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7-7

Cisco Aironet 1200 Series Access Point Hardware Installation Guide

OL-8370-04

Chapter 7 Troubleshooting Lightweight Access Points

Returning the Access Point to Autonomous Mode

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 7-7

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

c1200-k9w7-tar.123-8.JA.ta

r for a

1200 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

c1200-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.

Step 8

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

Step 9

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

MODE Button Setting

The access point MODE button is configured from your controller. Use these controller CLI commands
to view and configure the MODE button:

config ap rst-button enable

access-point-name

/all

config ap rst-button disable

access-point-name

/all

show ap config general

access-point-name

(Where access-point-name

is the name that identifies the access point on the

oontroller.)

Содержание Aironet 1200 Series

Страница 1: ...ms Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 527 0883 Cisco Aironet 1200 Series Access Point Hardware Installation Guide December 2006 Text Part Number OL 8370 04 ...

Страница 2: ... equipment to one side or the other of the television or radio Move the equipment farther away from the television or radio Plug the equipment into an outlet that is on a different circuit from the television or radio That is make certain the equipment and the television or radio are on circuits controlled by different circuit breakers or fuses Modifications to this product not authorized by Cisco...

Страница 3: ...tures 1 3 Dual Radio Operation 1 4 LEDs 1 5 Ethernet Port 1 5 Console Port 1 6 Power Sources 1 6 UL 2043 Certification 1 6 Anti Theft Features 1 6 Network Examples with Autonomous Access Points 1 7 Root Access Point on a Wired LAN 1 8 Repeater Unit that Extends Wireless Range 1 9 Central Unit in an All Wireless Network 1 10 Bridge Network with Wireless Clients 1 10 Point to Point Bridge Configurat...

Страница 4: ...k with Local Power 2 10 C H A P T E R 3 Mounting Instructions 3 1 Overview 3 2 Mounting on a Horizontal or Vertical Surface 3 3 Mounting Below a Suspended Ceiling 3 4 Mounting Above a Suspended Ceiling 3 5 Attaching the Access Point to the Mounting Bracket 3 8 Securing the Access Point to the Mounting Bracket 3 8 C H A P T E R 4 Upgrading the 2 4 GHz Radio 4 1 Upgrade Overview 4 2 Unpacking the Ra...

Страница 5: ...the MODE button 6 9 Web Browser Interface 6 10 Browser HTTP Interface 6 10 Browser TFTP Interface 6 10 Obtaining the Access Point Image File 6 11 Obtaining the TFTP Server Software 6 12 Connecting to the Access Point Locally 6 13 C H A P T E R 7 Troubleshooting Lightweight Access Points 7 1 Guidelines for Using 1200 Series Lightweight Access Points 7 2 Using DHCP Option 43 7 2 Checking the Top Pan...

Страница 6: ...99 5 EC R TTE Directive B 5 Declaration of Conformity for RF Exposure B 7 Guidelines for Operating Cisco Aironet Access Points in Japan B 8 Japanese Translation B 8 English Translation B 8 Administrative Rules for Cisco Aironet Access Points in Taiwan B 9 Access Points with IEEE 802 11a Radios B 9 Chinese Translation B 9 English Translation B 9 All Access Points B 10 Chinese Translation B 10 Engli...

Страница 7: ...E N D I X F Priming Lightweight Access Points Prior to Deployment F 1 A P P E N D I X G Configuring DHCP Option 43 for Lightweight Access Points G 1 Overview G 2 Configuring Option 43 for 1000 Series Access Points G 2 Configuring Option 43 for 1100 1130 1200 1240 and 1300 Series Lightweight Access Points G 3 G L O S S A R Y I N D E X ...

Страница 8: ...Contents viii Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 ...

Страница 9: ...ccess points refer to the Cisco IOS Command Reference for Cisco Aironet Access Points and Bridges for this release For information about the standard Cisco IOS Release 12 3 commands refer to the Cisco IOS documentation set available from the Cisco com home page at Technical Support Documentation On the Technical Support Documentation home page click Cisco IOS Software Cisco IOS Software Releases 1...

Страница 10: ...Levels lindicates how to access the document that lists the access point radio channels and the maximum power levels supported by the world s regulatory domains Appendix E Console Cable Pinouts identifies the pinouts for the serial console cable that connects to the access point s serial console port Appendix F Priming Lightweight Access Points Prior to Deployment describes the procedure to prime ...

Страница 11: ...skentelet minkään laitteiston parissa ota selvää sähkökytkentöihin liittyvistä vaaroista ja tavanomaisista onnettomuuksien ehkäisykeinoista Tässä julkaisussa esiintyvien varoitusten käännökset löydät liitteestä Translated Safety Warnings käännetyt turvallisuutta koskevat varoitukset Attention Ce symbole d avertissement indique un danger Vous vous trouvez dans une situation pouvant entraîner des bl...

Страница 12: ... elektriske kretser innebærer samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker Hvis du vil se oversettelser av de advarslene som finnes i denne publikasjonen kan du se i vedlegget Translated Safety Warnings Oversatte sikkerhetsadvarsler Aviso Este símbolo de aviso indica perigo Encontra se numa situação que lhe poderá causar danos fisicos Antes de começar a trabalhar com qua...

Страница 13: ...dress such as MAC 00abc65094f3 12 hexadecimal digits Location of manufacture such as Made in Singapore You need your product serial number when requesting support from the Cisco Technical Assistance Center Obtaining Documentation Obtaining Support and Security Guidelines For information on obtaining documentation obtaining support providing documentation feedback security guidelines and also recom...

