Cisco Aironet 1240AG Series Access Point Hardware Installation Guide, OL-8371-05
Troubleshooting 1240AG Series Autonomous Access Points
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Troubleshooting 1240AG Series Autonomous Access Points

Table Of Contents

Troubleshooting 1240AG Series Autonomous Access Points

Checking the Autonomous Access Point LEDs

Checking Basic Settings

Default IP Address Behavior

Enabling the Radio Interfaces

SSID

WEP Keys

Security Settings

Low Power Condition

Intelligent Power Management

Inline Power Status Messages

Configuring Power Using the CLI

Issuing the Cisco IOS Command Using the CLI

Configuring the Access Point System Power Settings Using a Browser

Running the Carrier Busy Test

Running the Ping Test

Resetting to the Default Configuration

Using the MODE Button

Using the Web Browser Interface

Reloading the Access Point Image

Using the MODE Button

Web Browser Interface

Browser HTTP Interface

Browser TFTP Interface

Obtaining the Access Point Image File

Connecting to the Access Point Locally

Obtaining the TFTP Server Software


Troubleshooting 1240AG Series Autonomous Access Points


This chapter provides troubleshooting procedures for basic problems with the 1240AG series autonomous access point (AIR-AP1242AG or AIR-AP1242G). For the most up-to-date, detailed troubleshooting information, refer to the Cisco Technical Support and Documentation website at the following URL:

http://www.cisco.com/cisco/web/psa/default.html

Sections in this chapter include:

Checking the Autonomous Access Point LEDs

Checking Basic Settings

Low Power Condition

Running the Carrier Busy Test

Running the Ping Test

Resetting to the Default Configuration

Reloading the Access Point Image

Obtaining the Access Point Image File

Obtaining the TFTP Server Software

Checking the Autonomous Access Point LEDs

If your access point is not working properly, check the Status, Ethernet, and Radio LEDs on the 2.4 GHz end of the unit. You can use the LED indications to quickly assess the unit's status. Figure 3-1 shows the access point LEDs (for additional information refer to the Event Log using the access point browser interface).

Figure 3-1 Access Point LEDs

1

Ethernet LED

3

Status LED

2

Radio LED

 

The LED signals are listed inTable 3-1.

Table 3-1 LED Signals 

Message type
Ethernet LED
Radio LED

Status LED

Meaning

Boot loader status

Green

Green

Green

DRAM memory test ok.

Off

Blinking green

Blue-green

Initialize Flash file system.

Off

Green

Pink

Flash memory test ok.

Green

Off

Dark blue

Ethernet test ok.

Green

Green

Green

Starting Cisco IOS.

Association status

Light green

Normal operating condition, but no wireless client devices are associated with the unit.

Blue

Normal operating condition, at least one wireless client device is associated with the unit.

Operating status

Green

Ethernet link is operational.

Blinking green

Transmitting or receiving Ethernet packets.

Blinking green

Transmitting or receiving radio packets.

Blinking
dark blue

Software upgrade in progress

Boot loader warnings

Off

Off

Yellow

Ethernet link not operational.

Red

Off

Yellow

Ethernet failure.

Amber

Off

Yellow

Configuration recovery in progress
(Mode button pressed for 2 to 3 seconds).

Off

Red

Pink

Image recovery
(Mode button pressed for 20 to 30 seconds)

Blinking green

Blinking red

Blinking pink

Image recovery in progress and Mode button is released.

Boot loader errors

Red

Red

Red

DRAM memory test failure.

Off

Red

Blinking red and blue

Flash file system failure.

Off

Amber

Blinking red and blue-green

Environment variable (ENVAR) failure.

Amber

Off

Blinking red and yellow

Bad MAC address.

Red

Off

Blinking red and off

Ethernet failure during image recovery.

Amber

Amber

Blinking red and off

Boot environment error.

Red

Amber

Blinking red and off

No Cisco IOS image file.

Amber

Amber

Blinking red and off

Boot failure.

Cisco IOS errors

Blinking amber

Transmit or receive Ethernet errors.

Blinking amber

Maximum retries or buffer full occurred on the radio.

