Cisco Aironet 1240AG Series Access Point Hardware Installation Guide August 2005 Corporate Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS.
CONTENTS Preface i Audience Purpose i i Organization i Conventions ii Related Publications iv Obtaining Documentation iv Cisco.com iv Documentation CD-ROM v Ordering Documentation v Documentation Feedback v Obtaining Technical Assistance vi Cisco.
Contents CHAPTER 2 Installing the Access Point 2-1 Safety Information 2-2 FCC Safety Compliance Statement General Safety Guidelines 2-2 Warnings 2-2 2-2 Unpacking the Access Point 2-3 Package Contents 2-3 Basic Installation Guidelines 2-3 Before Beginning the Installation 2-4 Access Point Layout and Connectors Installation Summary Mounting Overview 2-4 2-5 2-6 Mounting on a Horizontal or Vertical Surface Mounting Below a Suspended Ceiling 2-8 Mounting Above a Suspended Ceiling 2-9 2-7 Moun
Contents Enabling the Radio Interfaces 3-8 Configuring Basic Security Settings 3-9 Configuring Basic Security Settings 3-10 Understanding Express Security Settings 3-11 Using VLANs 3-11 Express Security Types 3-11 Express Security Limitations 3-12 Using the Express Security Page 3-13 Finding the IP Address Using the CLI 3-13 Assigning an IP Address Using the CLI 3-14 Using a Telnet Session to Access the CLI CHAPTER 4 Using the Web-Browser Interface 3-14 4-1 Using the Web-Browser Interface for t
Contents CHAPTER Troubleshooting 6 6-1 Checking the Access Point LEDs 6-2 Checking Basic Settings 6-4 Default IP Address Behavior 6-4 Enabling the Radio Interfaces 6-5 SSID 6-5 WEP Keys 6-5 Security Settings 6-5 Low Power Condition 6-6 Intelligent Power Management 6-7 Inline Power Status Messages 6-7 Configuring Power Using the CLI 6-9 Issuing the Cisco IOS Command Using the CLI 6-10 Configuring the Access Point System Power Settings Using a Browser Running the Carrier Busy Test Running the Ping Test
Contents Department of Communications—Canada B-3 Canadian Compliance Statement B-3 European Community, Switzerland, Norway, Iceland, and Liechtenstein B-3 Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC Declaration of Conformity for RF Exposure B-5 Guidelines for Operating Cisco Aironet Access Points in Japan Japanese Translation B-6 English Translation B-6 Declaration of Conformity Statements B-6 B-7 Declaration of Conformity Statements for European Union Countries APPENDIX C
Contents Cisco Aironet 1240AG Series Access Point Hardware Installation Guide vi OL-7293-01
Preface Audience This guide is for the networking professional who installs and manages the Cisco Aironet 1240AG Series Access Point, hereafter referred to as the access point. To use this guide, you should have experience working with Cisco IOS software and be familiar with the concepts and terminology of wireless local area networks. Purpose This guide provides the information you need to install and configure basic settings for your access point.
Preface Conventions Chapter 4, “Using the Web-Browser Interface,” describes how to use the web-browser interface to configure the access point. Chapter 5, “Using the Command-Line Interface,” describes how to use the command-line interface (CLI) to configure the access point. Chapter 6, “Troubleshooting,” provides troubleshooting procedures for basic problems with the access point. Appendix A, “Translated Safety Warnings,” provides translations of the safety warnings that appear in this publication.
Preface Conventions Caution Warning Waarschuwing Means reader be careful. In this situation, you might do something that could result equipment damage or loss of data. This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents.
Preface Related Publications Aviso Este símbolo de aviso indica perigo. Encontra-se numa situação que lhe poderá causar danos fisicos. Antes de começar a trabalhar com qualquer equipamento, familiarize-se com os perigos relacionados com circuitos eléctricos, e com quaisquer práticas comuns que possam prevenir possíveis acidentes. (Para ver as traduções dos avisos que constam desta publicação, consulte o apêndice “Translated Safety Warnings” - “Traduções dos Avisos de Segurança”).
Preface Documentation Feedback Product Documentation DVD Cisco documentation and additional literature are available in the Product Documentation DVD package, which may have shipped with your product. The Product Documentation DVD is updated regularly and may be more current than printed documentation. The Product Documentation DVD is a comprehensive library of technical product documentation on portable media.
Preface Cisco Product Security Overview You can submit comments by using the response card (if present) behind the front cover of your document or by writing to the following address: Cisco Systems Attn: Customer Document Ordering 170 West Tasman Drive San Jose, CA 95134-9883 We appreciate your comments. Cisco Product Security Overview Cisco provides a free online Security Vulnerability Policy portal at this URL: http://www.cisco.com/en/US/products/products_security_vulnerability_policy.
Preface Cisco Product Security Overview Never use a revoked or an expired encryption key. The correct public key to use in your correspondence with PSIRT is the one linked in the Contact Summary section of the Security Vulnerability Policy page at this URL: http://www.cisco.com/en/US/products/products_security_vulnerability_policy.htm The link on this page has the current PGP key ID in use.
Preface Cisco Product Security Overview Locating the Product Serial Number The access point serial number is on the bottom of the housing (refer to Figure 1).
Preface Obtaining Technical Assistance Obtaining Technical Assistance Cisco Technical Support provides 24-hour-a-day award-winning technical assistance. The Cisco Technical Support & Documentation website on Cisco.com features extensive online support resources. In addition, if you have a valid Cisco service contract, Cisco Technical Assistance Center (TAC) engineers provide telephone support. If you do not have a valid Cisco service contract, contact your reseller.
