Table Of Contents
Release Notes for Cisco Aironet Access Points for Cisco IOS Release 12.3(8)JEA3
December 6, 2007
This release is a maintenance release and contains no new features. These release notes list open and resolved caveats for Cisco IOS Release 12.3(8)JEA3. They also provide important information about the Cisco Aironet 1130 and 1240 Series Access Points and 1300 Series Outdoor Access Point/Bridges.
Cisco IOS Release 12.3(8)JEA3 supports the 350, 1100, 1200, 1130, 1240, 1310 and 1410 autonomous platforms that were supported in Cisco IOS Release 12.3(8)JA and earlier.
These release notes contain the following sections:
The Cisco Aironet Access Point is a wireless LAN transceiver that acts as the connection point between wireless and wired networks or as the center point of a standalone wireless network. In large installations, the roaming functionality provided by multiple access points enables wireless users to move freely throughout the facility while maintaining uninterrupted access to the network.
You can configure and monitor 1100, 1130, 1200, 1230, 1240 series access points and the1300 series outdoor access point/bridge using the command-line interface (CLI), the web-browser interface, or Simple Network Management Protocol (SNMP).
Cisco IOS Release 12.3(8)JEA3 is a general maintenance release that concentrates on bug fixes. You can install Cisco IOS Release 12.3(8)JEA3 on all 350, 1100, 1130, 1200, 1230, 1240 series access points, and 1300 series outdoor access point/bridges.
Note Software upgrades fail when you use the web-browser interface to install Cisco IOS Release 12.3(8)JEA3 on 1200 series access points. The image size exceeds the access point's 4-MB restriction for software upgrades. Use TFTP to upgrade your access point to this release. For complete instructions on using TFTP to upgrade access point software, see the "Working with Software Images" section in the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points. Click this link to browse to that document:
You can also install this release on 350d and 1200 series access points that have been converted to run Cisco IOS software. You can tell whether an access point runs VxWorks or Cisco IOS software by looking at the GUI: the GUI on an access point running VxWorks has a yellow and red color scheme, and the GUI on an access point running Cisco IOS software has a green, light-green, and black color scheme.
Your 350 series access point must run one of these VxWorks versions before you can convert to IOS software: 12.03T, 12.02T1, 12.01T1, 11.23T, or 11.21. Your 1200 series access point must run one of these VxWorks versions before you can convert to IOS software: 12.03T, 12.02T1, 12.01T1, 12.00T, 11.56, or 11.54T. If your access point runs version 12.04, you must downgrade to a supported VxWorks version before upgrading to IOS software.
The conversion upgrade image for 350 series access points installs Cisco IOS Release 12.2(13)JA1 on your 350 series access point. The conversion upgrade image for 1200 series access points installs Cisco IOS Release 12.2(13)JA2 on your 1200 series access point.
Note Cisco Aironet 340 Series Access Points do not support IOS software. Do not attempt to load an IOS image on 340 series access points or on 350 and 1200 series access points that have not been converted.
Finding the IOS Software Version
To find the version of IOS software running on your access point, use a Telnet session to log into the access point and enter the show version EXEC command. This example shows command output from an access point running Cisco IOS Release 12.3(8)JA:ap1200>show versionCisco Internetwork Operating System SoftwareIOS (tm) C1200 Software (C1200-K9W7-M), Version 12.3(8)JACopyright (c) 1986-2006 by Cisco Systems, Inc.
On access points running IOS software, you can also find the software version on the System Software Version page in the access point's web-browser interface. If your access point does not run IOS software, the software version appears at the top left of most pages in the web-browser interface.
Upgrading to a New Software Release
For instructions on installing access point software for your access point:
Step 1 Follow this link to the Cisco home page:
Step 2 Click Support. Then click Download Software from the drop-down window. The Download Software page appears.
Step 3 Click Wireless Software. The Tools and Resources Downloads page appears.
Step 4 Scroll down to the Access Points section.
Step 5 Select the access point you are upgrading. The Log In page for that access point appears.
Note You must be a registered user to access the download page. If you are not a registered user, you may register by clicking Register at the cisco.com home page.
Step 6 Enter your username and password and click Log In. The Downloads page for the access point you selected appears.
Step 7 Click IOS Software. The IOS Software Downloads page appears.
Step 8 Select the appropriate release.
Step 9 In the Sort By section, click WIRELESS LAN. The Download page appears.
Step 10 Click DOWNLOAD. The Cisco End User Software License Agreement page appears.
Step 11 Read the agreement and click Agree to continue the download. The download process begins.
Step 12 Follow the instructions on your screen.
For information on Cisco IOS software, click this link to browse to the Cisco IOS Software Center on Cisco.com:
Disable Radios to Prevent Unexpected Reboot When Upgrading System Software
If your access point runs Cisco IOS Release 12.2(11)JA, 12.2(11)JA1, or 12.2(11)JA2, your access point might unexpectedly reboot after you upgrade to a later Cisco IOS Release. Because of a rare timing condition that affects the radios, the access point sometimes reboots immediately after the upgrade when the radios are enabled. However, after the access point reboots the upgrade is complete and the access point operates normally. To prevent the access point from rebooting unexpectedly, disable the radio interfaces before upgrading software.