Red

Red

Amber

Software failure; try disconnecting and reconnecting unit power.

Amber

General warning, insufficient inline power (see the Low Power Condition section).


Checking Basic Settings

Mismatched basic settings are the most common causes of lost connectivity with wireless clients. If the access point does not communicate with client devices, check the following areas.

Default IP Address Behavior

When you connect a 1240 series access point running Cisco IOS Release 12.3(7)JA or later software 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 IP address, continues to send requests indefinitely.

Enabling the Radio Interfaces

In Cisco IOS Release 12.3(7)JA or later, the access point radios are disabled by default, and there is no default SSID. You must create an SSID and enable the 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. Refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on configuring the SSID.

To enable the radio interfaces, follow these instructions:


Step 1 Use your web-browser to access your access point.

Step 2 At the prompts, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive.

Step 3 When the Summary Status page displays, click Network Interfaces > Radio0-802.11G and the radio status page displays.

Step 4 Click Settings and the radio settings page displays.

Step 5 Click Enable in the Enable Radio field.

Step 6 Click Apply.

Step 7 Click Radio1-802.11A and the radio status page displays.

Step 8 Repeat Steps 3 to 5.

Step 9 Close your web-browser.


SSID

Wireless clients attempting to associate with the access point must use the same SSID as the access point. If a client device's SSID does not match the SSID of an access point in radio range, the client device will not associate.


Note In Cisco IOS Release 12.3(7)JA or later, there is no default SSID. You must configure an SSID before client devices can associate to the access point.


WEP Keys

The WEP key you use to transmit data must be set up exactly the same on your access point and any wireless devices with which it associates. For example, if you set WEP Key 3 on your client adapter to 0987654321 and select it as the transmit key, you must also set WEP Key 3 on the access point to exactly the same value. The access point does not need to use Key 3 as its transmit key, however.

Refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on setting the access point's WEP keys.

Security Settings

Wireless clients attempting to authenticate with your access point must support the same security options configured in the access point, such as EAP or LEAP, MAC address authentication, Message Integrity Check (MIC), WEP key hashing, and 802.1X protocol versions.

If a wireless client is unable to authenticate with your access point, contact the system administrator for proper security settings in the client adapter and for the client adapter driver and firmware versions that are compatible with the access point settings.


Note The access point MAC address that displays 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.


Low Power Condition


Warning This product must be connected to a Power over Ethernet (PoE) IEEE 802.3af compliant power source or an IEC60950 compliant limited power source. Statement 353

The access point can be powered from the 48-VDC power module or from an in-line power source. The access point supports the IEEE 802.3af power standard, Cisco Pre-Standard PoE protocol, and Cisco Intelligent Power Management for in-line power sources.

For full operation, the access point (powered device) requires 12.95 W (up to 15.4 W with 100 m
CAT 5 Ethernet cable). When the access point is being used in a PoE configuration, the power drawn from the power sourcing equipment (PSE), such as a switch or power injector, is higher by an amount dependent on the length of the interconnecting cable.

The power module and Cisco Aironet power injectors are capable of supplying the required power for full operation, but some inline power sources are not capable of supplying sufficient power. Also, some high-power inline power sources, might not be able to provide up to 15.4 W of power to all ports at the same time.


Note An 802.3af compliant switch (Cisco or non-Cisco) is capable of supplying sufficient power for full operation.



Note If your access point is connected to in-line power, do not connect the power module to the access point. Using two power sources on the access point might cause the access point to shut down to protect internal components and might cause the switch to shut down the port to which the access point is connected. If your access point shuts down, you must remove all power and reconnect only a single power source.


On power up, the access point is placed into low power mode (both radios are disabled), Cisco IOS software loads and runs, and power negotiation determines if sufficient power is available. If there is sufficient power then the radios are turned on; otherwise, the access point remains in low power mode with the radios disabled to prevent a possible over-current condition. In low power mode, the access point activates the Status LED low power error indication, displays a low power message on the browser and serial interfaces, and creates an event log entry (see the "Checking the Autonomous Access Point LEDs" section and "Inline Power Status Messages" section).

