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Returning the Lightweight Access Point to Autonomous Mode - config

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Chapter 4 Troubleshooting 1240AG Series Lightweight Access Points Returning the Lightweight Access Point to Autonomous Mode Returning the Lightweight Access Point to Autonomous Mode You can return a lightweight access point to autonomous mode by loading a Cisco IOS release that supports autonomous mode (such as Cisco IOS Release 12.3(7)JA or earlier). If the access point is associated to a controller, you can use the controller to load the Cisco IOS release (refer to your controller documentation). If the access point is not associated to a controller, you can load the Cisco IOS release using TFTP. Using a Controller to Return the Access Point to Autonomous Mode Follow these steps to return a lightweight access point to autonomous mode using a controller: Step 1 Step 2 Step 3 Log into the CLI on the controller to which the access point is associated and enter this command: config ap tftp-downgrade tftp-server-ip-address filename access-point-name (where: a) tftp-server-ip-address is the IP address of the TFTP server b) filename is the full path and filename of the access point image file, such as D:/Images/c1240-k9w7-tar.123-7.JA.tar c) access-point-name is the name that identifies the access point on the ocntroller.) Wait until the access point reboots, as indicated by all LEDs turning green followed by the Status LED blinking green. After the access point reboots, reconfigure it using the access point GUI or the CLI. Using the MODE Button to Return the Access Point to Autonomous Mode Follow these steps to return a lightweight access point to autonomous mode using the access point MODE button and a TFTP server: Note The access point MODE button is enabled by default, but you need to verify that the MODE button is enabled (see the "MODE Button Setting" section on page 4-10). Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Set the static IP address of the PC on which your TFTP server software runs to an address between 10.0.0.2 and 10.0.0.30. Make sure that the PC contains the access point image file (such as c1240-k9w7-tar.123-7.JA.tar for a 1240 series access point) in the TFTP server folder and that the TFTP server is activated. Rename the access point image file in the TFTP server folder to c1240-k9w7-tar.default. Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable. Disconnect power from the access point. Press and hold the MODE button while you reconnect power to the access point. Hold the MODE button until the Radio LED turns red (approximately 20 to 30 seconds) and then release. OL-8371-05 Cisco Aironet 1240AG Series Access Point Hardware Installation Guide 4-9

Section	Page
Cisco Aironet 1240AG Series Access Point Hardware Installation Guide	1
Contents	3
Preface	9
Audience	9
Purpose	9
Organization	9
Conventions	10
Related Publications	12
Locating the Product Serial Number	13
Obtaining Documentation, Obtaining Support, and Security Guidelines	14
Overview	15
Product Terminology	15
Autonomous Access Points	15
Lightweight Access Points	16
Guidelines for Using Cisco Aironet Lightweight Access Points	16
Hardware Features	17
Single or Dual-Radio Operation	19
Antennas Supported	19
Ethernet Port	19
Console Port	19
LEDs	19
Power Sources	20
UL 2043 Certification	20
Anti-Theft Features	20
Network Examples with Autonomous Access Points	22
Root Access Point on a Wired LAN	23
Repeater Unit that Extends Wireless Range	24
Central Unit in an All-Wireless Network	25
Bridge Network with Wireless Clients	25
Point-to-Point Bridge Configuration	26
Workgroup Bridge Network	26
Network Example with Lightweight Access Points	27
Installing the Access Point	29
Safety Information	30
FCC Safety Compliance Statement	30
General Safety Guidelines	30
Warnings	30
Unpacking the Access Point	31
Package Contents	31
Basic Installation Guidelines	32
Controller Discovery Process for Lightweight Access Points	32
Deploying the Access Points on the Wireless Network	33
Access Point Layout and Connectors	34
Mounting Overview	35
Mounting on a Horizontal or Vertical Surface	37
Mounting Below a Suspended Ceiling	38
Mounting Above a Suspended Ceiling	39
Mounting Access Point on a Desktop or Shelf	42
Cable Security Bracket	42
Removing the Cable Security Bracket	43
Attaching the Access Point to the Mounting Plate	44
Securing the Access Point	45
Using a Security Cable	45
Securing the Access Point to the Mounting Plate	46
Connecting the Ethernet and Power Cables	48
Connecting to an Ethernet Network with an Inline Power Source	49
Connecting to an Ethernet Network with Local Power	50
Powering Up the Access Point	50
Troubleshooting 1240AG Series Autonomous Access Points	51
Checking the Autonomous Access Point LEDs	52
Checking Basic Settings	53
Default IP Address Behavior	54
Enabling the Radio Interfaces	54
SSID	54
WEP Keys	55
Security Settings	55
Low Power Condition	55
Intelligent Power Management	56
Inline Power Status Messages	57
Configuring Power Using the CLI	59
Issuing the Cisco IOS Command Using the CLI	60
Configuring the Access Point System Power Settings Using a Browser	61
Running the Carrier Busy Test	63
Running the Ping Test	64
Resetting to the Default Configuration	64
Using the MODE Button	65
Using the Web Browser Interface	65
Reloading the Access Point Image	66
Using the MODE Button	66
Web Browser Interface	67
Browser HTTP Interface	67
Browser TFTP Interface	68
Obtaining the Access Point Image File	69
Connecting to the Access Point Locally	70
Obtaining the TFTP Server Software	70
Troubleshooting 1240AG Series Lightweight Access Points	71
Guidelines for Using Cisco Aironet Lightweight Access Points	72
Using DHCP Option 43	72
Checking the Lightweight Access Point LEDs	73
Low Power Condition for Lightweight Access Points	75
Intelligent Power Management	75
Configuring Power Using Controller CLI Commands	76
Manually Configuring Controller Information Using the Access Point CLI	77
Configuring Controller Information	78
Clearing Manually Entered Controller Information	78
Manually Resetting the Access Point to Defaults	78
Returning the Lightweight Access Point to Autonomous Mode	79
Using a Controller to Return the Access Point to Autonomous Mode	79
Using the MODE Button to Return the Access Point to Autonomous Mode	79
MODE Button Setting	80
Obtaining the Autonomous Access Point Image File	80
Connecting to the Access Point Locally	81
Obtaining the TFTP Server Software	82
Translated Safety Warnings	83
Declarations of Conformity and Regulatory Information	85
Manufacturers Federal Communication Commission Declaration of Conformity Statement	86
VCCI Statement for Japan	87
Industry Canada	87
Canadian Compliance Statement	87
European Community, Switzerland, Norway, Iceland, and Liechtenstein	88
Declaration of Conformity with Regard to the 1999/5/EC (R&TTE Directive)	88
Declaration of Conformity for RF Exposure	91
Guidelines for Operating Cisco Aironet Access Points in Japan	92
Japanese Translation	92
English Translation	92
Administrative Rules for Cisco Aironet Access Points in Taiwan	93
Access Points with IEEE 802.11a Radios	93
Chinese Translation	93
English Translation	93
All Access Points	94
Chinese Translation	94
English Translation	94
Operation of Cisco Aironet Access Points in Brazil	95
Access Point Models	95
Regulatory Information	95
Portuguese Translation	95
English Translation	95
Declaration of Conformity Statements	96
Declaration of Conformity Statements for European Union Countries	96
Access Point Specifications	99
Channels and Maximum Power Levels	103
Console Cable Pinouts	105
Overview	106
Console Port Signals and Pinouts	106
Priming Lightweight Access Points Prior to Deployment	107
Configuring DHCP Option 43 for Lightweight Access Points	111
Overview	112
Configuring Option 43 for 1000 Series Access Points	113
Configuring Option 43 for 1100, 1130, 1200, 1240, and 1300 Series Lightweight Access Points	114
Glossary	115

