPU ACLs, or use a firewall between the client dynamic interface and the management network.
We recommend that aggressive load balancing always be turned off either through the controller GUI or CLI in any wireless network that is supporting voice, regardless of vendor. When aggressive load balancing is turned on, voice clients can hear an audible artifact when roaming, if the handset is refused at its first reassociation attempt.
It is not possible to enable or disable band selection and client load balancing globally through the controller GUI or CLI. You can, however, enable or disable band selection and client load balancing for a particular WLAN. Band selection and client load balancing are enabled globally by default.
Cisco IOS Lightweight Access Point Protocol (LWAPP) access points have a default password of Cisco, and the prestage configuration for LWAPP access points is disabled by default. To enable it, you must configure the access point with a new username and password when it joins the controller. Enter this command using the controller CLI to push a new username and password to the access point:
config ap mgmtuser add user-id password password { Cisco_AP | all }
The password pushed from the controller is configured as “enable password” on the access point.
There are some cases where the prestage configuration for LWAPP access points is disabled and the access point displays the following error message when the CLI commands are applied:
For more information, see Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode at : http://www.cisco.com/c/en/us/td/docs/wireless/controller/8-0/configuration-guide/b_cg80/b_cg80_chapter_01101010.html
If a client is not able to connect to an access point, and the security policy for the WLAN and client are correct, the client has probably been disabled. In the controller GUI, you can view the client’s status on the Monitor > Summary page under Client Summary. If the client is disabled, click Remove to clear the disabled state for that client. The client automatically comes back and, if necessary, reattempts authentication.
Automatic disabling happens as a result of too many failed authentications. Clients disabled due to failed authorization do not appear on the permanent disable display. This display is only for those MACs that are set as permanently disabled by the administrator.
Client exclusion can happen both statically and dynamically. In a static exclusion, the client is disabled permanently. In dynamic exclusion, the client is excluded until the configured exclusion timeout is reached in the WLAN.
If a RADIUS server is on a directly connected subnet (with respect to the controller), then that subnet must be the management VLAN subnet. If you use RADIUS interface override (using the command config wlan radius_server overwrite-interface), you can connect to the dynamic interface to the server.
If a TACACS+ server is on a directly connected subnet (with respect to the controller), then that subnet must be the management VLAN subnet.
This product has been tested with CiscoSecure ACS 4.2 and later and works with any RFC-compliant RADIUS server.
Management usernames and local netuser names must be unique because they are stored in the same database. That is, you cannot assign the same name to a management user and a local netuser.
The controller bootloader stores a copy of the active primary image and the backup image. If the primary image becomes corrupted, you can use the bootloader to boot with the backup image.
With the backup image stored before rebooting, be sure to choose Option 2: Run Backup Image from the boot menu to boot from the backup image. Then, upgrade with a known working image and reboot the controller.
Because of a caching problem in the Internet Explorer 5.x browser, the home page retains the web authentication login. To correct this problem, clear the history or upgrade your workstation to Internet Explorer 6.x.
Client card implementations might mitigate the effectiveness of ad-hoc containment.
The controller has commonly known default values of “public” and “private” for the read-only and read-write SNMP community strings. Using these standard values presents a security risk. Therefore, We strongly advise that you change these values. See the Cisco Wireless LAN Controller Configuration Guide, Release 7.0.116.0 for configuration instructions.
The controller uses a default value of “default” for the username, authentication password, and privacy password for SNMP v3 users. Using these standard values presents a security risk. Therefore, we strongly advise that you change these values. See the Cisco Wireless LAN Controller Configuration Guide, Release 7.0.116.0, for configuration instructions.
Note SNMP v3 is time sensitive. Ensure that you have configured the correct time and time zone on your controller.
The DirectStream feature from the controller does not work for clients behind workgroup bridges and the stream is denied.
The controller does not support transmitting of jumbo frames. To avoid having the controller transmit CAPWAP packets to the AP that necessitates fragmentation and reassembly, reduce the MTU/MSS on the client side.
This hardware feature is not supported on 2100 series controllers:
These software features are not supported on 2100 series controllers:
Note You can replicate this functionality on a 2100 series controller by creating an open WLAN using an ACL.
These software features are not supported on Cisco 2500 Series Controllers:
These software features are not supported on Cisco 5500 Series Controllers:
Note For 5500 series controllers, you are not required to configure an AP-manager interface. The management interface acts like an AP-manager interface by default, and the access points can join on this interface.
Note You can replicate this functionality on a 5500 series controller by creating an open WLAN using an ACL.
These software features are not supported on Cisco Flex 7500 Series Controllers:
Note For Cisco 7500 Series controllers, it is not necessary to configure an AP-manager interface. The management interface acts like an AP-manager interface by default, and the access points can join on this interface.
Note AP associated with the controller in local mode should be converted to H-REAP mode or Monitor mode.
In a crowded RF environment, clients might not be able to detect the desired SSID because of internal table limitations. Sometimes disabling and then enabling the client interface forces a rescan. Your RF environment needs to be controlled. Cisco UWN rogue access point detection and containment can help you to enforce RF policies in your buildings and campuses.