Intelligent Power Management

The access point requires 12.95 W of power (up to 15.4 W with 100 m CAT 5 Ethernet cable) for full power operation with both radios, but only needs 6.3 W of power when operating in low power mode with both radios disabled. To help avoid an over-current condition with low power sources and to optimize power usage on Cisco switches, Cisco developed Intelligent Power Management, which uses Cisco Discovery Protocol (CDP) to allow powered devices (such as your access point) to negotiate with a Cisco switch for sufficient power.

The access point supports Intelligent Power Management and as a result of the power negotiations, the access point will either enter full power mode or remain in low power mode with the radios disabled.


Note Independent of the power negotiations, the access point hardware also uses the 802.3af classification scheme to indicate the power required from the power source. However, the power source cannot report the power available to the access point unless the power source also supports Intelligent Power Management.


Some Cisco switches that are capable of supplying sufficient power require a software upgrade to support Intelligent Power Management. If the software upgrade is not desired, you can configure the access point to operate in pre-standard compatibility mode and the access point automatically enters full power mode if these Cisco switches are detected in the received CDP ID field.

When the access point determines that sufficient power is not available for full power operation, an error message is logged and the Status LED turns amber to indicate low power mode (see the "Checking the Autonomous Access Point LEDs" section and the "Inline Power Status Messages" section).


Tip If your switch is capable of supplying sufficient power for full operation but the access point remains in low-power mode, your access point or your switch (or both) might be misconfigured (see Table 3-2 and Table 3-3).


If your inline power source is not able to supply sufficient power for full operation, you should consider these options:

Upgrade to a higher-powered switch

Use a Cisco Aironet power injector on the switch port

Use the 48-VDC power module to locally power the access point

Inline Power Status Messages

These messages are logged on the console port by the access point to report the power condition:

%CDP_PD-4-POWER_OK: Full Power - AC_ADAPTOR inline power source—This message indicates the access point is using the power module and can support full-power operation.

%CDP_PD-4-POWER_OK: Full Power - NEGOTIATED inline power source—This message indicates the access point is operating at full power and has successfully negotiated for 12.95 W of power from a Cisco switch supporting Cisco Intelligent Power Management.

%CDP_PD-4-POWER_OK: Full Power - HIGH_POWER_CLASSIC inline power source—This message indicates the access point is operating at full power because it has been configured for pre-standard compatibility mode and has detected a Cisco switch that does not support Intelligent Power Management but is able to supply sufficient power to the access point.

%CDP_PD-4-POWER_OK: Full Power - INJECTOR_CONFIGURED_ON_SOURCE inline power source—This message indicates the access point is operating at full power because it is connected to a Cisco switch that supports Intelligent Power Management and the switch has been configured with the power inline never command.

%CDP_PD-4-POWER_OK: Full power - INJECTOR_CONFIGURED_ON_CURRENT_PORT inline power source—This message indicates the access point is operating at full power because it has been configured to expect a power injector on this port.

%CDP_PD-4-POWER_OK: Full Power - INJECTOR_DETECTED_PD inline power source—This message indicates the access point is operating at full power because it has detected a CDP packet from another Cisco powerable device (PD). The access point power is being supplied from a power injector or a non-Cisco power source because a Cisco power source does not transmit this type of CDP packet.

%CDP_PD-4-POWER_OK: Full Power - INJECTOR_DETECTED_MULTIPLE_MACS_ON_
HUB inline power source—This message indicates the access point is operating at full power because it has detected multiple Cisco devices. The access point power is being supplied from a power injector or a non-Cisco power source because a Cisco power source does not forward CDP packets.

%CDP_PD-4-POWER_OK: Full Power - NON_CISCO-NO_CDP_RECEIVED inline power source—This message indicates the access point is operating at full power because it has not received any CDP packets within the timeout period. This condition indicates your access point is connected to a non-Cisco power source.


Note To prevent possible over-current conditions, the power source must be an IEEE 802.3af compliant power source or an IEC60950 compliant limited power source.


%CDP_PD-2-POWER_LOW: All radios disabled - NEGOTIATED inline power source—This message indicates the access point is in low power mode with all radios disabled because the Cisco power source has indicated it is not capable of supplying sufficient power to the access point.