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4-9

Cisco Aironet 1240AG Series Access Point Hardware Installation Guide

OL-8371-05

Chapter 4

Troubleshooting 1240AG Series Lightweight Access Points

Returning the Lightweight Access Point to Autonomous Mode

You can return a lightweight access point to autonomous mode by loading a Cisco IOS release that

supports autonomous mode (such as Cisco IOS Release 12.3(7)JA or earlier). If the access point is

associated to a controller, you can use the controller to load the Cisco IOS release (refer to your

controller documentation). If the access point is not associated to a controller, you can load the Cisco

IOS release using TFTP.

Using a Controller to Return the Access Point to Autonomous Mode

Follow these steps to return a lightweight access point to autonomous mode using a controller:

Step 1

Log into the CLI on the controller to which the access point is associated and enter this command:

config ap tftp-downgrade

tftp-server-ip-address filename access-point-name

(where:

tftp-server-ip-address

is the IP address of the TFTP server

filename

is the full path and filename of the access point image file, such as

D:/Images/

c1240-k9w7-tar.123-7.JA.ta

access-point-name

is the name that identifies the access point on the

ocntroller.)

Step 2

Wait until the access point reboots, as indicated by all LEDs turning green followed by the Status LED

blinking green.

Step 3

After the access point reboots, reconfigure it using the access point GUI or the CLI.

Using the MODE Button to Return the Access Point to Autonomous Mode

Follow these steps to return a lightweight access point to autonomous mode using the access point MODE

button and a TFTP server:

Note

The access point MODE button is enabled by default, but you need to verify that the MODE button is

enabled (see the

“MODE Button Setting” section on page 4-10

Step 1

Set the static IP address of the PC on which your TFTP server software runs to an address between

10.0.0.2 and 10.0.0.30.

Step 2

Make sure that the PC contains the access point image file (such as

c1240-k9w7-tar.123-7.JA.ta

r for a

1240 series access point) in the TFTP server folder and that the TFTP server is activated.

Step 3

Rename the access point image file in the TFTP server folder to

c1240-k9w7-tar.default.

Step 4

Connect the PC to the access point using a Category 5 (CAT5) Ethernet cable.

Step 5

Disconnect power from the access point.

Step 6

Press and hold the

MODE

button while you reconnect power to the access point.

Step 7

Hold the

MODE

button until the Radio LED turns red (approximately 20 to 30 seconds) and then

release.