When upgrading a controller from operating system release 2.0 or 2.2.127.4 to release 3.2.116.21 or later, update the external web authentication configuration as follows:
1. For Cisco 5500 Series Controllers, 2100 Series Controllers, and controller network modules, you must configure a preauthentication access control list (ACL) on the WLAN for the external web server and then choose this ACL as the WLAN preauthentication ACL under Security Policies > Web Policy on the WLANs > Edit page.
2. For Cisco 4400 Series Controllers and the Cisco WiSM, instead of using a preauthentication ACL, the network manager must configure the external web server IP address using this command:
config custom-web ext-webserver add index IP-address
Note IP-address is the address of any web server that performs external web authentication.
3. The network manager must use the new
login_template
shown here as follows:
Note Ensure to format the script to avoid any extra characters or spaces before using the web authentication template.
When the port status on the controller changes, the switch status does not get changed. This is a known issue. For example, when the controller port goes down, the switch port is still in the administrable state. This has been resolved in Cisco 5500 Series Controllers.
The unified and autonomous access point do not support the mac-address command for the wireless interfaces. When invoked, the command executes but can cause the access point to fail.
CCKM Fast-roaming clients in hybrid REAP mode works only with the following authentication or key management combinations:
CCKM Fast-roaming clients in hybrid REAP mode is not supported with the following authentication or key management combinations:
Consider a scenario where you configured the active RADIUS fallback feature using AAA for a controller. When using this feature, the controller sends the accounting request probes without the session ID during a fallback, which might be dropped by the RADIUS Server. The controller cannot send accounting information with the session ID because during the fallback the controller does not have the context of the client. Some RADIUS Servers like ISE might report errors for accounting probes that are sent to ISE. If your Authentication and Accounting servers are the same, ignore the errors that are logged in ISE.
When access points are in standalone mode, they are not aware the states and status of the clients associated with the access points. For example, consider a scenario where two clients (Client 1 and Client 2) are communicating with each other. Also, assume that both the clients are associated with same access point (say, AP1). Let us also assume that both AP1 and AP2 are in standalone mode. Now, if Client 1 roams to AP2, the packets sent from Client 2 do not reach Client 1.
You can place a lightweight access point under NAT. On the access point side, you can have any type of NAT configured. However, when you configure the controller, you can have only 1:1 (Static NAT) configured and the external NAT IP address configured on the dynamic AP management interface. This situation is applicable only for Cisco 5500 Series Controllers. NAT cannot be configured on the controller because LAPs cannot respond to controllers if the ports are translated to ports other than 5246 or 5247, which are meant for control and data messages.
Note Select the Enable NAT Address check box and enter the external NAT IP address if you want to be able to deploy your Cisco 5500 Series Controller behind a router or other gateway device that is using one-to-one mapping network address translation (NAT). NAT allows a device, such as a router, to act as an agent between the Internet (public) and a local network (private). In this case, it maps the controller’s intranet IP addresses to a corresponding external address. The dynamic AP-manager interface of the controller must be configured with the external NAT IP address so that the controller can send the correct IP address in the Discovery Response.
Note With CAPWAP, a controller behind NAT is not supported with the Cisco 4400 Series, 2100 Series Wireless LAN Controllers, and the WiSM.
This section describes important information about controllers and mesh access points.
The following controller features are not supported on mesh networks:
The following sections lists Open Caveats and Resolved Caveats for Cisco controllers and lightweight access points for version 7.0.235.3. For your convenience in locating caveats in the Cisco Bug Toolkit, the caveat titles listed in this section are drawn directly from the Bug Toolkit database. These caveat titles are not intended to be read as complete sentences because the title field length is limited. In the caveat titles, some truncation of wording or punctuation might be necessary to provide the most complete and concise description. The only modifications made to these titles are as follows:
Note If you are a registered cisco.com user, see the Bug Toolkit at the following website:
https://tools.cisco.com/bugsearch/
To become a registered cisco.com user, go to the following website:
https://tools.cisco.com/IDREG/guestRegistration.do?locale=en_US
Table 6 lists open caveats in controller software release 7.0.235.3.
Table 7 lists caveats resolved in controller software release 7.0.235.3.
If you need information about a specific caveat that does not appear in these release notes, you can use the Cisco Bug Toolkit to find caveats of any severity. Click this URL to browse to the Bug Toolkit:
https://tools.cisco.com/bugsearch/
(If you request a defect that cannot be displayed, the defect number might not exist, the defect might not yet have a customer-visible description, or the defect might be marked Cisco Confidential.)
For the most up-to-date, detailed troubleshooting information, see the Cisco TAC website at
http://www.cisco.com/c/en/us/support/index.html
Click Product Support > Wireless. Then choose your product and Troubleshooting to find information on the problem you are experiencing.
This section lists updates to user documentation that has not yet been added to either printed or online documents.
For additional information on the Cisco controllers and lightweight access points, see these documents:
For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at:
http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html
Subscribe to the What’s New in Cisco Product Documentation as a Really Simple Syndication (RSS) feed and set content to be delivered directly to your desktop using a reader application. The RSS feeds are a free service and Cisco currently supports RSS Version 2.0.