Preface Obtaining Additional Publications and Information For a complete list of Cisco TAC contacts, go to this URL: http://www.cisco.com/techsupport/contacts Definitions of Service Request Severity To ensure that all service requests are reported in a standard format, Cisco has established severity definitions. Severity 1 (S1)—Your network is “down,” or there is a critical impact to your business operations. You and Cisco will commit all necessary resources around the clock to resolve the situation.
Preface Obtaining Additional Publications and Information • Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal at this URL: http://www.cisco.com/ipj • Networking products offered by Cisco Systems, as well as customer support services, can be obtained at this URL: http://www.cisco.com/en/US/products/index.
Preface Obtaining Additional Publications and Information Cisco Aironet 1240AG Series Access Point Hardware Installation Guide xii OL-7293-01
C H A P T E R 1 Overview Cisco Aironet 1240AG Series Access Points combine mobility and flexibility with the enterprise-class features required by networking professionals. With a management system based on Cisco IOS software, the 1240AG series access point is a Wi-Fi certified, wireless LAN transceiver. The access point contains two integrated radios: a 2.4-GHz radio (IEEE 802.11g) and a 5-GHz radio (IEEE 802.11a). You can configure the radios separately, using different settings on each.
Chapter 1 Overview Hardware Features Hardware Features Key hardware features of the access point include: • Dual-radio operation (see page 1-4) • Ethernet port (see page 1-4) • Console port (see page 1-5) • LEDs, (see page 1-5) • Multiple power sources (see page 1-5) • UL 2043 certification (see page 1-6) • Anti-theft features (see page 1-6) Refer to Appendix C, “Access Point Specifications,” for a list of access point specifications. Figure 1-2 shows the access point with antennas. 2.
Chapter 1 Overview Hardware Features Figure 1-2 illustrates the 2.4-GHz connector end of the access point. Access Point 2.4 GHz Connector End CONSOLE STATUS RADIO ETHERNET ETHERNET 48VDC MODE 2.4 GHz RIGHT/PRIMARY 2.4 GHz LEFT 1 2 3 4 5 6 7 8 135435 Figure 1-2 9 1 2.4-GHz antenna connector (left) 6 Console port (RJ-45) 2 Ethernet LED 7 Ethernet port (RJ-45) 3 Radio LED 8 48-VDC power port 4 Status LED 9 2.
Chapter 1 Overview Hardware Features Dual-Radio Operation The access point supports simultaneous radio operation using a 2.4-GHz 802.11g radio and a 5-GHz 802.11a radio. Each radio uses dual-diversity integrated antennas. The 5-GHz radio incorporates an Unlicensed National Information Infrastructure (UNII) radio transceiver operating in the UNII 5-GHz frequency bands. The 802.11g radio is called Radio0 and the 802.11a radio is called Radio1. Note In Cisco IOS Release 12.
Chapter 1 Overview Hardware Features Console Port The serial console port provides access to the access point’s command-line interface (CLI) using a terminal emulator program. The port is located on the end of the unit (see Figure 1-2). Use an RJ-45 to DB-9 serial cable to connect your computer’s COM port to the access point’s serial console port. (Refer to Appendix E, “Console Cable Pinouts,” for a description of the console port pinouts.
Chapter 1 Overview Hardware Features – Other inline power switches supporting the IEEE 802.3af inline power standard Note Some switches and patch panels might not provide enough power to operate the access point with both 2.4-GHz and 5-GHz radios. At power-up, if the access point is unable to determine that the power source can supply sufficient power, the access point automatically deactivates both radios to prevent an over-current condition.
Chapter 1 Overview Hardware Features Cable security bracket—The cable security bracket (see Figure 1-5) attaches to the mounting plate and covers the console port, Ethernet port, power port, and the mode button to prevent the installation or removal of the cables or the activation of the mode button. The cable security bracket is user removable prior to attaching the mounting plate to a ceiling or wall. • Access Point with Mounting Plate and Cable Security Bracket 135496 Figure 1-5 2.
Chapter 1 Overview Network Configuration Examples Network Configuration Examples This section describes the access point’s role in three common wireless network configurations. The access point’s default configuration is as a root unit connected to a wired LAN or as the central unit in an all-wireless network. The repeater role requires a specific configuration. Root Unit on a Wired LAN An access point connected directly to a wired LAN provides a connection point for wireless users.
Chapter 1 Overview Network Configuration Examples Repeater Unit that Extends Wireless Range An access point can be configured as a stand-alone repeater to extend the range of your infrastructure or to overcome an obstacle that blocks radio communication. The repeater forwards traffic between wireless users and the wired LAN by sending packets to either another repeater or to an access point connected to the wired LAN. The data is sent through the route that provides the best performance for the client.
Chapter 1 Overview Network Configuration Examples Central Unit in an All-Wireless Network In an all-wireless network, an access point acts as a stand-alone root unit. The access point is not attached to a wired LAN; it functions as a hub linking all stations together. The access point serves as the focal point for communications, increasing the communication range of wireless users. Figure 1-8 shows an access point in an all-wireless network.
Chapter 1 Overview Network Configuration Examples Workgroup Bridge Network The access point supports a workgroup bridge role to interconnect remote Ethernet workstations to the main LAN. The workgroup bridge can communicate with an access point (see Figure 1-10) or with a bridge (see Figure 1-11).