Страница 14: ...xiv Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Preface Locating the Product Serial Number ...

Страница 15: ...P1210 AIR AP1220B AIR AP1230B AIR AP1220A AIR AP 1230A AIR AP1231G and AIR AP1232AG provide a secure affordable and easy to use wireless LAN solution that combines mobility and flexibility with the enterprise class features required by networking professionals With a management system based on Cisco IOS software the 1200 series access point is a Wi Fi certified wireless LAN transceiver The 1200 se...

Страница 16: ... manages the configuration firmware and control transactions such as 802 1x authentication In addition all wireless traffic is tunneled through the controller LWAPP is an Internet Engineering Task Force IETF draft protocol that defines the control messaging for setup and path authentication and run time operations LWAPP also defines the tunneling mechanism for data traffic In an LWAPP environment ...

Страница 17: ...equivalent to WDS when the access point associates to it The access points support eight BSSIDs per radio and a total of eight wireless LANs per access point When a lightweight access point associates to a controller only wireless LANs with IDs 1 through 8 are pushed to the access point The access points do not support Layer 2 LWAPP They must get an IP address and discover the controller using DHC...

Страница 18: ...9 802 11a radio module with integrated antenna hereafter called the RM21A radio module Note The autonomous access points require Cisco IOS Release 12 3 2 JA or later AIR RM22A x K9 802 11a radio module with external RP TNC antenna connectors hereafter called the RM22A radio module Note The autonomous access points require Cisco IOS Release 12 3 2 JA or later Note Cisco Aironet CB20A client radios ...

Страница 19: ...n a packet is received or transmitted over the Ethernet infrastructure The LED is off when the Ethernet cable is not connected The status LED signals operational status Green indicates that the access point is associated with at least one wireless client Blinking green indicates that the access point is operating normally but is not associated with any wireless devices The radio LED signals wirele...

Страница 20: ...el Note The Catalyst 3550 24 PWR switch supports power for access points configured with both 2 4 GHz and 5 GHz radios Other switches and patch panels might not provide enough power for both radios UL 2043 Certification The access point is encased in a durable metal case having adequate fire resistance and low smoke producing characteristics suitable for operation in a building s environmental air...

Страница 21: ...all wireless network The autonomous 1200 series access point supports these operating wireless modes Root access point Connected to a wired LAN and supports wireless clients Repeater access point Not connected to a wired LAN associates to a root access point and supports wireless clients Workgroup bridge Not connected to a wired LAN associates to a root access point or bridge and supports wired ne...

Страница 22: ...than one autonomous access point is connected to the LAN users can roam from one area of a facility to another without losing their connection to the network As users move out of range of one access point they automatically connect to the network associate through another access point The roaming process is seamless and transparent to the user Figure 1 2 shows access points acting as root units on...

Страница 23: ...ic 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 Figure 1 3 shows an autonomous access point acting as a repeater Consult the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points for instructions on setting ...

Страница 24: ...ther The access point serves as the focal point for communications increasing the communication range of wireless users Figure 1 4 shows an autonomous access point in an all wireless network Figure 1 4 Access Point as Central Unit in All Wireless Network Bridge Network with Wireless Clients The access point supports root bridge and non root bridge roles used to interconnect a remote LAN to the mai...

Страница 25: ...s a root bridge and the other bridge is classified as a non root bridge Figure 1 6 Point to Point Bridge Configuration 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 7 or with a bridge see Figure 1 8 Figure 1 7 Workgroup Bridge Communicatin...

Страница 26: ...eration Lightweight access points and controllers in Layer 3 configurations use IP addresses and UDP packets which can be routed through large networks Layer 3 operation is scalable and recommended by Cisco This section illustrates a typical wireless network configuration containing lightweight access points and a Cisco Wireless LAN Controller see Figure 1 9 Figure 1 9 Typical Lightweight Access P...

Страница 27: ...1 13 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Chapter 1 Overview Network Example with Lightweight Access Points ...

Страница 28: ...Information page 2 2 Warnings page 2 2 Unpacking the Access Point page 2 3 Basic Installation Guidelines page 2 4 Controller Discovery Process for Lightweight Access Points page 2 4 Before Beginning the Installation page 2 5 Deploying the Access Points on the Wireless Network page 2 7 Connecting the 2 4 GHz Antennas page 2 8 Connecting the 5 GHz External Antennas page 2 8 Connecting the Ethernet a...

Страница 29: ...eless devices in hazardous locations is limited to the constraints posed by the local codes the national codes and the safety directors of such environments Warnings Translated versions of all safety warnings are available in the safety warning document that shipped with your access point or on Cisco com To browse to the document on Cisco com refer to Appendix A Translated Safety Warnings for inst...

Страница 30: ...s listed in the Package Contents section are included in the shipment Check each item for damage If any item is damaged or missing notify your authorized Cisco sales representative Package Contents Each access point package contains the following items Cisco Aironet 1200 Series Access Point or Cisco Aironet 1200 Series Lightweight Access Point Cisco Aironet 1200 Series Power Module Universal power...

Страница 31: ...s for Lightweight Access Points The lightweight access point supports these controller discovery processes DHCP server discovery Uses DHCP Option 43 to provide controller IP addresses to the access points Cisco switches support a DHCP server option For additional information refer to the Configuring DHCP Option 43 for Lightweight Access Points section on page G 1 DNS server discovery The access po...