Note A Cisco power injector might be required.


%CDP_PD-2-POWER_LOW: All radios disabled - LOW_POWER_CLASSIC_NO_INJECTOR
_CONFIGURED <platform name> (<MAC address>). —This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access point.

The< platform name> indicates the CDP device detected by the access point. The <MAC address> indicates the MAC address of the CDP device, typically, the switch port.


Note A Cisco power injector might be required.


Following the low power status message, two extra messages are displayed on the console port or when using a Telnet session that identify the actions needed to resolve this low power problem:

Verify the required power injector is installed on this port: <platform name> (<Ethernet port>).

(where <platform name> indicates the CDP device detected by the access point and
<Ethernet port> indicates the Ethernet port of the CDP device.

If a power injector is installed, issue the command: power inline negotiation injector installed.

%CDP_PD-2-POWER_LOW: All radios disabled- LOW_POWER_CLASSIC_INJECTOR_
CONFIGURED_ON_ANOTHER_PORT <platform name> (<MAC address>)—This message indicates the access point is in low power mode with all radios disabled and has detected a CDP device that is unable to supply sufficient power to the access point. A power injector has been configured, but it is for another port. It is likely that the access point has been relocated and has not been reconfigured for a new power injector.

The <platorm name> indicates the CDP device detected by the access point. The <MAC address> indicates the MAC address of the CDP device, typically, the switch port.


Note A Cisco power injector might be required.


Following the low power status message, two extra messages are displayed when using the console port or a Telnet session that identify the actions needed to resolve this low power problem:

1. Verify the required power injector is installed on the new port: <platform name> (<Ethernet port>).

(where <platform name> indicates the CDP device detected by the access point and
<Ethernet port> indicates the Ethernet port of the CDP device.

2. If a power injector is installed, issue the command: power inline negotiation injector installed.

%CDP_PD-2-POWER_LOW: All radios disabled- HIGH_POWER_CLASSIC_NOT_ CONFIGURED inline power source <platform name> (<MAC address>)—This message indicates the access point is in low power mode with all radios disabled and has detected a Cisco switch that does not support Intelligent Power Management, but should be able to supply sufficient power. The access point must be configured for pre-standard compatibility.

The< platform name> indicates the Cisco platform detected by the access point. The <MAC address> indicates the MAC address of the switch port.


Note You need to upgrade the software on the Cisco switch to support Intelligent Power Management or configure the access point for pre-standard compatibility.


%CDP_PD-4-POWER_OK: Full power - INJECTOR_CONFIGURED_OVERRIDE_SAFETY inline power source —This message indicates the access point has been configured to override the inline power checks and a power injector is installed.


Caution When using the power inline negotiation injector override command, a power injector must always be installed to prevent a possible overload condition with an underpowered power source.

Configuring Power Using the CLI

Intelligent Power Management support is dependent on the version of software resident in the Cisco switch that is providing power to the access point. Each Cisco switch should be upgraded to support Intelligent Power Management. Until the software is upgraded, you can configure the access point to operate with older switch software using the following Cisco IOS CLI command:

[no] power inline negotiation {prestandard source |injector {installed | override | 
H.H.H}} 

(prestandard source indicates the Cisco switch does not support Intelligent Power 
Management. injector installed indicates a power injector is installed on the current 
switch port. injector override indicates a power injector is installed and the access 
point is configured to override the inline power checks. When you move the access point, 
H.H.H is used to specify the MAC address of the new switch port where the access point was 
moved. A MAC address of 0.0.0 is invalid.)

Caution When using the power inline negotiation injector override command, a power injector must always be installed to prevent a possible overload condition with an underpowered power source.


Note The power inline negotiation injector installed command will fail if CDP is disabled.


When using the power inline negotiation injector override command, you must use a power injector to prevent possibly overloading underpowered power sources.

You can use this Cisco IOS CLI command to inform the access point of the following:

The Cisco switch does not support Intelligent Power Management but should be able to supply sufficient power.

A power injector is being used to supply sufficient power and the Cisco switch does not support Intelligent Power Management.