Chapter 1 Overview Network Configuration Examples Point-to-Point Bridge Configuration In a point-to-point bridge configuration, two bridges interconnect two LAN networks using a wireless communication link (see Figure 1-12). The bridge connected to the main LAN network is classified as a root bridge and the other bridge is classified as a non-root bridge.
C H A P T E R 2 Installing the Access Point This chapter describes the installation of the access point and includes these sections: • Safety Information, page 2-2 • Warnings, page 2-2 • Unpacking the Access Point, page 2-3 • Basic Installation Guidelines, page 2-4 • Before Beginning the Installation, page 2-4 • Installation Summary, page 2-5 • Mounting Overview, page 2-5 • Mounting on a Horizontal or Vertical Surface, page 2-7 • Mounting Below a Suspended Ceiling, page 2-8 • Mounting A
Chapter 2 Installing the Access Point Safety Information Safety Information Follow the guidelines in this section to ensure proper operation and safe use of the access point. FCC Safety Compliance Statement The FCC with its action in ET Docket 96-8 has adopted a safety standard for human exposure to radio frequency (RF) electromagnetic energy emitted by FCC certified equipment.
Chapter 2 Installing the Access Point Unpacking the Access Point Warning In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. Statement 332 Warning Do not work on the system or connect or disconnect cables during periods of lightning activity.
Chapter 2 Installing the Access Point Basic Installation Guidelines Basic Installation Guidelines Because the access point is a radio device, it is susceptible to interference that can reduce throughput and range. Follow these basic guidelines to ensure the best possible performance: • Install the access point in an area where metal structures such as shelving units, bookcases, filing cabinets, and metal gridwork do not block the radio signals to and from the access point.
Chapter 2 Installing the Access Point Installation Summary Figure 2-2 illustrates the 5-GHz connector end of the access point.
Chapter 2 Installing the Access Point Mounting Overview The access point ships with a detachable mounting plate and the necessary mounting hardware. Because it is detachable, you can use the mounting plate as a template to mark the positions of the mounting holes for your installation. You then install the mounting plate and attach the access point when you are ready. Refer to Figure 2-3 to locate the various mounting holes for the method you intend to use.
Chapter 2 Installing the Access Point Mounting on a Horizontal or Vertical Surface A mounting hardware kit is provided that contains the hardware and fasteners necessary to mount the access point. Refer to the Table 2-1 to identify the materials you need to mount your access point, then go to the section containing the specific mounting procedure. Table 2-1 Material Needed to Mount Access Point Mounting Method Materials Required In Kit Horizontal or vertical surface Four #8 x 1 in. (25.
Chapter 2 Installing the Access Point Mounting Below a Suspended Ceiling Mounting Below a Suspended Ceiling Note To comply with NEC code, a #10-24 grounding lug is provided on the mounting plate. You should review Figure 2-4 before beginning the mounting process.
Chapter 2 Installing the Access Point Mounting Above a Suspended Ceiling Follow these steps to mount your access point on a suspended ceiling: Step 1 Decide where you want to mount the access point. Step 2 Attach two T-rail clips to the suspended ceiling T-rail. Step 3 Use the mounting plate to adjust the distance between the T-rail clips so that they align with the holes in the mounting plate.
Chapter 2 Installing the Access Point Mounting Above a Suspended Ceiling It may be helpful to refer to Figure 2-5 before proceeding.
Chapter 2 Installing the Access Point Mounting Above a Suspended Ceiling The bracket mounting clip requires the use of two mounting clip holes on the mounting plate (see Figure 2-6). Figure 2-6 1 Mounting Plate Holes Bracket mounting clip holes Follow these steps to mount the access point above a suspended ceiling. Step 1 Insert the bracket mounting clip’s tab into the large hole on the access point mounting plate.
Chapter 2 Installing the Access Point Mounting Access Point on a Desktop or Shelf Step 3 Determine the location in the ceiling where you will mount the access point and remove an adjacent ceiling tile. Step 4 Orient the access point 2-GHz and 5-GHz antennas so that they are pointing down when mounted on the T-bar Box hanger. Step 5 Adjust the height of the T-bar box hanger to provide antenna clearance above the ceiling tile using the height adjusting screws (refer to Figure 2-5).
Chapter 2 Installing the Access Point Connecting the Ethernet and Power Cables Connecting the Ethernet and Power Cables The access point receives power through the Ethernet cable or an external power module. Figure 2-8 shows the power options for the access point.
Chapter 2 Installing the Access Point Connecting the Ethernet and Power Cables Note Some older switches and patch panels might not provide enough power to operate the access point. At power-up, if the access point is unable to determine that the power source can supply sufficient power, the access point automatically deactivates both radios to prevent an over-current condition.
Chapter 2 Installing the Access Point Powering Up the Access Point Connecting to an Ethernet Network with Local Power Caution Note Be careful when handling the access point; the bottom plate might be hot. If your access point is connected to in-line power, do not connect the power module to the access point.
Chapter 2 Installing the Access Point Cable Security Bracket Cable Security Bracket The access point mounting plate has an attached cable security bracket that covers the console port, Ethernet port, power port, and the mode button to prevent the installation or removal of the cables or the activation of the mode button. If desired, the cable security bracket can be removed prior to attaching the mounting plate to a ceiling or wall.