Страница 32: ... s layout connectors and 5 GHz module location Figure 2 1 Access Point Layout and Connectors Note Do not connect Cisco 5 GHz antennas with blue labels or blue dots to the 2 4 GHz antenna connectors Figure 2 2 Access Point with 5 GHz Radio Module RM21A 1 2 4 GHz antenna connectors 5 Mode button 2 48 VDC power port 6 Status LEDs 3 Ethernet port RJ 45 7 Mounting bracket 4 Console port RJ 45 1 2 3 4 6...

Страница 33: ... Beginning the Installation Figure 2 3 RM22A Radio Module with External RP TNC Antenna Connectors Note Only connect Cisco 5 GHz antennas with blue labels or blue dots to the RM22A radio module 1 Left 5 GHz antenna connector RP TNC 4 Right 5 GHz antenna connector RP TNC 2 Blue 5 GHz label 5 5 GHz radio 3 Module mounting screws ...

Страница 34: ...on maps or floor plans to your network planner or manager The network operators can use the MAC address and location information to create maps for precise wireless system management b Mount the access point at the indicated destination using the specified mounting method For specific mounting instructions see these sections Attaching the access point to the mounting plate see the Attaching the Ac...

Страница 35: ...n a table or desk orient the antenna straight up On a vertical surface such as a wall orient the antenna straight up On a ceiling orient the antenna straight down Step 3 If you are using another Cisco Aironet antenna refer to the antenna mounting instructions that came with your antenna Connecting the 5 GHz External Antennas The access point supports an RM22A radio module for use with a single ant...

Страница 36: ...GHz radio and the 5 GHz radio Other switches and power patch panels might not provide enough power for the 5 GHz radio Note If you use in line power do not connect the power module to the access point Using two power sources on the access point might cause the switch to shut down the port to which the access point is connected Power cord Universal power supply SYST RPS DUPLX MODE SPEED UTIL STAT 1...

Страница 37: ... Connect the other end of the Ethernet cable to one of the following A switch with inline power such as a Cisco Catalyst 3500XL 3550 24 PWR 4000 or 6500 switch An inline power switch panel such as a Cisco Catalyst Inline Power Patch Panel The end of a Cisco Aironet power injector labeled To AP Bridge Connect the other end labeled To Network to the 10 100 Ethernet LAN Note If you use a power supply...

Страница 38: ...2 11 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Chapter 2 Installing the Access Point Connecting the Ethernet and Power Cables ...

Страница 39: ...ertical surfaces or horizontal surfaces using the access point mounting bracket The following sections are included in this chapter Overview page 3 2 Mounting on a Horizontal or Vertical Surface page 3 3 Mounting Below a Suspended Ceiling page 3 4 Mounting Above a Suspended Ceiling page 3 5 Attaching the Access Point to the Mounting Bracket page 3 8 Securing the Access Point to the Mounting Bracke...

Страница 40: ...s suitable for operation in a building s environmental air space such as above suspended ceilings in accordance with Section 300 22 C of the National Electrical Code NEC Caution Only the fiber optic power injector AIR PWRINJ FIB has been tested to UL 2043 for operation in a building s environmental air space no other power injectors or power modules have been tested to UL 2043 and they should not ...

Страница 41: ...e four mounting holes Step 2 Drill one of the following sized holes at the locations you marked 3 16 in 4 7 mm if you are using wall anchors 1 8 in 6 3 mm if you are not using wall anchors Step 3 Install the anchors into the wall if you are using them Otherwise go to Step 4 Step 4 Secure the mounting bracket to the surface using the 8 fasteners Note On a vertical surface mount the bracket with its...

Страница 42: ... point Step 2 Attach two T rail clips to the suspended ceiling T rail Step 3 Use the mounting bracket to adjust the distance between the T rail clips so that they align with the holes in the mounting bracket Step 4 Use a standard screwdriver to tighten the T rail clip studs in place on the suspended ceiling T rail Do not overtighten Step 5 Install a plastic spacer on each T rail clip stud The spac...

Страница 43: ...ronmental air space no other power injectors or power modules have been tested to UL 2043 and they should not be placed in a building s environmental air space such as above suspended ceilings Note If you plan to mount the access point with a 5 GHz radio in environmental air space Cisco recommends that you mount the access point horizontally with its antennas pointing down Doing so will result in ...

Страница 44: ...ing Figure 3 3 Mounting Bracket Parts The bracket mounting clip requires the use of an access point mounting bracket 700 13520 03 with two extra holes see Figure 3 4 Figure 3 4 Mounting Bracket Holes 1 Suspended ceiling T rail 5 Bracket mounting clip 2 T rail clip 6 Access point mounting bracket 3 Height adjustment screw 7 Access point 4 T bar box hanger 95740 4 5 6 7 3 3 1 2 2 1 1 Extra holes 957...

Страница 45: ...e access point 2 GHz antennas so that they are pointing down when mounted on the T bar Box hanger Orient the 5 GHz antenna for patch or omnidirectional operation as desired 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 3 3 Step 6 Attach the T rail clips on each end of the T bar box hanger to th...

Страница 46: ...s mounting pins into the small ends of the keyhole shaped holes on the mounting bracket and push the connector end of the access point You will hear a click when the locking detent contacts the access point and locks it into place Step 4 Attach and adjust the antenna s or antenna cables Step 5 Connect the Ethernet cable to the access point s Ethernet port Step 6 If using local power insert the 120...