Follow these steps to disable the radio interfaces using the web-browser interface:
Step 1 Browse to the Network Interfaces: Radio Settings page. Figure 1 shows the top portion of the Network Interfaces: Radio Settings page.
Figure 1 Network Interfaces: Radio Settings Page
Step 2 Select Disable to disable the radio.
Step 3 Click Apply at the bottom of the page.
Step 4 If your access point has two radios, repeat these steps for the second radio.
Beginning in privileged EXEC mode, follow these steps to disable the access point radios using the CLI:
If your access point has two radios, repeat these steps for the second radio. Use the no form of the shutdown command to enable the radio.
Converting to Cisco IOS Software
If your 350 or 1200 series access point does not run IOS software, you can use the conversion utility or the conversion upgrade image to convert the access point system to IOS software. Use the conversion utility to maintain the current configuration after the conversion, or load the upgrade image to convert to IOS software without saving the current configuration. Your access point must be running one of these VxWorks firmware versions before you can convert to IOS software:
•350 series access points must be running VxWorks version 12.03T, 12.02T1, 12.01T1, 11.23T, or 11.21
•1200 series access points must be running VxWorks version 12.03T, 12.02T1, 12.01T1, 12.00T, 11.56, or 11.54T
The conversion upgrade image for 350 series access points installs Cisco IOS Release 12.2(13)JA1 on your 350 series access point. The conversion upgrade image for 1200 series access points installs Cisco IOS Release 12.2(13)JA2 on your 1200 series access point.
Note The upgrade image and the conversion tool do not support VxWorks version 12.04. Access points running version 12.04 must be downgraded to a supported operating system version before you can use the upgrade image or the conversion tool.
Note The upgrade to Cisco IOS software is permanent; you cannot revert to non-IOS software. Product warranties do not cover unintended upgrades.
For complete instructions on using the conversion utility, refer to the Cisco Aironet Conversion Tool for Cisco IOS Software, 2.0 Administrator Guide for Windows. Click this link to browse to the Administrator Guide:
To download the conversion utility or the upgrade image, click this link to browse to the Cisco IOS Software Center on Cisco.com:
On the Cisco IOS Software Center page, enter your Cisco.com username and password to use the Feature Navigator or the Cisco IOS Upgrade Planner, or click Wireless Software to go to the Wireless LAN Software page. Download the conversion utility or the upgrade image for 350 or 1200 series access points. You can also download instructions for using the utility and the image.
Some Fields Not Updated During Upgrade to IOS Software
When you upgrade an access point to run Cisco IOS software, some fields that are reported in the console messages during the upgrade are blank or are populated with zeros. However, blank or zero fields are normal after a successful upgrade, because 350 and 1200 series access points do not support that information. This example shows fields that might appear blank or populated with zeros:32K bytes of flash-simulated non-volatile configuration memory.Base Ethernet MAC Address: 00:05:9A:38:42:91Part Number: 0-0000-00PCA Assembly Number: 000-00000-00PCA Revision Number:PCB Serial Number:Top Assembly Part Number: 000-00000-00Top Assembly Serial Number:Top Revision Number:Product/Model Number: AIR-AP352-IOS-UPGRD
No new features are introduced in Cisco IOS Release 12.3(8)JEA3.
This section contains information you should keep in mind when installing 350, 1100, 1130, 1200, 1230, 1240 series access points, and 1300 series outdoor access point/bridges.
Installation in Environmental Air Space
This section provides information on installing 1100 and 1200 series access points in environmental air space, such as above suspended ceilings.
Cisco Aironet 1100, 1130, 1200, and 1240 Series Access Points provide adequate fire resistance and low smoke-producing characteristics suitable for operation in a building's environmental air space, such as above suspended ceilings, in accordance with Section 300-22(C) of the National Electrical Code (NEC) and Sections 2-128, 12-010(3) and 12-100 of the Canadian Electrical Code, Part 1, C22.1.
Caution The power injector does not provide fire resistance and low smoke-producing characteristics and is not intended for use in extremely high or low temperatures or in environmental air spaces such as above suspended ceilings.
Note If you plan to mount a 1200 series access point with a 5-GHz radio in an area subject to environmental air space, Cisco recommends that you mount the access point horizontally so that its antennas point down. Doing so ensures that the access point complies with regulatory requirements for environmental air space with the 5-GHz radio installed.
This section describes issues you should consider before applying power to an access point.
Caution The operational voltage range for 1100 series access points is 35 to 57 VDC, and the nominal voltage is 48 VDC. Voltage higher than 60 VDC can damage the equipment.
Caution The nominal voltage for 1200 series access points is 48 VDC, and the access point is operational up to 60 VDC. Voltage higher than 60 VDC can damage the equipment.
Caution Cisco Aironet power injectors are designed for use with Cisco Aironet access points and bridges only. Do not use the power injector with any other Ethernet-ready device. Using the power injector with other Ethernet-ready devices can damage the equipment.
Use Only One Power Option
You cannot provide redundant power to 1100, 1130, and 1200 series access points with both DC power to its power port and inline power from a patch panel or powered switch to the access point's Ethernet port. If you apply power to the access point from both sources, the switch or power patch panel might shut down the port to which the access point is connected. Figure 2 shows the power configuration that can shut down the port on the patch panel or powered switch.