Chapter 2 Installing the Access Point Attaching the Access Point to the Mounting Plate Removing the Cable Security Bracket The cable security bracket (see Figure 2-11) is designed to help prevent someone from using the Mode button to reset the access point to default values or from using the serial console cable to access the access point’s CLI interface or from removing the Ethernet cable. If this security protection is not considered necessary, you can remove the cable security bracket.
Chapter 2 Installing the Access Point Securing the Access Point Note Step 2 If your access point is connected to Ethernet in-line power, do not connect the local 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.
Chapter 2 Installing the Access Point Securing the Access Point Using a Security Cable You can secure the access point by installing a standard security cable (such as the Kensington Notebook MicroSaver, model number 64068) into the access point security cable slot (see Figure 2-2). The security cable can be used with any of the mounting methods described in this guide. Follow these steps to install the security cable. Step 1 Loop the security cable around a nearby immovable object.
Chapter 2 Installing the Access Point Securing the Access Point Step 3 Place your padlock (user supplied) through the padlock hole in the security hasp’s padlock flange (see Figure 2-13). Security Hasp and Padlock 135442 Figure 2-13 2.4 GH z LEFT 2.4 GH z RIGH T / PR IMAR Y 1 2 1 Step 4 Note Security hasp 2 Pad lock Push the padlock into the recessed opening between the access point and the mounting plate.
C H A P T E R 3 Configuring the Access Point for the First Time This chapter describes how to configure basic settings on your access point for the first time. The contents of this chapter are similar to the instructions in the quick start guide that shipped with your access point.
Chapter 3 Configuring the Access Point for the First Time Before You Start Before You Start Before you install the access point, make sure you are using a computer connected to the same network as the access point, and obtain the following information from your network administrator: • A system name for the access point • The case-sensitive wireless service set identifiers (SSIDs) for your 802.11g and 8002.
Chapter 3 Configuring the Access Point for the First Time Obtaining and Assigning an IP Address Step 2 Enter the access point’s IP address in the browser address line and press Enter. An Enter Network Password window displays. Step 3 Enter your username in the User Name field. The default username is Cisco. Step 4 Enter the access point password in the Password field and press Enter. The default password is Cisco. The Summary Status page displays.
Chapter 3 Configuring the Access Point for the First Time Connecting to the Access Point Locally 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 Note Be careful when handling the access point, the bottom plate might be hot. After completing your configuration changes, you must remove the serial cable from the access point.
Chapter 3 Configuring the Access Point for the First Time Assigning Basic Settings Assigning Basic Settings After you determine or assign the access point’s IP address, you can browse to the access point’s Express Setup page and perform an initial configuration: Step 1 Open your web-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.
Chapter 3 Configuring the Access Point for the First Time Assigning Basic Settings Step 5 Click Express Setup. The Express Setup page displays. Figure 3-3 shows the Express Setup page. Figure 3-3 Step 6 Express Setup Page Enter the configuration settings you obtained from your system administrator. The configurable settings include: • Host Name— The host name (or system name), while not an essential setting, helps identify the access point on your network.
Chapter 3 Configuring the Access Point for the First Time Assigning Basic Settings • Note IP Address—Use this setting to assign or change the access point’s IP address. If DHCP is enabled for your network, leave this field blank. If the access point’s IP address changes while you are configuring the access point using the web-browser interface or a Telnet session over the wired LAN, you lose your connection to the access point.
Chapter 3 Configuring the Access Point for the First Time Assigning Basic Settings • Step 7 Aironet Extensions—Enable this setting if there are only Cisco Aironet devices on your wireless LAN or the unit is operating in repeater mode. Click Apply to save your settings. If you changed the IP address, you lose your connection to the access point. Browse to the new IP address to reconnect to the access point.
Chapter 3 Configuring the Access Point for the First Time Configuring Basic Security Settings Enabling the Radio Interfaces In Cisco IOS Release 12.3(7)JA, 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.
Chapter 3 Configuring the Access Point for the First Time Configuring Basic Security Settings Configuring Basic Security Settings You can use the Express Security page to create unique SSIDs and assign one of four security types to them. Figure 3-4 shows the Express Security page.
Chapter 3 Configuring the Access Point for the First Time Configuring Basic Security Settings Understanding Express Security Settings When the access point configuration is at factory defaults, the first SSID that you create by using the Express Security page overwrites the default SSID (tsunami), which has no security settings. The SSIDs that you create appear in the SSID table at the bottom of the page. You can create up to 16 SSIDs on the access point. Note In Cisco IOS Release 12.
Chapter 3 Configuring the Access Point for the First Time Configuring Basic Security Settings Table 3-2 Security Types on Express Security Setup Page (continued) Security Type Description Security Features Enabled EAP Authentication This option enables 802.1x authentication (such as LEAP, PEAP, EAP-TLS, EAP-GTC, EAP-SIM, and others) and requires you to enter the IP address and shared secret for an authentication server on your network (server authentication port 1645). Because 802.
Chapter 3 Configuring the Access Point for the First Time Finding the IP Address Using the CLI Using the Express Security Page Follow these steps to create an SSID using the Express Security page: Step 1 Type the SSID in the SSID entry field. The SSID can contain up to 32 alphanumeric characters. Note These characters are not allowed in the SSID: ", /, ], +, tab, and a trailing space character. Step 2 To broadcast the SSID in the bridge beacon, check the Broadcast SSID in Beacon check box.
Chapter 3 Configuring the Access Point for the First Time Assigning an IP Address Using the CLI Assigning an IP Address Using the CLI When you assign an IP address to the access point using the CLI, you must assign the address to the BVI. Beginning in privileged EXEC mode, follow these steps to assign an IP address to the access point’s BVI: Command Purpose Step 1 configure terminal Enter global configuration mode. Step 2 interface bvi1 Enter interface configuration mode for the BVI.