Страница 47: ...ovides instructions for upgrading the 2 4 GHz IEEE 802 11g radio card and includes the following sections Upgrade Overview page 4 2 Unpacking the Radio page 4 2 Opening the Access Cover page 4 3 Removing a Blank Spacer Card page 4 4 Removing a 2 4 GHz Radio page 4 5 Installing a 2 4 GHz Radio page 4 7 Attaching the Compliance Labels page 4 9 ...

Страница 48: ...re remove the existing 2 4 GHz radio card 7 Install the new 2 4 GHz radio card 8 Close the access point 2 4 GHz radio access cover Caution ESD can damage the Cisco Aironet radio and the internal components of the access point It is recommended that the 2 4 GHz radio upgrade procedures be performed by an ESD trained service technician at an ESD protected workstation Unpacking the Radio Each 2 4 GHz...

Страница 49: ...face Step 4 Discharge any static buildup on your body by touching a grounded surface antistatic work surface before proceeding Step 5 Position the access point so that the bottom cover is facing up Caution The internal access point components and the 2 4 GHz radio can be damaged by ESD from improper handling Step 6 Remove the bottom access cover using the T 10 tamper resistant Torx L wrench provid...

Страница 50: ...fully and observe all ESD precautions The internal access point components and the 2 4 GHz radio can be damaged by ESD from improper handling To remove the blank spacer card from the mini PCI connector following these steps Step 1 Push the card retaining clips on each side of card away from the card see Figure 4 2 When released the board springs up Figure 4 2 Location of Retaining Clips on Blank S...

Страница 51: ...installing the radio card go to the Installing a 2 4 GHz Radio section Removing a 2 4 GHz Radio To remove a 2 4 GHz radio card from your access point follow these steps Caution The internal access point components and the 2 4 GHz radio can be damaged by ESD from improper handling Step 1 Use your fingers to carefully remove the antenna wire connectors from the 2 4 GHz radio card Caution The antenna...

Страница 52: ...the card see Figure 4 3 When released the radio card springs up see Figure 4 4 Figure 4 3 Location of Retaining Clips on 2 4 GHz Radio Card b Grasp the radio card only on the edges being careful not to touch components on the board or the gold connector pins c Remove the 2 4 GHz card from the mini PCI connector Step 3 Place the removed 2 4GHz radio card into an anti static bag For instructions on ...

Страница 53: ...ti static bag Step 2 Grasp the radio card only on the edges being careful not to touch components on the board or the gold connector pins Step 3 Connect the black antenna wire connector to the radio card antenna connector marked by the black label see Figure 4 4 Caution To avoid damaging the antenna wire assemblies handle them by their connectors Figure 4 4 Antenna Connector Labels and Mini PCI Co...

Страница 54: ...int s motherboard until the card retaining clips lock into the notches on the side of the radio card you will hear a click Step 7 Carefully position the antenna wires so that the metal connectors do not touch each other Caution Do not allow antenna connectors to touch while power is applied or the radio can be damaged If they are touching carefully rotate them in opposite directions until they are...

Страница 55: ...ways occupies the top space location 1 The two spaces below locations 2 and 3 contain the radio compliance labels Whether or not locations 2 or 3 contain labels depends on how your access point is configured For example a dual band access point could have two radio compliance labels one for each radio device installed or it could have only a product compliance label depending on how it was ordered...

Страница 56: ... series access point based on the model you are upgrading Follow these steps to place the labels correctly Step 1 Check the product compliance label to identify the model number of your 1200 series access point Step 2 Use the matrix in Table 4 1 to decide which labels to use and where to place them on the access point Step 3 Discard any labels that you did not use The radio card installation is no...

Страница 57: ...4 5 Upgrading the 5 GHz Radio Module This chapter provides instructions for upgrading a 5 GHz radio module and includes the following sections Upgrade Overview page 5 2 Removing the 5 GHz Radio Access Cover page 5 2 Removing a 5 GHz Radio Module page 5 3 Installing a 5 GHz Radio Module page 5 5 ...

Страница 58: ...dio module 5 Install the new 5 GHz radio module Unpacking the Radio Module Each 5 GHz radio module is shipped with the following items Quick start guide A product registration card A T 10 tamper resistant Torx L wrench A 5 GHz radio compliance label A product compliance label supplied with RM21A and RM22A radio modules If anything is missing or damaged contact your Cisco representative for support...

Страница 59: ...e follow these steps Step 1 Remove all cables and power connections from the access point Step 2 Place the access point on a flat surface so that the unit is upright with the front end facing you Step 3 Unscrew the two mounting screws using the supplied Torx L wrench Figure 5 2 Figure 5 2 5 GHz Radio Module Note Do not attempt to remove the mounting screws from the module they are captured in the ...

Страница 60: ...s point and pull straight out from the access point see Figure 5 3 Figure 5 3 Removing the 5 GHz Radio Module Step 5 For a radio module with built in antenna fold the antenna down towards the attached radio card and insert the module into a static protected bag Step 6 For a radio module with connectors insert the radio module into a static protected bag To install a new 5 GHz radio module see the ...

Страница 61: ...o Removing the 5 GHz Radio Access Cover or Removing a 5 GHz Radio Module Step 2 Place the access point on a flat surface so that the unit is upright with the front end facing you Step 3 Grasp the new 5 GHz radio module by its base with the latch opening point down or the antenna pointing up and insert the card into the access point s card bus slot see Figure 5 4 Figure 5 4 Installing a 5 GHz Radio...