Figure 2 Improper Power Configuration Using Two Power Sources
Configuring Power for 1130 and 1240 Access Points
The 1130 and 1240 access points disable the radio interfaces when the unit senses that the power source to which it is connected does not provide enough power. Depending on your power source, you might need to enter the power source type in the access point configuration. Use the System Software: System Configuration page on the web-browser interface to select a power option. Figure 3 shows the System Power Settings section of the System Configuration page.
Figure 3 Power Options on the System Software: System Configuration Page
Using the AC Power Adapter
If you use the AC power adapter to provide power to the access point, you do not need to adjust the access point configuration.
Using a Switch Capable of IEEE 802.3af Power Negotiation
If you use a switch to provide Power over Ethernet (PoE) to the access point and the switch supports the IEEE 802.3af power negotiation standard, select Power Negotiation on the System Software: System Configuration page.
Using a Switch That Does Not Support IEEE 802.3af Power Negotiation
If you use a switch to provide Power over Ethernet (PoE) to the access point and the switch does not support the IEEE 802.3af power negotiation standard, select Pre-Standard Compatibility on the System Software: System Configuration page.
Using a Power Injector
If you use a power injector to provide power to the access point, select Power Injector on the System Software: System Configuration page and enter the MAC address of the switch port to which the access point is connected.
Operating 5-GHz Radio Requires Power Injector, Power Module, or Catalyst 3550-24 PWR Switch
The 1200 series power injector and the 1200 series power module support operation of the 5-GHz radio in the access point. Currently, the Catalyst 3550-24 PWR switch supports power for both the 2.4-GHz radio and the 5-GHz radio. Other switches and power patch panels might not provide enough power for the 5-GHz radio.
Access Point Requires 1200 Series Universal Power Supply and Power Injector
If you use a power injector or a power module to provide power to a 1200 series access point, you must use a 1200 series universal power supply. If you need to use a power injector to inject power into the access point's Ethernet port, you must use a 1200 series power injector.
Unpowered 1100 Series Access Points Cause Loopback When Connected to Switches Without Loopback Detection
When you connect an unpowered 1100 series access point to a switch without loopback detection, the access point causes a loopback. To avoid this problem, make sure loopback detection is enabled on the switch to which the access point is connected. If your switch does not have loopback detection, disconnect the access point from the switch when the access point power is off.
For instructions on the proper installation and grounding of external antennas for 1200, and 1240 series access points, refer to the National Fire Protection Association's NFPA 70, National Electrical Code, Article 810, and the Canadian Standards Association's Canadian Electrical Code, Section 54.
Warning Do not install 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.
This section describes important information about the access point.
CCKM and Fast Roaming on Cisco 7921/7925 IP Phones
When a 7921 or 7925 wireless associates to an access point in a WDS with CCKM, it cannot fast roam because call admission control is not enabled. To work around this issue you must enable admission control by issuing the admit-traffic command in the access point SSID configuration as shown in the following example:dot11 ssid voice vlan 21 authentication open eap eap_methods authentication network-eap eap_methods authentication key-managemenet wpa cckm admit-traffic
DFS Not Supported on Certain 1130 Series Access Points
1130 series access points with FCC Certification Number (LDK102054) do not support dynamic frequency selection (DFS) on channels 52 to 64 and 100 to 140 in the US and Canada. The FCC Certification Number (also called FCC ID number) is shown on the product label on the bottom of the unit. Only access points with LDK102054E on the product label can support DFS in the US and Canada.
Layer 3 Not supported with NAC for MBSSID
Layer 3 is not supported with NAC for MBSSID in this release.
DFS Enabled by Default on 5-GHz Radios in North America
In this release, Dynamic Frequency Selection (DFS) is automatically enabled on 5-GHz radios configured for use in North America. The 5-GHz radios use DFS to detect radar signals and avoid interfering with them. Radios configured for use in Europe and Singapore also use DFS. Other regulatory domains do not use DFS. Refer to the "DFS Automatically Enabled on Some 5-GHz Radio Channels in North America" section for detailed information.
Change to Default IP Address Behavior
Cisco IOS Releases 12.3(2)JA and later change the default behavior of access points requesting an IP address from a DHCP server:
•When you connect a 350, 1130, 1200, 1230, 1240 series access point, or a 1300 series outdoor access point/ridge with a default configuration to your LAN, the access point requests an IP address from your DHCP server and, if it does not receive an address, continues to send requests indefinitely.
•When you connect an 1100 series access point with a default configuration to your LAN, the 1100 series access point makes several attempts to get an IP address from the DHCP server. If it does not receive an address, it assigns itself the IP address 10.0.0.1 for five minutes. During this five-minute window, you can browse to the default IP address and configure a static address. If after five minutes the access point is not reconfigured, it discards the 10.0.0.1 address and reverts to requesting an address from the DHCP server. If it does not receive an address, it sends requests indefinitely. If you miss the five-minute window for browsing to the access point at 10.0.0.1, you can power-cycle the access point to repeat the process.