C H A P T E R 4 Using the Web-Browser Interface This chapter describes the web-browser interface that you can use to configure the access point.
Chapter 4 Using the Web-Browser Interface Using the Web-Browser Interface for the First Time Using the Web-Browser Interface for the First Time Use the access point’s IP address to browse to the management system. See the “Obtaining and Assigning an IP Address” section on page 3-3 for instructions on assigning an IP address to the access point. Follow these steps to begin using the web-browser interface: Step 1 Start your Internet browser.
Chapter 4 Using the Web-Browser Interface Using the Management Pages in the Web-Browser Interface Figure 4-1 shows the web-browser interface home page. Figure 4-1 Web-Browser Interface Home Page Using Action Buttons Table 4-1 lists the page links and buttons that appear on most management pages.
Chapter 4 Using the Web-Browser Interface Using the Management Pages in the Web-Browser Interface Table 4-1 Common Buttons on Management Pages (continued) Button/Link Description Security Displays a summary of security settings and provides links to security configuration pages that are used to configure all security options for each radio interface.
Chapter 4 Using the Web-Browser Interface Using Online Help Character Restrictions in Entry Fields Because the access point uses Cisco IOS software, there are certain characters that you cannot use in the entry fields on the web-browser interface. Table 4-2 lists the prohibited characters and the fields in which you cannot use them.
Chapter 4 Using the Web-Browser Interface Using Online Help Cisco Aironet 1240AG Series Access Point Hardware Installation Guide 4-6 OL-7293-01
C H A P T E R 5 Using the Command-Line Interface This chapter describes the IOS command-line interface (CLI), which you can use to configure your access point.
Chapter 5 Using the Command-Line Interface Cisco IOS Command Modes Cisco IOS Command Modes The Cisco IOS user interface is divided into many different modes. The commands available to you depend on the mode you are currently using. Enter a question mark (?) at the system prompt to obtain a list of commands available for each command mode. Refer to the Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges for a list of the supported Cisco IOS commands.
Chapter 5 Using the Command-Line Interface Getting Help Getting Help You can enter a question mark (?) at the system prompt to display a list of commands available for each command mode. You can also obtain a list of associated keywords and arguments for any command, as shown in Table 5-2. Table 5-2 Help Summary Command Purpose help Obtains a brief description of the help system in any command mode. abbreviated-command-entry? Obtains a list of commands that begin with a particular character string.
Chapter 5 Using the Command-Line Interface Using no and default Forms of Commands Using no and default Forms of Commands Most configuration commands also have a no form. In general, use the no form to disable a feature or function or reverse the action of a command. For example, the no shutdown interface configuration command reverses the shutdown of an interface. Use the command without the keyword no to re-enable a disabled feature or to enable a feature that is disabled by default.
Chapter 5 Using the Command-Line Interface Using Command History Changing the Command History Buffer Size By default, the access point records ten command lines in its history buffer. Beginning in privileged EXEC mode, enter this command to change the number of command lines that the access point records during the current terminal session: ap# terminal history [size number-of-lines] The range is from 0 to 256.
Chapter 5 Using the Command-Line Interface Using Editing Features Using Editing Features This section describes the editing features that can help you manipulate the command line. It contains these sections: • Enabling and Disabling Editing Features, page 5-6 • Editing Commands with Keystrokes, page 5-6 • Editing Command Lines That Wrap, page 5-7 Enabling and Disabling Editing Features Although enhanced editing mode is automatically enabled, you can disable it.
Chapter 5 Using the Command-Line Interface Using Editing Features Table 5-5 Editing Commands with Keystrokes (continued) Keystroke1 Capability Purpose Delete entries if you make a mistake Delete or Backspace or change your mind. Ctrl-D Capitalize or lowercase words or capitalize a set of letters. Erase the character to the left of the cursor. Delete the character at the cursor. Ctrl-K Delete all characters from the cursor to the end of the command line.
Chapter 5 Using the Command-Line Interface Searching and Filtering Output of show and more Commands In this example, the access-list global configuration command entry extends beyond one line. When the cursor first reaches the end of the line, the line is shifted ten spaces to the left and redisplayed. The dollar sign ($) shows that the line has been moved to the left. Each time the cursor reaches the end of the line, the line is again shifted ten spaces to the left.
Chapter 5 Using the Command-Line Interface Accessing the CLI Accessing the CLI You can open the access point’s CLI using Telnet or Secure Shell (SSH). Opening the CLI with Telnet Follow these steps to open the CLI with Telnet. These steps are for a PC running Microsoft Windows with a Telnet terminal application. Check your PC operating instructions for detailed instructions for your operating system. Step 1 Choose Start > Programs > Accessories > Telnet.
Chapter 5 Using the Command-Line Interface Accessing the CLI Cisco Aironet 1240AG Series Access Point Hardware Installation Guide 5-10 OL-7293-01
C H A P T E R 6 Troubleshooting This chapter provides troubleshooting procedures for basic problems with the access point. 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/en/US/products/hw/wireless/tsd_products_support_category_home.
Chapter 6 Troubleshooting Checking the Access Point LEDs Checking the 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 6-1 shows the access point LEDs (for additional information refer to the Event Log using the access point browser interface). Access Point LEDs CONSOLE STATUS RADIO ETHERNET ETHERNET 48VDC MODE 2.4 GHz RIGHT/PRIMARY 2.