Страница 62: ...hapter 5 Upgrading the 5 GHz Radio Module Installing a 5 GHz Radio Module Step 5 Tighten the 5 GHz radio module mounting screws using the supplied Torx L wrench see Figure 5 5 Figure 5 5 Location of Mounting Screws RM21A Shown 1 5 GHz radio module antenna 2 Mounting screws 2 2 1 74630 ...

Страница 63: ...r access point is configured For example the access point could have two radio compliance labels one for each radio device installed or the access point could have only a product compliance label depending on how it was ordered Make sure that your access point has the correct labels after you install or upgrade its radio configuration so that it will be in compliance with regulations in your count...

Страница 64: ...ard any labels that you did not use The 5 GHz radio module installation is now complete and radio settings are at default values To configure the 5 GHz radio with your wireless network settings refer to the Cisco IOS Software Configuration Guide for Cisco Aironet Access Points Table 5 1 Locations for Compliance Labels 1200 Series Model AIR RM21A x K9 or AIR RM22A x K9 Radio Compliance Label AIR AP...

Страница 65: ...231G and AIR AP1232AG 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 html Sections in this chapter include Checking the Top Panel LEDs page 6 2 Checking Basic Settings page 6 4 Resetting to the Default Configuration page ...

Страница 66: ...red LAN or Ethernet infrastructure This LED is normally green when an Ethernet cable is connected and blinks green when a packet is received or transmitted over the Ethernet infrastructure The LED is off when the Ethernet cable is not connected The status LED signals operational status Steady green indicates that the access point is associated with at least one wireless client Blinking green indic...

Страница 67: ...t s SSID and WEP settings Operating status Green Blinking green Transmitting receiving radio packets Green Ethernet link is operational Blinking green Transmitting receiving Ethernet packets Boot Loader Errors Red Red DRAM memory test failure Red Red File system failure Red Red Ethernet failure during image recovery Amber Green Amber Boot environment error Red Green Red No Cisco IOS image file Amb...

Страница 68: ...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 and the Enabling the Radio Interfaces section on page 6 4 for instructions on enabling the radio interface Enabling the Radio ...

Страница 69: ... 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 Integrit...

Страница 70: ...ve Step 3 Click Network Interfaces and the Network Interface Summary page appears Step 4 Choose the radio interface experiencing problems by clicking Radio0 802 11B or Radio0 802 11G or Radio1 802 11A The respective radio status page appears Step 5 Click the Carrier Busy Test tab and the Carrier Busy Test screen appears Step 6 Click Start to begin the carrier busy test When the test completes the ...

Страница 71: ...test stops the test results are displayed at the bottom of the page You should check for lost packets that might indicate a problem with the wireless link For best results you should 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 b...

Страница 72: ...ss line and press Enter An Enter Network Password screen appears 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 appears Step 4 Click System Software and the System Software screen appears Step 5 Click System Configuration and the System Configurat...

Страница 73: ...w the steps below 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 c1200 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 Se...

Страница 74: ...he instructions below 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 Step 2 Enter the access point s IP address in the browser address line and press Enter An Enter N...

Страница 75: ... Upgrade screen appears 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 c1200 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 dir...

Страница 76: ... Step 8 If you receive a Do you want to display the nonsecure items message click Yes Step 9 On the Encryption Software Export Distribution Authorization Form read the information and click the appropriate box Step 10 Click Submit Step 11 If you indicated that the software is not for you or your company follow these steps a If you receive a Do you want to display the nonsecure items message click ...

Страница 77: ...puter Figure 6 2 shows the serial port connection Figure 6 2 Connecting the Serial Cable 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 to communicate with the access point Use the following settings for the terminal emulator connection 9600 baud 8 data bits no par...

Страница 78: ...6 14 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Chapter 6 Troubleshooting Autonomous Access Points Connecting to the Access Point Locally ...

Страница 79: ...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 html Sections in this chapter include Guidelines for Using 1200 Series Lightweight Access Points page 7 2 Checking the Top Panel LEDs page 7 3 Returning the Access Point to Autonomous Mode page 7 6 Returning the Access Point to Autonomous Mo...

Страница 80: ...e controller provides functionality equivalent to WDS when the access point associates to it The access points support eight Basic Service Set Identifiers BSSIDs per radio and a total of eight wireless LANs per access point When a lightweight access point associates to a controller only wireless LANs with IDs 1 through 8 are pushed to the access point The access points do not support Layer 2 LWAPP...

Страница 81: ...ired LAN or Ethernet infrastructure This LED is normally green when an Ethernet cable is connected and blinks green when a packet is received or transmitted over the Ethernet infrastructure The LED is off when the Ethernet cable is not connected The status LED signals operational status Steady green indicates that the access point is associated with at least one wireless client Blinking green indi...

Страница 82: ... Errors Red Red DRAM memory test failure Red Red File system failure Red Red Ethernet failure during image recovery Amber Green Amber Boot environment error Red Green Red No Cisco IOS image file Amber Amber Amber Boot failure Operation Errors Green Blinking amber Maximum retries or buffer full occurred on the radio Blinking amber Transmit receive Ethernet errors Blinking amber General warning Conf...

Страница 83: ...the static IP addresses for the access point and the default gateway are not changed Configuring Controller Information To manually configure controller information on a new out of the box access point using the access point CLI interface you can use these EXEC mode CLI commands AP lwapp ap ip address IP address subnet mask AP lwapp ip default gateway IP address AP lwapp controller ip address IP a...

Страница 84: ...ess 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 addres...

Страница 85: ...TP server is activated Step 3 Rename the access point image file in the TFTP server folder to c1200 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 ...