The access point was moved to a new Cisco switch port and a power injector is being used to supply sufficient power.


Caution If the access point receives power through PoE, the output current of the power sourcing equipment (PSE) cannot exceed 400 mA per port. The power source must comply with IEEE802.3af or IEC60950 for limited power sources.


Note After completing your configuration changes, you must remove the serial console cable from the access point.


Table 3-2 Using Cisco IOS Commands

Power Source
Cisco IOS Commands
Access Point
Cisco Switch

AC power module

None required

power inline never

Cisco switch that supports Intelligent Power Management1

no power inline negotiation prestandard source

no power inline negotiation injector

power inline auto

Cisco switch that does not support Intelligent Power Management1

power inline negotiation prestandard source

no power inline negotiation injector

power inline auto

Power injector2 used with a Cisco switch that supports Intelligent Power Management1

None required3

power inline never4

Power injector2 used with a Cisco switch that does not support Intelligent Power Management1

no power inline negotiation prestandard source

power inline negotiation injector installed

power inline never

Power injector used with a non-Cisco switch

None required

-

802.3af compliant non-Cisco switches

None required

-

1 You should check the release notes for your Cisco power source to determine which Cisco IOS release supports Intelligent Power Management. Support for Intelligent Power Management might not be currently available for your Cisco power source.

2 Power injector must be AIR-PWRINJ3 or AIR-PWRINJ-FIB.

3 The Cisco switch uses Intelligent Power Management to inform the access point of the power injector being used.

4 Cisco switches that support Intelligent Power Management always configure the use of a power injector at the switch.


Issuing the Cisco IOS Command Using the CLI

Follow these steps to issue the Cisco IOS command for your power scenario:


Step 1 Connect a PC to the access point console port and use a terminal emulator to establish a session with the access point (refer to the "Connecting to the Access Point Locally" section).

Step 2 From the global configuration mode (refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points), enter the command below that applies to your power configuration (see Table 3-2):

power inline negotiation injector installed

no power inline negotiation injector

power inline negotiation prestandard source

no power inline negotiation prestandard source

Step 3 Enter the write memory command to save the setting to the access point memory.

Step 4 Enter the quit command to exit the terminal session.


Configuring the Access Point System Power Settings Using a Browser

You can also use your browser to set the access point System Power Settings.


Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.



Note When using the access point browser interface, you should disable your browser pop-up blocker.


Figure 3-2 shows the system power setting options and indicates the power status of the access point.

Figure 3-2 System Power Settings


Caution If the access point receives power through PoE, the output current of the power sourcing equipment (PSE) cannot exceed 400 mA per port. The power source must comply with IEEE802.3af or IEC60950 for limited power sources.

Table 3-3 lists the access point system power settings and the Cisco switch power commands for several power options.

Table 3-3 Access Point System Power Settings and Cisco Switch Commands 

Power Source
Access Point System Power Settings
Cisco Switch
Power Command

AC power module

Configuration changes are not required

power inline never

Cisco switch that supports Intelligent Power Management1

Power Settings:

Power Negotiation (selected)

Power Injector:

Installed on Port with MAC Address (unchecked)

power inline auto

Cisco switch that does not support Intelligent Power Management1

Power Settings:

Pre-standard Compatibility (selected)

Power Injector:

Installed on Port with MAC Address (unchecked)

power inline auto

Power injector2 used with a Cisco switch that supports Intelligent Power Management1

Power Settings:

Power Negotiation (selected)

Power Injector:

Installed on Port with MAC Address (unchecked)

power inline never3

Power injector2 used with a Cisco switch that does not support Intelligent Power Management1

Power Settings:

Power Negotiation (selected)

Power Injector:

Installed on Port with MAC Address (checked)

power inline never

Power injector used with a non-Cisco switch

Configuration changes are not required

-

802.3af compliant non-Cisco switches

Configuration changes are not required

-

1 You should check the release notes for your Cisco power source to determine which Cisco IOS release supports Intelligent Power Management. Support for Intelligent Power Management might not be currently available for your Cisco power source.