Chapter 6 Troubleshooting Checking Basic Settings Message type Ethernet LED Radio LED Status LED Meaning 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 Red Blinking pink and off Image recovery in progress and Mode button is released.
Chapter 6 Troubleshooting Checking Basic Settings Default IP Address Behavior When you connect a 1240 series access point running Cisco IOS Release 12.3(7)JA 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, the access point radios are disabled by default, and there is no default SSID.
Chapter 6 Troubleshooting Low Power Condition 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.
Chapter 6 Troubleshooting Low Power Condition Intelligent Power Management The access point requires 12.95 W of power 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.
Chapter 6 Troubleshooting Low Power Condition • %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 Power Inline Never.
Chapter 6 Troubleshooting Low Power Condition The< platform name> indicates the Cisco platform detected by the access point. The 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.
Chapter 6 Troubleshooting Low Power Condition Table 6-2 Using Cisco IOS Commands Cisco IOS Commands Power Source Access Point 2 Power injector used with a Cisco switch that no power inline negotiation prestandard source does not support Intelligent Power power inline negotiation injector xxxx.xxxx.xxxx Management1 (where xxxx.xxxx.
Chapter 6 Troubleshooting Low Power Condition 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.
Chapter 6 Troubleshooting Low Power Condition Table 6-3 Access Point System Power Settings and Cisco Switch Commands (continued) Power Source Access Point System Power Settings Cisco Switch Power Command Power injector2 used with a Cisco switch that supports Intelligent Power Management1 Power Settings: power inline never3 Power Negotiation (selected) Power Injector: Installed on Port with MAC Address (unchecked) 2 Power injector used with a Cisco switch that does not support Intelligent Power M
Chapter 6 Troubleshooting Running the Carrier Busy Test Step 4 If you are using a power injector with a Cisco switch, choose one of these Power setting options (see Figure 6-2): 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.
Chapter 6 Troubleshooting Running the Ping Test Step 5 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.
Chapter 6 Troubleshooting Resetting to the Default Configuration 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.
Chapter 6 Troubleshooting Reloading the Access Point Image Step 7 Click the Reset to Defaults button. Note Step 8 If the access point is configured with a static IP address, the IP address does not change. After the access point reboots, you must reconfigure the access point by using the Web browser interface, the Telnet interface, or Cisco IOS commands.
Chapter 6 Troubleshooting Reloading the Access Point Image 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.
Chapter 6 Troubleshooting Reloading the Access Point Image 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.
Chapter 6 Troubleshooting Obtaining the Access Point Image File 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/public/sw-center/sw-wireless.shtml Step 2 Click Option 2: Aironet Wireless Software Display Tables.
A P P E N D I X A Translated Safety Warnings This appendix provides translations of the safety warnings that appear in this publication. These translated warnings apply to other documents in which they appear in English.
Appendix A Translated Safety Warnings Statement 245B—Explosive Device Proximity Warning Statement 245B—Explosive Device Proximity Warning Warning Waarschuwing Varoitus Do not operate your wireless network device near unshielded blasting caps or in an explosive environment unless the device has been modified to be especially qualified for such use.
Appendix A Translated Safety Warnings Statement 332—Antenna Installation Warning Statement 332—Antenna Installation Warning Warning In order to comply with FCC radio frequency (RF) exposure limits, antennas should be located at a minimum of 7.9 inches (20 cm) or more from the body of all persons. Statement 332 Waarschuwing Om te voldoen aan de FCC radiofrequentie (RF) blootstellingslimieten dienen antennes zich minstens 20 cm of meer van de lichamen van alle personen bevinden.
Appendix A Translated Safety Warnings Statement 353—Power Source Warning Varoitus Tämä tuote on liitettävä PoE (Power over Ethernet) IEEE 802.3af -yhteensopivaan virtalähteeseen tai IEC60950-yhteensopivaan rajoitettuun virtalähteeseen. Attention Ce produit doit être connecté à une source d'alimentation électrique par câble Ethernet (PoE) conforme à la norme IEEE 802.3af ou à une source d'alimentation limitée conforme à la norme IEC60950.
Appendix A Translated Safety Warnings Statement 1001—Work During Lightning Activity Warning Statement 1001—Work During Lightning Activity Warning Warning Waarschuwing Varoitus Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001 Tijdens onweer dat gepaard gaat met bliksem, dient u niet aan het systeem te werken of kabels aan te sluiten of te ontkoppelen. Älä työskentele järjestelmän parissa äläkä yhdistä tai irrota kaapeleita ukkosilmalla.
Appendix A Translated Safety Warnings Statement 1004—Installation Instructions Warning Statement 1004—Installation Instructions Warning Warning Waarschuwing Varoitus Read the installation instructions before connecting the system to the power source. Statement 1004 Raadpleeg de installatie-instructies voordat u het systeem op de voedingsbron aansluit. Lue asennusohjeet ennen järjestelmän yhdistämistä virtalähteeseen.
Appendix A Translated Safety Warnings Statement 1005—Circuit Breaker (20A) Warning Statement 1005—Circuit Breaker (20A) Warning Warning Waarschuwing Varoitus This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 20A Statement 1005 Dit product is afhankelijk van de installatie van het gebouw voor beveiliging tegen kortsluiting (overstroom). Controleer of de beschermingsinrichting niet meer dan: 20A is.