Страница 86: ... point image file such as 12 3 8 JA Step 6 Click Wireless LAN and the Enter Password window appears Step 7 Enter your username and password in the respective fields and click OK Step 8 If you receive a Do you want to display the nonsecure items message click Yes Step 9 On the Encryption Software Export Distribution Authorization Form read the information and click the appropriate box Step 10 Click...

Страница 87: ... 1 Connect a nine pin female DB 9 to RJ 45 serial cable to the RJ 45 serial port on the access point and to the COM port on a computer Figure 7 2 shows the serial port connection Figure 7 2 Connecting the Serial Cable 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 ...

Страница 88: ...7 10 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Chapter 7 Troubleshooting Lightweight Access Points Connecting to the Access Point Locally ...

Страница 89: ... available on Cisco com To browse to the document on Cisco com follow these steps Step 1 Click this link to the Cisco Wireless documentation home page http www cisco com en US products hw wireless tsd_products_support_category_home html Step 2 Click Cisco Aironet 1200 Series listed under Access Points Step 3 Click Install and Upgrade Guides Step 4 Click Safety Warnings for Cisco Aironet 1000 1100 ...

Страница 90: ...A 2 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix A Translated Safety Warnings ...

Страница 91: ...nufacturers Federal Communication Commission Declaration of Conformity Statement page B 2 VCCI Statement for Japan page B 4 Industry Canada page B 4 European Community Switzerland Norway Iceland and Liechtenstein page B 5 Declaration of Conformity for RF Exposure page B 7 Guidelines for Operating Cisco Aironet Access Points in Japan page B 8 Operation of Cisco Aironet Access Points in Brazil page ...

Страница 92: ...ce complies with Part 15 rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation This equipment has been tested and found to comply with the limits of a Class B digital device pursuant to Part 15 of the FCC Rules These limits are desi...

Страница 93: ...n 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 Table B 1 Access Point 2 4 GHz Antennas Radio Antenna IEEE 802 11b1 1 Not supported by lightweight access points AIR LAP1231G A K9 or AIR LAP1232AG A K9 IEEE 802 11g Cisco Part Nu...

Страница 94: ... received including interference that may cause undesired operation Cisco Aironet 2 4 GHz Access Points are certified to the requirements of RSS 210 for 2 4 GHz spread spectrum devices and Cisco Aironet 54 Mbps 5 GHz Access Points are certified to the requirements of RSS 210 for 5 GHz spread spectrum devices The use of this device in a system operating either partially or completely outdoors may r...

Страница 95: ...mmunity Switzerland Norway Iceland and Liechtenstein Declaration of Conformity with Regard to the 1999 5 EC R TTE Directive This declaration is only valid for configurations combinations of software firmware and hardware provided and supported by Cisco Systems The use of software or firmware not provided and supported by Cisco Systems may result in the equipment no longer being compliant with the ...

Страница 96: ...1 1 2 of the Medical Directive 93 42 EEC For 2 4 GHz radios the following standards were applied Radio EN 300 328 1 EN 300 328 2 EMC EN 301 489 1 EN 301 489 17 Safety EN 60950 The following CE mark is affixed to access points with a 2 4 GHz radio Note This equipment is intended to be used in all EU and EFTA countries Outdoor use may be restricted to certain frequencies and or may require a license...

Страница 97: ...ty for RF Exposure The radio module has been found to be compliant to the requirements set forth in CFR 47 Sections 2 1091 and 15 247 b 4 addressing RF Exposure from radio frequency devices as defined in Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields For the IEEE 802 11B antennas AIR ANT24120 AIR ANT4121 and AIR ANT1949 the equipment should b...

Страница 98: ...ic and medical devices such as microwave ovens and mobile object identification RF ID systems licensed premises radio stations and unlicensed specified low power radio stations used in factory production lines 1 Before using this equipment make sure that no premises radio stations or specified low power radio stations of RF ID are used in the vicinity 2 If this equipment causes RF interference to ...

Страница 99: ...for Cisco Aironet Access Points in Taiwan Administrative Rules for Cisco Aironet Access Points in Taiwan This section provides administrative rules for operating Cisco Aironet access points in Taiwan 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 ...

Страница 100: ... features and functions Article 14 The operation of the low power radio frequency devices is subject to the conditions that no harmful interference is caused to aviation safety and authorized radio station and if interference is caused the user must stop operating the device immediately and can t re operate it until the harmful interference is clear The authorized radio station means a radio commu...

Страница 101: ...ntains Brazil regulatory information for the AIR AP1231G A K9 and the AIR LAP1231G A K9 access points Figure B 1 Brazil Regulatory Information Portuguese Translation Este equipamento opera em caráter secundário isto é não tem direito a proteção contra interferência prejudicial mesmo de estações do mesmo tipo e não pode causar interferência a sistemas operando em caráter primário English Translatio...

Страница 102: ...n 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 com Declaration of Conformity Statements for European Union Countries The Declaration of Conformity statement for the European Union countries is listed on the following pages ...

Страница 103: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 104: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 105: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 106: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 107: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 108: ... RM22 Series 5 GHz 54 Mbps Wireless LAN Module Fulfils the essential requirements of the Directive 1999 5 EC The following standards were applied EMC EN 301 489 1 v1 4 1 2002 08 EN 301 489 17 v1 2 1 2002 09 Health Safety EN60950 2000 EN 50385 2002 Radio EN 301 893 v 1 2 3 2003 08 The conformity assessment procedure referred to in Article 10 4 and Annex III of Directive 1999 5 EC has been followed ...