Save Interface Level Configuration Before Upgrading to Releases 12.3(8)JEA3 or Later
If the access points have SSIDs configured at the interface level (rather than at the global level), before upgrading to Cisco IOS Release 12.3(7)JA and above, upgrade to Cisco IOS Release 12.3(4)JA, save the configurations and then upgrade to Release 12.3(8)JEA3. This procedure must be followed to make sure that the SSID configurations are converted from the interface level to global level.
Changes to the Default Configuration—Radios Disabled and No Default SSID
In this release, the radio or radios are disabled by default, and there is no default SSID. You must create an SSID and enable the radio or radios before the access point will allow wireless associations from other devices. These changes to the default configuration improve the security of newly installed access points.
Clients Using WPA/WPA2 and Power Save May Fail to Authenticate
Certain clients using WPA/WPA2 key management and power save may take many attempts to authenticate or, in some cases, fail to authenticate. Any SSID defined to use authentication key-management wpa, coupled with clients using power save mode and authenticating using WPA/WPA2 may experience this problem.
A hidden configure level command, dot11 wpa handshake timeout, can be used to increase the timeout between sending the WPA key packets from the default value (100 ms) to a value between 101 and 2000 ms. The command stores its value in the configuration across device reloads.
Default Username and Password Are Cisco
When you open the access point interface, you must enter a username and password. The default username for administrator login is Cisco, and the default password is Cisco. Both the username and password are case sensitive.
Some Client Devices Cannot Associate When QoS Is Configured
Some wireless client devices, including Dell Axim handhelds and Hewlett-Packard iPaq HX4700 handhelds, cannot associate to an access point when the access point is configured for QoS. To allow these clients to associate, disable QoS on the access point. You can use the QoS Policies page on the access point GUI to disable QoS, or enter this command on the CLI:
ap(config-if)#no dot11 qos mode
Some Devices Disassociate When Multiple BSSIDs Are Added or Deleted
Devices on your wireless LAN that are configured to associate to a specific access point based on the access point MAC address (such as client devices, repeaters, hot standby units, or workgroup bridges) might lose their association when you add or delete a multiple BSSID. When you add or delete a multiple BSSID, check the association status of devices configured to associate to a specific access point. If necessary, reconfigure the disassociated device to use the BSSID's new MAC address.
Enabling MBSSIDs Without VLANs Disables Radio Interface
If you use the mbssid configuration interface command to enable multiple BSSIDs on a specific radio interface but VLANs are not configured on the access point, the access point disables the radio interface. To re-enable the radio, you must shut down the radio, disable multiple BSSIDs, and re-enable the radio. This example shows the commands you use to re-enable the radio:AP1134(config)# interface d1AP1134(config-if)# shutAP1134(config-if)# no mbssidAP1134(config-if)# no shut
After you re-enable the radio, you can enable VLANs on the access point and enable multiple BSSIDs.
Cannot Set Channel on DFS-Enabled Radios in Some Regulatory Domains
Access points with 5-GHz radios configured at the factory for use in Europe, Singapore, Korea, Japan, Taiwan, and Israel now comply with regulations that require radio devices to use Dynamic Frequency Selection (DFS) to detect radar signals and avoid interfering with them. You cannot manually set the channel on DFS-enabled radios configured for these regulatory domains.
Cisco 7920 Phones Require Firmware Version 1.09 or Later When Multiple BSSIDs Are Enabled
When multiple BSSIDs are configured on the access point, Cisco 7920 wireless IP phones must run firmware version 1.09 or later.
AIR-RM21A/AIR-RM22A Radio Modules Usually Set to Max Transmit Power
AIR-RM21A and AIR-RM22A radio modules measure transmit power in decibels per milliwatt (dBm), but earlier versions of 802.11a radios in Cisco Aironet access points measure power in milliwatts (mW). Because power settings in mW do not translate directly to settings in dBm, the access point usually uses the default power setting of maximum when you install a new AIR-RM21A or AIR-RM22A radio module.
Table 1 lists 802.11a transmit power settings in mW and the power settings that the access point assigns to a new radio module.
Table 1 Transmit Power Settings Assigned to New Radio Modules
Power Settings in mW Power Setting Assigned to New Radio Module
5 dBm (approximately 3 mW)
maximum (17 dBm)
GRE Tunnelling Through WLSM Sometimes Requires MTU Setting Adjustments
If client devices on your wireless LAN cannot use certain network applications or cannot browse to Internet sites, you might need to adjust the MTU setting on the client devices or other network devices. For more information, refer to the Tech Note at this URL:
TACACS+ and DHCP IP Address Sometimes Locks Out Administrators
When you configure an access point for TACACS+ administration and to receive an IP address from the DHCP server, administrators might be locked out of the access point after it reboots if the administrator does not have a local username and password configured on the access point. This issue does not affect access points configured with a static IP address. Administrators who have been locked out must regain access by using the to reset the unit to default settings.
Access Points Do Not Support Loopback Interface
You must not configure a loopback interface on the access point.
Caution Configuring a loopback interface might generate an IAPP GENINFO storm on your network and disrupt network traffic.
Non-Cisco Aironet 802.11g Clients Might Require Firmware Upgrade
Some non-Cisco Aironet 802.11g client devices require a firmware upgrade before they can associate to the 802.11g radio in the access point. If your non-Cisco Aironet 802.11g client device does not associate to the access point, download and install the latest client firmware from the manufacturer's website.