2 Power injector must be AIR-PWRINJ3 or AIR-PWRINJ-FIB.

3 Cisco switches that support Intelligent Power Management always configure the use of a power injector at the switch.


Perform these steps to configure your access point power settings using the browser interface:


Step 1 Obtain the access point IP address and browse to your access point.

Step 2 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive.

Step 3 Perform one of these operations:

a. When you browse to your access point operating in low-power mode, a Warning message displays indicating that all radios are disabled due to insufficient power. Click OK to jump to the System Power Settings located on the System Software > System Configuration page.

b. When you browse to your access point operating in full-power mode, choose System Software > System Configuration.

Step 4 Choose one of these Power Settings options (see Figure 3-2):

a. If your Cisco switch supports Intelligent Power Management negotiations, choose Power Negotiation.

b. If your Cisco switch does not support Intelligent Power Management negotiations, choose Pre-standard Compatibility.

c. If you are using a non-Cisco switch, changes to the power settings are not required.

Step 5 If you are using a power injector with a Cisco switch, choose one of these Power setting options (see Figure 3-2):

a. If your Cisco switch supports Intelligent Power Management negotiations, uncheck Installed on Port with MAC address.

b. If your Cisco switch does not support Intelligent Power Management, check Installed on Port with MAC address and ensure the MAC address for your switch port is displayed in the MAC address field. The HHHH.HHHH.HHHH indicates the MAC address contains 12 hexadecimal digits.


Note The MAC address field is not case-sensitive.


Step 6 Click Apply and a message displays indicating that you should disable pop-up blockers before proceeding.

Step 7 Click OK to continue. Your access point reboots and your power settings are configured in the access point.


Note You might have to refresh your browser page to obtain the latest browser page that indicates your radios are enabled.



Running the Carrier Busy Test

You can use the carrier busy test to determine the least conjested channel for a radio interface (802.11g or 802.11a). You should typically run the test several times over several days to obtain the best results and to avoid temporary activity spikes.


Note The carrier busy test is primarily used for single access points or bridge environments. For sites with multiple access points, a site survey is typically performed to determine the best operation location and operating frequency for the access points.



Note All associated clients on the selected radio will be deassociated during the 6 to 8 seconds needed for the carrier busy test.


Perform these steps to activate the carrier busy test:


Step 1 Use your web browser to access the access point browser interface.

Step 2 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive.

Step 3 Click Network Interfaces and the Network Interface Summary page displays.

Step 4 Choose the radio interface experiencing problems by clicking Radio0-802.11G or Radio1-802.11A. The respective radio status page displays.

Step 5 Click the Carrier Busy Test tab and the Carrier Busy Test page displays

Step 6 Click Start to begin the carrier busy test.

When the test completes, the results are displayed on the page. For each of the channel center frequencies, the test produces a value indicating the percentage of time that the channel is busy.


Running the Ping Test

You can use the ping test to evaluate the link to and from an associated wireless device. The ping test provides two modes of operation:

a. Performs a test using a specified number of packets and then displays the test results.

b. Performs a test that continuously operates until you stop the test and then displays the test results.

Follow these steps to activate the ping test:


Step 1 Use your web browser to access the access point browser interface.

Step 2 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive.

Step 3 Click Association and the main association page displays.

Step 4 Click the MAC address of an associated wireless device and the Statistics page for that device displays.

Step 5 Click the Ping/Link Test tab and the Ping/Link Test page displays.

Step 6 If you want to specify the number of packets to use in the test, follow these steps:

a. Enter the number of packets in the Number of Packets field

b. Enter the packet size in the Packet Size field.

c. Click Start.

Step 7 If you want to use a continuous test, follow these steps:

a. Enter the packet size in the Packet Size field.

b. Click Start to activate the test.

c. Click Stop to stop the test.

When the test has completed, the test results are displayed at the bottom of the page. You should check for any lost packets that can indicate a problem with the wireless link. For best results, you should also perform this test several times.


Resetting to the Default Configuration

If you forget the password that allows you to configure the access point, you may need to completely reset the configuration. You can use the MODE button on the access point or the web-browser interface.


Note The following steps reset all configuration settings to factory defaults, including passwords, WEP keys, the IP address, and the SSID.