Страница 109: ... requirements of the Directive 1999 5 EC The following standards were applied EMC EN 301 489 1 v1 4 1 2002 08 EN 301 489 17 v1 2 1 2002 09 Health Safety EN60950 2000 EN 50385 2002 Radio EN 301 893 v 1 2 3 2003 08 EN 300 328 v 1 4 1 2003 04 The conformity assessment procedure referred to in Article 10 4 and Annex III of Directive 1999 5 EC has been followed The product carries the CE Mark Date Plac...

Страница 110: ...t AIR LAP1232AG E K9 Cisco Aironet 1200 Series IEEE802 11 a b g Access Point Fulfils the essential requirements of the Directive 1999 5 EC The following standards were applied EMC EN 301 489 1 v1 4 1 2002 08 EN 301 489 17 v1 2 1 2002 09 Health Safety EN60950 2000 EN 50385 2002 Radio EN 301 893 v 1 2 3 2003 08 EN 300 328 v 1 4 1 2003 04 The conformity assessment procedure referred to in Article 10 ...

Страница 111: ...ion on the exact configuration operating frequency range and max eirp allowed in the various countries Any combination of output power and antenna resulting in an eirp level above the regulatory limit applicable in a given country is illegal and is outside the scope of this declaration Antennas not listed in the tables below are also outside the scope of this document Table 1 Dedicated antennas fo...

Страница 112: ...isco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix B Declarations of Conformity and Regulatory Information Declaration of Conformity Statements for European Union Countries ...

Страница 113: ...he patch position RM20A or RM21A 6 56 in W x 8 04 in D x 2 21 in H 16 67 cm W x 20 42 cm D x 5 61 H With the RM22A radio module 6 56 in W x 8 76 in D x 1 66 in H 16 67 cm W x 22 25 cm D x 4 22 cm H Status Indicators Three indicators on the top panel Ethernet traffic status and radio traffic Connectors Base unit Back panel left to right Left RP TNC antenna connector power connector for plug in AC p...

Страница 114: ...ting Temperature Base unit with 802 11b or 802 11g radio 4 to 131o F 20 to 55o C 1200 series power injector 32 to 104o F 0 to 40o C Access point with two radios 4 to 122o F 20 to 50o C 1200 series power injector 32 to 104o F 0 to 40o C Storage Temperature 13 to 158o F 25 to 70o C Weight Without mounting bracket 1 6 lbs 0 73 kg with 802 11b or 802 11g radio 1 87 lbs 0 85 kg with RM20A or RM21A radi...

Страница 115: ...W 12 dBm 8 mW 9 dBm 4 mW 6 dBm 2 mW 2 dBm 1 mW 1 dBm Depending on the regulatory domain in which the access point is installed Autonomous access points RM20A radio module 16 dBm 13 dBm 10 dBm 7 dBm RM21A radio module or RM22A radio module 17 dBm 15 dBm 14 dBm 11 dBm 10 dBm 8 dBm 5 dBm 2 dBm 1 dBm Lightweight access points RM21A radio module or RM22A radio module 17 dBm 14 dBm 11 dBm 8 dBm 5 dBm 2 ...

Страница 116: ...n the regulatory domain in which the access point is installed RM20A radio module UNII 1 5 15 to 5 25 GHz UNII 2 5 25 to 5 35 GHz RM21A radio module or RM22A radio module UNII 1 5 15 to 5 25 GHz UNII 2 5 25 to 5 35 GHz UNII 3 5 725 to 5 850 GHz Depending on the regulatory domain in which the access point is installed Modulation 802 11b radio Complementary Code Keying CCK 802 11g radio CCK OFDM Ort...

Страница 117: ...00 mW output power 2000 ft 609 6 m at 1 Mbps 1000 ft 304 8 m at 11 Mbps 30 mW output power 1300 ft 396 2 m at 6 Mbps 600 ft 182 9 m at 18 Mbps 250 ft 76 2 m at 54 Mbps Note Using 2 2dBi antennas at the access point and the client adapter Indoor across office cubicle walls RM20A radio modules 165 ft 50 3 m at 6 Mbps 130 ft 39 6 m at 12 Mbps 110 ft 33 5 m at 18 Mbps 45 ft 13 7 m at 54 Mbps Note Usin...

Страница 118: ...nts for environmental air space with an 802 11a radio installed Safety Designed to meet UL 1950 Third Edition CSA 22 2 No 950 95 IEC 60950 Second Edition including Amendments 1 4 with all deviations EN 60950 Second Edition including Amendments 1 4 Designed to meet UL 1950 Third Edition CSA 22 2 No 950 95 IEC 60950 Second Edition including Amendments 1 4 with all deviations EN 60950 Second Edition ...

Страница 119: ...for Cisco Aironet Lightweight Access Points and Bridges document available on the Cisco Wireless documentation page of Cisco com To browse to the document follow these steps Step 1 Click this link to the Cisco Wireless documentation home page http www cisco com en US products hw wireless ps430 prod_installation_guides_list html Step 2 Click Channels and Maximum Power Settings for Cisco Aironet Aut...

Страница 120: ...D 2 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix D Channels and Maximum Power Levels ...

Страница 121: ... 8370 04 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 The appendix contains the following sections Overview page E 2 Console Port Signals and Pinouts page E 2 ...