Appendix A Translated Safety Warnings Statement 1005—Circuit Breaker (20A) Warning 20A 20A 20A Cisco Aironet 1240AG Series Access Point Hardware Installation Guide A-8 OL-7293-01
A P P E N D I X B Declarations of Conformity and Regulatory Information This appendix provides declarations of conformity and regulatory information for the Cisco Aironet 1240AG Series Access Points.
Appendix B Manufacturers Federal Communication Commission Declaration of Conformity Statement Declarations of Conformity and Regulatory Information Manufacturers Federal Communication Commission Declaration of Conformity Statement Tested To Comply With FCC Standards FOR HOME OR OFFICE USE Model: AIR-AP1242AG-A-K9 FCC Certification number: LDK102055 Manufacturer: Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA This device complies with Part 15 rules.
Appendix B Declarations of Conformity and Regulatory Information Department of Communications—Canada Caution Within the 5.15 to 5.25 GHz band (5 GHz radio channels 34 to 48) the U-NII devices are restricted to indoor operations to reduce any potential for harmful interference to co-channel Mobile Satellite System (MSS) operations.
Appendix B Declarations of Conformity and Regulatory Information European Community, Switzerland, Norway, Iceland, and Liechtenstein Declaration of Conformity with Regard to the R&TTE Directive 1999/5/EC English: This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Deutsch: Dieses Gerät entspricht den grundlegenden Anforderungen und den weiteren entsprecheneden Vorgaben der Richtlinie 1999/5/EU.
Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity for RF Exposure For 54 Mbps, 5 GHz access points, the following standards were applied: • Radio: EN 301.893 • EMC: EN 301.489-1, EN 301.489-17 • Safety: EN 60950 The following CE mark is affixed to the access point with a 2.4 GHz radio and a 54 Mbps, 5 GHz radio: Declaration of Conformity for RF Exposure The radio has been found to be compliant to the requirements set forth in CFR 47 Sections 2.
Appendix B Declarations of Conformity and Regulatory Information Guidelines for Operating Cisco Aironet Access Points in Japan Guidelines for Operating Cisco Aironet Access Points in Japan This section provides guidelines for avoiding interference when operating Cisco Aironet access points in Japan. These guidelines are provided in both Japanese and English.
Appendix B Declarations of Conformity and Regulatory Information Administrative Rules for Cisco Aironet Access Points in Taiwan Administrative Rules for Cisco Aironet Access Points in Taiwan This section provides administrative rules for operatingCisco Aironet access points inTaiwan. The rules are provided in both Chinese and English. Access Points with IEEE 802.11a Radios Chinese Translation English Translation This equipment is limited for indoor use.
Appendix B Declarations of Conformity and Regulatory Information Administrative Rules for Cisco Aironet Access Points in Taiwan All Access Points Chinese Translation English Translation Administrative Rules for Low-power Radio-Frequency Devices Article 12 For those low-power radio-frequency devices that have already received a type-approval, companies, business units or users should not change its frequencies, increase its power or change its original features and functions.
Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements Declaration of Conformity Statements All the Declaration of Conformity statements related to this product can be found at the following URL: http://www.ciscofax.
Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries Cisco Aironet 1240AG Series Access Point Hardware Installation Guide B-10 OL-7293-01
A P P E N D I X C Access Point Specifications Table C-1 lists the technical specifications for the Cisco Aironet 1240AG Series Access Point. Table C-1 Access Point Specifications Category 802.11G Radio Specifications 802.11A Radio Specifications Size 6.6 in. W x 8.5 in. D x 1.1 in. H 16.8 cm W x 21.6 cm D x 2.8 cm H Indicators Three indicators on the 2.4 Ghz end panel: Ethernet traffic, status, and radio traffic. Connectors 2.
Appendix C Table C-1 Access Point Specifications Access Point Specifications (continued) Category 802.11G Radio Specifications Subcarrier modulation BPSK (1 Mbps) QPSK (2 Mbps) CCK (5.
Appendix C Access Point Specifications Table C-1 Access Point Specifications (continued) Category 802.11G Radio Specifications 802.11A Radio Specifications Radio Approvals FCC Parts 15.247 Canada RSS-210 Japan ARIB-STD-33B Japan ARIB-STD-66 Europe EN-300.328 FCC Part 15.407 Canada RSS-210 Japan ARIB STD-T71 EN 301.893 EMI and Susceptibility FCC Part 15.107 and 15.109 Class B ICES-003 Class B (Canada) EN 55022 B AS/NZS 3548 Class B VCCI Class B EN 301.489-1 EN 301.
Appendix C Access Point Specifications Cisco Aironet 1240AG Series Access Point Hardware Installation Guide C-4 OL-7293-01
A P P E N D I X D Channels and Power Levels This appendix lists the IEEE 802.11b/g (2.4-GHz) and the IEEE 802.11a (5-GHz) channels and maximum power levels supported by the world’s regulatory domains.
Appendix D Channels and Power Levels Channels and Maximum Power Levels Channels and Maximum Power Levels IEEE 802.11b/g (2.4-GHz Band) An improper combination of power level and antenna gain can result in equivalent isotropic radiated power (EIRP) above the amount allowed per regulatory domain. Table D-1and Table D-2 indicates the channel identifiers, channel center frequencies, and maximum power levels for each channel allowed by the regulatory domains: .
Appendix D Channels and Power Levels Channels and Maximum Power Levels Table D-2 Channels and Maximum Conducted Power for the 802.