Throughput Option for 802.11g Radio Blocks Association by 802.11b Clients
When you configure the 802.11g access point radio for best throughput, the access point sets all data rates to basic (required). This setting blocks association from 802.11b client devices. The best throughput option appears on the web-browser interface Express Setup and Radio Settings pages and in the speed CLI configuration interface command.
Transmit Power Set to Maximum When You Install 802.11g Radio
When you replace the 802.11b radio in a 1200 series access point with an 802.11g radio, the 802.11g radio is set to the maximum transmit power allowed in your regulatory domain regardless of the power setting configured on the 802.11b radio. After you install the 802.11g radio and the access point reboots, configure the 802.11g radio to the preferred transmit power.
Use Auto for Ethernet Duplex and Speed Settings
Cisco recommends that you use auto, the default setting, for both the speed and duplex settings on the access point Ethernet port. When your access point receives inline power from a switch, any change in the speed or duplex settings that resets the Ethernet link reboots the access point. If the switch port to which the access point is connected is not set to auto, you can change the access point port to half or full to correct a duplex mismatch and the Ethernet link is not reset. However, if you change from half or full back to auto, the link is reset and, if your access point receives inline power from a switch, the access point reboots.
Note The speed and duplex settings on the access point Ethernet port must match the Ethernet settings on the port to which the access point is connected. If you change the settings on the port to which the access point is connected, change the settings on the access point Ethernet port to match.
Use force-reload Option with archive download-sw Command
When you upgrade access point or bridge system software by entering the archive download-sw command on the CLI, you must use the force-reload option. If the access point or bridge does not reload the Flash after the upgrade, the pages in the web-browser interface might not reflect the upgrade. This example shows how to upgrade system software successfully using the archive download-sw command:AP# archive download-sw /force-reload /overwrite tftp://10.0.0.1/image-name
Radio MAC Address Appears in ACU
When a Cisco Aironet client device associates to an access point running IOS software, the access point MAC address that appears on the Status page in the Aironet Client Utility (ACU) is the MAC address for the access point radio. The MAC address for the access point Ethernet port is printed on the label on the back of the access point.
Radio MAC Address Appears in Access Point Event Log
When a client device roams from an access point (such as access point alpha) to another access point (access point bravo), a message appears in the event log on access point alpha stating that the client roamed to access point bravo. The MAC address that appears in the event message is the MAC address for the radio in access point bravo. The MAC address for the access point Ethernet port is printed on the label on the back of the access point.
Mask Field on IP Filters Page Behaves the Same As in CLI
In Cisco IOS Release 12.2(8)JA and later, the mask that you enter in the Mask field on the IP Filters page in the access point GUI behaves the same way as a mask that you enter in the CLI. If you enter 255.255.255.255 as the mask, the access point accepts any IP address. If you enter 0.0.0.0, the access point looks for an exact match with the IP address that you entered in the IP Address field.
Repeater Access Points Running IOS Software Cannot Associate to Parent Access Points Running VxWorks
Repeater access points running Cisco IOS software cannot associate to parent access points that do not run IOS software (all 340 series access points, and 350 and 1200 series access points that have not been converted to run IOS software).
Repeater Access Points Cannot Be Configured as WDS Access Points
Repeater access points can participate in WDS but they cannot provide WDS. You cannot configure a repeater access point as a main WDS access point, and if a root access point becomes a repeater in fallback mode, it cannot provide WDS.
Crossover Cable Sometimes Needed When Ethernet Speed and Duplex Set to Fixed on 1100 Series Access Points
If you change the speed and duplex settings from auto to fixed on an 1100 series access point's Ethernet port, the auto-MDIX feature on the port is disabled. When auto-MDIX is disabled, you must determine whether to use a straight-through or a crossover cable to connect the access point Ethernet port to another device. If the Ethernet link goes down after you set the speed and duplex to fixed, try changing the Ethernet cable from crossover to straight-through or from straight-through to crossover.
Cannot Perform Link Tests on Non-Cisco Aironet Client Devices and on Cisco Aironet 802.11g Client Devices
The link test feature on the web-browser interface does not support non-Cisco Aironet client devices nor Cisco Aironet 802.11g client devices.
System Software Upgrade Sometimes Fails Using Microsoft Internet Explorer 5.01 SP2
A system software upgrade sometimes fails when you use Microsoft Internet Explorer 5.01 SP2 to upgrade system software using the TFTP Upgrade page in the web-browser interface. Use a later version of Microsoft Internet Explorer to perform HTTP system software upgrades, or use TFTP to upgrade system software. Click this URL to browse to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for complete instructions on performing software upgrades:
1100 Series Access Points with Boot Loader Version 12.2(4)JA Boot into Monitor Mode
When the Ethernet port is disabled on an 1100 series access point running boot loader version 12.2(4)JA, the access point boots into monitor mode when it reboots. To avoid this problem, connect the access point Ethernet port to one of the following:
•a wired LAN
•the Ethernet port on a PC
Remove power from the access point and reapply power to reboot the unit. When the access point senses an Ethernet connection, it boots normally.