Страница 122: ...the COM port of your PC running a terminal emulation program Note Both the Ethernet and console ports use RJ 45 connectors Be careful to avoid accidently connecting the serial cable to the Ethernet port connector Note When your configuration changes are completed you must remove the serial cable from the access point Table E 1 lists the signals and pinouts for the console RJ 45 to DB 9 serial cabl...

Страница 123: ...ned to prime or stage your lightweight access points in a convenient location rather than after they are installed in possibly difficult to reach locations This helps limit potential installation problems to primarily Ethernet and power areas Figure F 1 illustrates a typical priming configuration for your access points Figure F 1 Typical Lightweight Access Point Priming Configuration 158085 LWAPP ...

Страница 124: ...er guide a In multi controller environments You can set one controller s DS port to Master you can use the config network master base disable CLI command or you can use the controller GUI so that new access points always associate with it You can use the show network config CLI command to determine if the controller DS port is the master All access points associate to the master controller From on...

Страница 125: ... 8 If the access point is in a Controller Mobility Group use the controller CLI controller GUI or Cisco WCS to configure the Controller Mobility Group name Step 9 Use controller CLI controller GUI or Cisco WCS to configure the access point specific 802 11a 802 11b and 802 11g network settings Step 10 If the configuration priming was successful the radio LED is blinking to indicate normal operation...

Страница 126: ...F 4 Cisco Aironet 1200 Series Access Point Hardware Installation Guide OL 8370 04 Appendix F Priming Lightweight Access Points Prior to Deployment ...

Страница 127: ...ight Access Points This appendix describes the steps needed to configure DHCP Option 43 for use with lightweight access points This appendix contains these sections Overview page G 2 Configuring Option 43 for 1000 Series Access Points page G 2 Configuring Option 43 for 1100 1130 1200 1240 and 1300 Series Lightweight Access Points page G 3 ...

Страница 128: ...ption 43 Other Cisco Aironet access points use the type length value TLV format for DHCP Option 43 DHCP servers must be programmed to return the option based on the access point s DHCP Vendor Class Identifier VCI string DHCP Option 60 The VCI strings for Cisco access points capable of operating in lightweight mode are listed in Table G 1 The format of the TLV block for 1130 1200 and 1240 series ac...

Страница 129: ...43 ascii Comma Separated IP Address List For example if you are configuring option 43 for Cisco 1000 series access points using the controller IP addresses 10 126 126 2 and 10 127 127 2 add the following line to the DHCP pool in the Cisco IOS CLI option 43 ascii 10 126 126 2 10 127 127 2 The quotation marks must be included Configuring Option 43 for 1100 1130 1200 1240 and 1300 Series Lightweight ...

Страница 130: ...tax option 43 hex hex string The hex string is assembled by concatenating the TLV values shown below Type Length Value Type isalways f1 hex Length is the number of controller management IP addresses times 4 in hex Value is the IP address of the controller listed sequentially in hex For example suppose that there are two controllers with management interface IP addresses 10 126 126 2 and 10 127 127...

Страница 131: ...e 2 4 GHz frequency band A access point A wireless LAN data transceiver that uses radio waves to connect a wired network with wireless stations ad hoc network A wireless network composed of stations without Access Points antenna gain The gain of an antenna is a measure of the antenna s ability to direct or focus radio energy over a region of space High gain antennas have a more focused radiation p...

Страница 132: ... rates are measured in megabits per second Mbps dBi A ratio of decibels to an isotropic antenna that is commonly used to measure antenna gain The greater the dBi value the higher the gain and the more acute the angle of coverage 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...

Страница 133: ...d on a memory chip G gateway A device that connects two otherwise incompatible networks together GHz Gigahertz One billion cycles per second A unit of measure for frequency 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 a...

Страница 134: ...eral techniques for combining user information with a transmitter s carrier signal multipath The echoes created as a radio signal bounces off of physical objects multicast packet A single data message packet sent to multiple addresses O omni directional This typically refers to a primarily circular antenna radiation pattern Orthogonal Frequency Division Multiplex OFDM A modulation technique used b...

Страница 135: ...antennas to radios S spread spectrum A radio transmission technology that spreads the user information over a much wider bandwidth than otherwise required in order to gain benefits such as improved interference tolerance and unlicensed operation SSID Service Set Identifier also referred to as Radio Network Name A unique identifier used to identify a radio network and which stations must use to be ...

Страница 136: ...Installation Guide OL 8370 04 W WEP Wired Equivalent Privacy An optional security mechanism defined within the 802 11 standard designed to make the link integrity of wireless devices equal to that of a cable workstation A computing device with an installed PC card ...

Страница 137: ...ations of conformity B 1 default configuration resetting 6 7 deployment access points 2 7 process 2 7 DHCP Option 43 7 2 G 1 DHCP pool G 2 discovery process DHCP server 2 4 DNS server 2 4 locally stored 2 4 E Ethernet indicator 6 2 7 3 extended temperature range 2 3 2 4 F FCC Declaration of Conformity B 2 FCC Safety Compliance 2 2 frequency range C 4 G guidelines installation 2 4 I indicators 6 2 ...

Страница 138: ... 2 4 R radio indicator 6 2 7 3 range radio C 5 regulatory information B 1 reloading access point image 6 8 RF exposure B 7 S safety warnings translated A 1 serial cable E 2 Cisco cable E 2 size C 1 status indicators 6 2 7 3 C 1 storage temperature C 2 T temperature operating C 2 storage C 2 terminal emulator 6 13 7 9 TFTP server 6 9 troubleshooting 6 1 7 1 type length value TLV G 2 U unpacking 2 3...

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