Appendix D Channels and Power Levels Channels and Maximum Power Levels Table D-3 indicates the channel identifiers, channel center frequencies, and maximum power levels for each IEEE 802.11a 20-MHz-wide channel allowed by the regulatory domains: Table D-3 Channel Identifier Channels and Maximum Conducted Power for IEEE 802.11a Radio with up to 9.
Appendix D Channels and Power Levels Channels and Maximum Power Levels Maximum Power Levels in Some Regulatory Domains with External Antennas Caution Table D-4 To avoid exceeding maximum conducted power levels in the China (–C), EMEA (-E), South Korea (–K), Israel (–I), and Singapore (–S) regulatory domains when using an 802.11b/g radio with 2.2- to 10-dBi external antennas, you must manually set the access point output power level as shown in Table D-4. Maximum Power Levels for the 802.
Appendix D Channels and Power Levels Channels and Maximum Power Levels Caution Table D-5 Channel Identifier To avoid exceeding maximum conducted power levels in the EMEA (-E) and Israel (–) regulatory domains when using a IEEE 802.11a radio with 6.0- to 9.5-dBi external 5-MHz antennas, you must manually set the access point output power level as shown in Table D-5. Maximum Power Levels for IEEE 802.
A P P E N D I X E Console Cable Pinouts This appendix identifies the pinouts for the serial console cable that connects to the access point’s serial console port.
Appendix E Console Cable Pinouts Overview Overview The access point requires a special serial cable that connects the access point serial console port (RJ-45 connector) to your PC’s COM port (DB-9 connector). This cable can be purchased from Cisco (part number AIR-CONCAB1200) or can be built using the pinouts in this appendix.
GLOSSARY 802.3af The IEEE standard that describes a mechanism for Power over Ethernet (PoE). The standard provides the capability to deliver both power and data over standard Ethernet cabling. 802.11 The IEEE standard that specifies carrier sense media access control and physical layer specifications for 1- and 2-megabit-per-second (Mbps) wireless LANs operating in the 2.4-GHz band. 802.
Glossary B beacon A wireless LAN packet that signals the availability and presence of the wireless device. Beacon packets are sent by access points and base stations; however, client radio cards send beacons when operating in computer to computer (Ad Hoc) mode. BOOTP Boot Protocol. A protocol used for the static assignment of IP addresses to devices on the network. BPSK Binary phase shift keying is a modulation technique used by IEEE 802.11b-compliant wireless LANs for transmission at 1 Mbps.
Glossary DHCP Dynamic host configuration protocol. A protocol available with many operating systems that automatically issues IP addresses within a specified range to devices on the network. The device retains the assigned address for a specific administrator-defined period. dipole A type of low-gain (2.2-dBi) antenna consisting of two (often internal) elements.
Glossary I IEEE Institute of Electrical and Electronic Engineers. A professional society serving electrical engineers through its publications, conferences, and standards development activities. The body responsible for the Ethernet 802.3 and wireless LAN 802.11 specifications. infrastructure The wired Ethernet network. IP Address The Internet Protocol (IP) address of a station.
Glossary Q QPSK Quadruple phase shift keying is a modulation technique used by IEEE 802.11b-compliant wireless LANs for transmission at 2 Mbps. R range A linear measure of the distance that a transmitter can send a signal. receiver sensitivity A measurement of the weakest signal a receiver can receive and still correctly translate it into data. RF Radio frequency. A generic term for radio-based technology.
Glossary U UNII Unlicensed National Information Infrastructure—regulations for UNII devices operating in the 5.15 to 5.35 GHz and 5.725 to 5.825 GHz frequency bands. UNII-1 Regulations for UNII devices operating in the 5.15 to 5.25 GHz frequency band. UNII-2 Regulations for UNII devices operating in the 5.25 to 5.35 GHz frequency band. UNII-3 Regulations for UNII devices operating in the 5.725 to 5.825 GHz frequency band. unicast packet A single data message (packet) sent to a specific IP address.
INDEX See CLI A command modes abbreviating commands access point image 5-3 5-2 commands 6-16 abbreviating antenna 5-3 no and default connectors C-2 connectors Apply button 4-4 console port B 5-4 C-1, C-2 E-2 D basic settings, checking 6-4 data rates C-2 declarations of conformity B-1 default, configuration, resetting C default commands Cancel button 5-4 4-4 CLI abbreviating commands command modes E 5-3 5-2 editing features editing features enabling and disabling enab
Index operating temperature G global configuration mode C-1 5-2 P package contents H password reset help, for the command line 5-3 history 2-3 6-14 pinouts, serial cable E-2 power changing the buffer size 5-5 connecting described 5-4 input disabling 5-5 output recalling commands Home button 5-5 4-3 I 2-12 C-1 C-1 power level, maximum D-2 privileged EXEC mode 5-2 R indicators 6-2 input power range, radio C-1 installation guidelines C-2 regulatory 2-3 domains interfa
Index terminal emulator TFTP server 3-4 6-16 troubleshooting 6-1 U unpacking 2-3 user EXEC mode 5-2 V voltage range C-1 W warnings 2-2, A-1 Web-based interface common buttons 4-3 compatible browsers 4-1 web site, Cisco Software Center weight 6-19 C-1 WEP key 6-5 Wi-Fi Protected Access (WPA) 3-12 Cisco Aironet 1240AG Series Access Point Hardware Installation Guide OL-7293-01 IN-3
Index Cisco Aironet 1240AG Series Access Point Hardware Installation Guide IN-4 OL-7293-01