Using the MODE Button

Follow these steps to delete the current configuration and return all access point settings to the factory defaults using the MODE button:


Step 1 Disconnect power (the power jack for external power or the Ethernet cable for in-line power) from the access point.

Step 2 Press and hold the MODE button while you reconnect power to the access point.

Step 3 Hold the MODE button until the Ethernet LED turns an amber color (approximately 2 to 3 seconds), and release the button.

Step 4 After the access point reboots, you must reconfigure the access point by using the Web browser interface, the Telnet interface, or Cisco IOS commands.


Note The access point is configured with the factory default values including the IP address (set to receive an IP address using DHCP).



Using the Web Browser Interface

Follow these steps to delete the current configuration and return all access point settings to the factory defaults using the web browser interface.


Step 1 Open your Internet browser.


Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.



Note When using the access point browser interface, you should disable your browser pop-up blocker.


Step 2 Enter the access point's IP address in the browser address line and press Enter. An Enter Network Password page displays.

Step 3 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive. The Summary Status page displays.

Step 4 Click System Software and the System Software page displays.

Step 5 Click System Configuration and the System Configuration page displays.

Step 6 Click the Reset to Defaults button.


Note If the access point is configured with a static IP address, the IP address does not change.


Step 7 After the access point reboots, you must reconfigure the access point by using the Web browser interface, the Telnet interface, or Cisco IOS commands.


Reloading the Access Point Image

If your access point has a firmware failure, you must reload the complete access point image file using the Web browser interface or by using the MODE button. You can use the browser interface if the access point firmware is still fully operational and you want to upgrade the firmware image. However, you can use the MODE button when the access point has a corrupt firmware image.

Using the MODE Button

You can use the MODE button on the access point to reload the access point image file from an active Trivial File Transfer Protocol (TFTP) server on your network or on a PC connected to the access point Ethernet port.


Note If your access point experiences a firmware failure or a corrupt firmware image, indicated by the Status LED turning an amber color, you must reload the image from a connected TFTP server.



Note This process resets all configuration settings to factory defaults, including passwords, WEP keys, the access point IP address, and SSIDs.


Follow these steps to reload the access point image file:


Step 1 The PC you intend to use must be configured with a static IP address in the same subnet as the access point.

Step 2 Place a copy of the access point image file (such as c1240-k9w7-tar.123-8.JA.tar) into the TFTP server folder on your PC. For additional information, refer to the "Obtaining the Access Point Image File" and "Obtaining the TFTP Server Software" sections.

Step 3 Rename the access point image file in the TFTP server folder to c1240-k9w7-tar.default.

Step 4 Activate the TFTP server.

Step 5 If using in-line power, use a Category 5 (CAT5) Ethernet cable to connect your PC to the To Network Ethernet connector on the power injector.

Step 6 Disconnect power (the power jack for external power or the Ethernet cable for in-line power) from the access point.

Step 7 Press and hold the MODE button while you reconnect power to the access point.

Step 8 Hold the MODE button until the Radio LED turns a red color (approximately 20 to 30 seconds), and release the MODE button.

Step 9 After the access point reboots, you must reconfigure the access point by using the Web interface, the Telnet interface, or Cisco IOS commands.


Web Browser Interface

You can also use the Web browser interface to reload the access point image file. The Web browser interface supports loading the image file using HTTP or TFTP interfaces.


Note Your access point configuration is not changed when using the browser to reload the image file.


Browser HTTP Interface

The HTTP interface enables you to browse to the access point image file on your PC and download the image to the access point. Follow these instructions to use the HTTP interface:


Step 1 Open your Internet browser.


Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.



Note When using the access point browser interface, you should disable your browser pop-up blocker.


Step 2 Enter the access point's IP address in the browser address line and press Enter. An Enter Network Password page displays.

Step 3 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive. The Summary Status page displays.

Step 4 Click the System Software tab and then click Software Upgrade. The HTTP Upgrade page displays.

Step 5 Click the Browse button to locate the access point image file (such as c1240-k9w7-tar.123-8.JA.tar) on your PC.

Step 6 Click the Upload button.