Corrupt EAP Packet Sometimes Causes Error Message
During client authentication, the access point sometimes receives a corrupt EAP packet and displays this error message:Oct 1 09:00:51.642 R: %SYS-2-GETBUF: Bad getbuffer, bytes= 28165 -Process= "Dot11 Dot1x process", ipl= 0, pid= 32 -Traceback= A2F98 3C441C 3C7184 3C604C 3C5E14 3C5430 124DDC
You can ignore these messages.
When Cipher Is TKIP Only, Key Management Must Be Enabled
When you configure TKIP-only cipher encryption (not TKIP + WEP 128 or TKIP + WEP 40) on any radio interface or VLAN, every SSID on that radio or VLAN must be set to use WPA or CCKM key management. If you configure TKIP on a radio or VLAN but you do not configure key management on the SSIDs, client authentication fails on the SSIDs.
Cisco CKM Supports Spectralink Phones
Cisco CKM (CCKM) key management is designed to support voice clients that require minimal roaming times. To date, CCKM supports only Spectralink and Cisco 7920 Version 2.0 Wireless Phones. Other voice clients have not been tested with CCKM and are not supported.
Non-Cisco Aironet Clients Sometimes Fail 802.1x Authentication
Some non-Cisco Aironet client adapters do not perform 802.1x authentication to the access point unless you configure Open authentication with EAP. To allow both Cisco Aironet clients using LEAP and non-Cisco Aironet clients using LEAP to associate using the same SSID, you might need to configure the SSID for both Network EAP authentication and Open authentication with EAP.
Pings and Link Tests Sometimes Fail to Clients with Both Wired and Wireless Network Connections
When you ping or run a link test from an access point to a client device installed in a PC running Microsoft Windows 2000, the ping or link test sometimes fails when the client has both wired and wireless connections to the LAN. Microsoft does not recommend this configuration. For more information, refer to Microsoft Knowledge Base article 157025 at this URL:
Layer 3 Mobility Not Supported on Repeaters and Workgroup Bridges
Repeater access points and workgroup bridges cannot associate to an SSID configured for Layer 3 mobility. Layer 3 mobility is not supported on repeaters and workgroup bridges.
WLSM Required for Layer 3 Mobility
You must use a Wireless LAN Services Module (WLSM) as your WDS device in order to properly configure Layer 3 mobility. If you enable Layer 3 mobility for an SSID and your WDS device does not support Layer 3 mobility, client devices cannot associate using that SSID.
This section lists open and resolved caveats for Cisco IOS Release 12.3(8)JEA3.
These caveats are open in Cisco IOS Release 12.3(8)JEA3:
•CSCse34644—Shared authentication with a non-native vlan does not operate properly
•CSCsc83206—A nested repeater access point fails to notify radar detection
If radar is detected on a nested repeater in a nested repeater chain, no action is being taken by either the repeater or root/parent to notify the detection.
•CSCse34644—Shared authentication with a non-native vlan does not operate properly
•CSCsd69733—Hot standby access point cannot associate
The hot standby access point almost always fails to authenticate with the error cannot associate: Not standby parent (from incorrect mac address. The incorrect mac address is the mac address of another access point on the same network but not its parent device's mac address. In other words, the hot standby unit attempts to authenticate with an access point that is not it's parent and fails.
These caveats are resolved in Cisco IOS Release 12.3(8)JEA3:
•CSCdz55178—Router no longer crashes when a QoS profile name exceeds 32 characters
•CSCsj56438—Crafted EAP Response Identity packet no longer causes device to reload
•CSCsj66692—Data integrity traceback no longer observed in voip/ccapi/ccapi_call.c
•CSCsj81502—Output of the show pagp neighbor command no longer truncates
If You Need More Information
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 select caveats of any severity. Click this URL to browse to the Bug Toolkit:
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For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at http://www.cisco.com/cisco/web/support/index.html. Click Technology Support, choose Wireless from the menu on the left, and click Wireless LAN.
This section lists changes, errors, and omissions from user documentation for access points.
This section describes changes to access point and bridge documentation for this release.
DFS Automatically Enabled on Some 5-GHz Radio Channels in North America
Access points with 5-GHz radios configured at the factory for use in North America now comply with regulations that require radio devices to use Dynamic Frequency Selection (DFS) to detect radar signals and avoid interfering with them.
By default, the access point automatically uses DFS to set the operating frequency on 5-GHz radios. The access point randomly selects a frequency from among these frequencies:
•Frequencies 5.150 to 5.250 GHz (also known as the UNII-1 band)
•Frequencies 5.250 to 5.350 GHz (also known as the UNII-2 band)
•Frequencies 5.470 to 5.725 GHz (also known as the UNII-3 band)
•Frequencies 5.725 to 5.825 GHz (also known as the UNII-4 band)
Note By default, Band 3 (5.470 to 5.725 GHz) is disabled to allow backward compatibility with older clients. You must explicitly enable it in the Radio Settings page of the GUI or by using the dfs band block radio interface CLI command.
When DFS is enabled, the access point monitors its operating frequency for radar signals. If it detects radar signals on the channel, the access point takes these steps:
•Blocks new transmissions on the channel.
•Flushes the power-save client queues.
•Broadcasts an 802.11h channel-switch announcement.
•Disassociates remaining client devices.