For additional information, click the Help icon on the Software Upgrade page.


Browser TFTP Interface

The TFTP interface allows you to use a TFTP server on a network device to load the access point image file. Follow these instructions to use a TFTP server:


Step 1 Open your Internet browser.


Note The access point web-browser interface is fully compatible with Microsoft Internet Explorer version 6.0 on Windows 98 and 2000 platforms and with Netscape version 7.0 on Windows 98, Windows 2000, and Solaris platforms.



Note When using the access point browser interface, you should disable your browser pop-up blocker.


Step 2 Enter the access point's IP address in the browser address line and press Enter. An Enter Network Password page displays.

Step 3 At the prompt, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive. The Summary Status page displays.

Step 4 Click the System Software tab and then click Software Upgrade. The HTTP Upgrade page displays.

Step 5 Click the TFTP Upgrade tab.

Step 6 Enter the IP address for the TFTP server in the TFTP Server field.

Step 7 Enter the file name for the access point image file (such as c1240-k9w7-tar.123-8.JA.tar) in the Upload New System Image Tar File field. If the file is located in a subdirectory of the TFTP server root directory, include the relative path of the TFTP server root directory with the filename. If the file is located in the TFTP root directory, enter only the filename.

Step 8 Click the Upload button.

Step 9 When a message displays that indicates the upgrade is complete, click OK.

For additional information click the Help icon on the Software Upgrade page.


Obtaining the Access Point Image File

The access point image file can be obtained from the Cisco.com software center using these steps:


Step 1 Use your Internet browser to access the Cisco Software Center at the following URL:

http://www.cisco.com/cisco/software/navigator.html

Step 2 Click Wireless LAN Access > Aironet Access Points > Cisco Aironet 1240 AG Series.

Step 3 Click Cisco Aironet 1240AG Access Point.

Step 4 On the Enter Network Password window, enter your Cisco.com username and password and click OK.

Step 5 Click IOS.

Step 6 Choose the Cisco IOS release desired, such as 12.3.8.JA.

Step 7 Click WIRELESS LAN for your access point image file, such as c1240-k9w7-tar.123-8.JA.tar.

Step 8 On the Enter Network Password window, enter your Cisco.com username and password and click OK.

Step 9 On the Security Information window, click Yes to display non-secure items.

Step 10 On the Encryption Software Export Authorization page, read the information and check Yes or No to the question asking if the image is for use my you or your organization. Click Submit..

Step 11 If you checked No, enter the requested information and click Submit.

Step 12 Click Yes to continue.

Step 13 Click DOWNLOAD.

Step 14 Read and accept the terms and conditions of the Software Download Rules.

Step 15 On the Enter Network Password window, enter your Cisco.com username and password and click OK.

Step 16 Click Save to download your image file to your hard disk.

Step 17 Select the desired download location on your hard disk and click Save.


Connecting to the Access Point Locally

If you need to configure the access point locally (without connecting the access point to a wired LAN), you can connect a PC to its console port using a DB-9 to RJ-45 serial cable.


Caution Be careful when handling the access point, the bottom plate might be hot.


Note After completing your configuration changes, you must remove the serial cable from the access point.


Follow these steps to open the CLI by connecting to the access point console port:


Step 1 Connect a nine-pin, female DB-9 to RJ-45 serial cable to the RJ-45 console port on the access point and to the COM port on a computer. Figure 3-3 shows the console port location.

Figure 3-3 Console Port Location

1

Console port

 


Note The Cisco part number for the DB-9 to RJ-45 serial cable is AIR-CONCAB1200. Browse to http://www.cisco.com/go/marketplace to order a serial cable.


Step 2 Set up a terminal emulator on your PC to communicate with the access point. Use the following settings for the terminal emulator connection: 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control.

Step 3 At the prompts, enter the administrator username and password. The default username is Cisco and the default password is Cisco. The username and password are case sensitive.


Obtaining the TFTP Server Software

You can download TFTP server software from several web sites. Cisco recommends the shareware TFTP utility available at this URL:

http://tftpd32.jounin.net

Follow the instructions on the website for installing and using the utility.