•If participating in WDS, sends a DFS notification to the active WDS device that it is leaving the frequency.
•Randomly selects a different 5-GHz channel.
•Scans the new channel for radar signals for 60 seconds.
•If there are no radar signals on the new channel, enables beacons and accepts client associations.
•If participating in WDS, sends a DFS notification of its new operating frequency to the active WDS device.
Blocking Channels from DFS Selection
You can block groups of channels to prevent the access point from selecting them when DFS is enabled. Use this configuration interface command to block groups of channels from DFS selection:
[no] dfs band     block
The 1, 2, 3, and 4 options designate blocks of channels:
•1—Specifies frequencies 5.150 to 5.250 GHz. This group of frequencies is also known as the UNII-1 band.
•2—Specifies frequencies 5.250 to 5.350 GHz. This group of frequencies is also known as the UNII-2 band.
•3—Specifies frequencies 5.470 to 5.725 GHz. By default, this group of channels is blocked from DFS selection.
•4—Specifies frequencies 5.725 to 5.825 GHz. This group of frequencies is also known as the UNII-3 band.
This is the command that appears in a default configuration:ap(config-if)# dfs band 3 block
This example shows how to prevent the access point from selecting frequencies 5.150 to 5.350 GHz during DFS:ap(config-if)# dfs band 1 2 block
This example shows how to unblock frequencies 5.150 to 5.350 for DFS:ap(config-if)# no dfs band 1 2 block
This example shows how to unblock all frequencies for DFS:ap(config-if)# no dfs band block
NAC Support for MBSSID
Networks must be protected from security threats, such as viruses, worms, and spyware. These security threats disrupt business, causing downtime and continual patching. Endpoint visibility and control is needed to help ensure that all wired and wireless devices attempting to access a network meet corporate security policies. Infected or vulnerable endpoints need to be automatically detected, isolated, and cleaned.
NAC is designed specifically to help ensure that all wired and wireless endpoint devices (such as PCs, laptops, servers, and PDAs) accessing network resources are adequately protected from security threats. NAC allows organizations to analyze and control all devices coming into the network. By ensuring that every endpoint device complies with corporate security policy and is running the latest and most relevant security protections, organizations can significantly reduce or eliminate endpoint devices as a common source of infection or network compromise.
WLANs need to be protected from security threats such as viruses, worms, and spyware. Both the NAC Appliance and the NAC Framework provide security threat protection for WLANs by enforcing device security policy compliance when WLAN clients attempt to access the network. These solutions quarantine non-compliant WLAN clients and provide remediation services to help ensure compliance.
Release 12.3(8)JEA3 provides NAC support for MBSSID. A client, based on its health (software version, virus version, and so on) is placed on a separate VLAN that is specified to download the required software to upgrade the client to the software versions required to access the network. Four VLANs are specified for NAC support, one of which is the normal VLAN where clients having the correct software version are placed. The other VLANs are reserved for specific quarantine action and all infected clients are placed on one of these VLANs until the client is upgraded.
Each SSID has up to 3 additional VLANs configured as "unhealthy" VLANs. Infected clients are placed on one of these VLANs, based on how the client is infected. When a client sends an association request, it includes its infected status in the request to the RADIUS server. The policy to place the client on a specific VLAN is provisioned on the RADIUS server.
When an infected client associates with an access point and sends its state to the RADIUS server, the RADIUS server puts it into one of the quarantine VLANs based on its health. This VLAN is sent in the RADIUS server Access Accept response during the dot1x client authentication process. If the client is healthy and NAC compliant, the RADIUS server returns a normal VLAN assignment for the SSID and the client is placed in the correct VLAN and BSSID.
Each SSID is assigned a normal VLAN, which is the VLAN on which healthy clients are placed. The SSID can also be configured to have up to 3 backup VLANs that correspond to the quarantine VLANs on which clients are placed based on their state of health. These VLANs for the SSID use the same BSSID as assigned by the MBSSID for the SSID.
The configured VLANs are different and no VLAN overlap within an SSID is allowed. Therefore, a VLAN can be specified once and cannot be part of 2 different SSIDs per interface.
Quarantine VLANs are automatically configured under the interface on which the normal VLAN is configured. A quarantine VLAN inherits the same encryption properties as that of the normal VLAN. VLANs have the same key/authentication type and the keys for the quarantine VLANs are derived automatically.
Dot11 sub-interfaces are generated and configured automatically along with the dot1q encapsulation VLAN (equal to the number of configured VLANs). The sub-interfaces on the wired side is also configured automatically along with the bridge-group configurations under the FastEthernet0 sub-interface.
When a client associates and the RADIUS server determines that it is unhealthy, the server returns one of the quarantine NAC VLANs in its RADIUS authentication response for dot1x authentication. This VLAN should be one of the configured backup VLANs under the client's SSID. If the VLAN is not one of the configured backup VLANs, the client is disassociated.
Data corresponding to the all the backup VLANs are sent and received using the BSSID that is assigned to the SSID. Therefore, all clients (healthy and unhealthy) listening to the BSSID corresponding the the SSID wake up. Based on the multicast key being used corresponding to the VLAN (healthy or unhealthy), packet decrypting takes place on the client. Wired side traffic is segregated because different VLANs are used, thereby ensuring that traffic from infected and uninfected clients do not mix.
A new keyword, backup, is added to the existing vlan <name> | <id> under dot11 ssid <ssid> as described below:vlan <name>|<id> [backup <name>|<id>, <name>|<id>, <name>|<id>
Configuring NAC for MBSSID
Note This feature supports only Layer 2 mobility within VLANs. Layer 3 mobility using network ID is not supported in this feature.
Note Before you attempt to enable NAC for MBSSID on your access points, you should first have NAC working properly. Figure 4 shows a typical network setup.
Figure 4 Typical NAC Network Setup
For additional information, see the documentation for deploying NAC for Cisco wireless networks.
Follow these steps to configure NAC for MBSSID on your access point:
Step 1 Configure your network as shown in Figure 4.
Step 2 Configure standalone access points and NAC-enabled client-EAP authentication.
Step 3 Configure the local profiles on the ACS server for posture validation.
Step 4 Configure the client and access point to allow the client to successful authenticate using EAP-FAST.
Step 5 Ensure that the client posture is valid.
Step 6 Verify that the client associates to the access point and that the client is placed on the unrestricted VLAN after successful authentication and posture validation.
A sample configuration is shown below.dot11 mbssid dot11 vlan-name engg-normal vlan 100 dot11 vlan-name engg-infected vlan 102 dot11 vlan-name mktg-normal vlan 101 dot11 vlan-name mktg-infected1 vlan 103 dot11 vlan-name mktg-infected2 vlan 104 dot11 vlan-name mktg-infected3 vlan 105! dot11 ssid engg vlan engg-normal backup engg-infected authentication open authentication network-eap eap_methods !dot11 ssid mktgvlan mktg-normal backup mktg-infected1, mktg-infected2, mktg-infected3 authentication open authentication network-eap eap_methods! interface Dot11Radio0!encryption vlan engg-normal key 1 size 40bit 7 482CC74122FD transmit-key encryption vlan engg-normal mode ciphers wep40 ! encryption vlan mktg-normal key 1 size 40bit 7 9C3A6F2CBFBC transmit-key encryption vlan mktg-normal mode ciphers wep40 ! ssid engg ! ssid mktg ! speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0 station-role root ! interface Dot11Radio0.100 encapsulation dot1Q 100 native no ip route-cache bridge-group 1 bridge-group 1 subscriber-loop-control bridge-group 1 block-unknown-source no bridge-group 1 source-learning no bridge-group 1 unicast-flooding bridge-group 1 spanning-disabled!interface Dot11Radio0.102 encapsulation dot1Q 102 no ip route-cache bridge-group 102 bridge-group 102 subscriber-loop-control bridge-group 102 block-unknown-source no bridge-group 102 source-learning no bridge-group 102 unicast-flooding bridge-group 102 spanning-disabled!interface FastEthernet0 no ip address no ip route-cache duplex auto speed auto!interface FastEthernet0.100 encapsulation dot1Q 100 native no ip route-cachebridge-group 1no bridge-group 1 source-learningbridge-group 1 spanning-disabled!interface FastEthernet0.102encapsulation dot1Q 102no ip route-cachebridge-group 102no bridge-group 102 source-learningbridge-group 102 spanning-disabled!
New IOS CLI Commands
No new IOS CLI commands are included in release 12.3(8)JEA3.
The command dot11 extension power native was omitted from the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points 12.3(8)JA and Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges 12.3(8)JA.
When enabled, the dot11 extension power native shifts the power tables the radio uses from the IEEE 802.11 tables to the native power tables. The radio derives the values for this table from the NativePowerTable and NativePowerSupportedTable of the CISCO-DOT11-1F-MIB. The Native Power tables were designed specifically to configure powers as low as -1dBm for Cisco Aironet radios that support these levels.
This section lists documents related to Cisco IOS Release 12.3(8)JEA and to 350, 1100, 1130AG, 1200, 1240AG, 1250 series access points, and 1300 series outdoor access point/bridges.
•Cisco Aironet Conversion Tool for Cisco IOS Software, 2.0 Administrator Guide for Windows
•Quick Start Guide: Cisco Aironet 350 Series Access Points
•Quick Start Guide: Cisco Aironet 1100 Series Access Points
•Quick Start Guide: Cisco Aironet 1130AG Series Access Points
•Quick Start Guide: Cisco Aironet 1200 Series Access Points Running Cisco IOS Software
•Quick Start Guide: Cisco Aironet 1240AG Series Access Points
•Quick Start Guide: Cisco Aironet 1300 Series Outdoor Access Point/Bridge
•Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
•Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges
•Hardware Installation Guide for Cisco Aironet 350 Series Access Points Running Cisco IOS Software
•Cisco Aironet 1100 Series Access Point Hardware Installation Guide
•Cisco Aironet 1130AG Series Access Point Hardware Installation Guide
•Cisco Aironet 1200 Series Access Point Hardware Installation Guide
•Cisco Aironet 1240AG Series Access Point Hardware Installation Guide
•Cisco Aironet 1300 Series Outdoor Access Point/Bridge Hardware Installation Guide
•Installation Instructions for Cisco Aironet Power Injectors
Obtaining Documentation and Submitting a Service Request
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