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C H A P T E R

 

3-1

Cisco 837 Router and SOHO 97 Router Hardware Installation Guide

78-14781-02

3

Troubleshooting

This chapter describes symptoms of problems that could occur with the Cisco 837 
or SOHO 97 routers, identifies the likely underlying problems, and provides steps 
for solving the problems. The problems are grouped as follows:

Problems During First Startup

Problems After Router Is Running

For more information about problems that could occur with the software, refer to 
the 

Cisco 800 Series Routers Software Configuration Guide

.

Before You Call Your Cisco Reseller

Some of the solutions in this chapter instruct you to contact your Cisco reseller. 
Before you contact your reseller, make sure that you have the following 
information available:

Router model and serial number (on the back panel)

Maintenance agreement or warranty information

Date you received the router

Brief description of the problem

Brief description of the steps you have taken to solve the problem

Summary of Contents for 837

Page 1: ...0 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Cisco 837 Router and SOHO 97 Router Hardware Installation Guide Customer Order Number DOC 7814781 Text Part Number 78 14781 02 ...

Page 2: ...difying the equipment without Cisco s written authorization may result in the equipment no longer complying with FCC requirements for Class A or Class B digital devices In that event your right to use the equipment may be limited by FCC regulations and you may be required to correct any interference to radio or television communications at your own expense You can determine whether your equipment ...

Page 3: ...t IOS IP TV iQ Expertise the iQ logo iQ Net Readiness Scorecard LightStream Linksys MeetingPlace MGX the Networkers logo Networking Academy Network Registrar Packet PIX Post Routing Pre Routing ProConnect RateMUX ScriptShare SlideCast SMARTnet StrataView Plus TeleRouter The Fastest Way to Increase Your Internet Quotient and TransPath are registered trademarks of Cisco Systems Inc and or its affili...

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Page 5: ...ct Security Overview xiv Reporting Security Problems in Cisco Products xiv Obtaining Technical Assistance xv Cisco Technical Support Website xv Submitting a Service Request xvi Definitions of Service Request Severity xvii Obtaining Additional Publications and Information xvii Product Overview 1 1 Features 1 2 Router Overview 1 3 Front Panels 1 4 Back Panel 1 5 LED Functions 1 6 Installation 2 1 Pr...

Page 6: ...nnecting an ADSL Line 2 13 Connecting a Terminal or PC to the Router s Console Port Optional 2 15 Connecting the AC Adapter 2 16 Connecting the Console Port to an Async Modem 2 18 Using the Router LEDs to Check Links 2 20 Configuring the Router 2 20 Checking the PC Configuration 2 20 Using Cisco Router Web Setup to Configure the Router 2 21 Troubleshooting 3 1 Before You Call Your Cisco Reseller 3...

Page 7: ...vii Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78 14781 02 Contents Ethernet Cable Specifications A 4 Maximum Cable Distances A 4 I N D E X ...

Page 8: ...Contents viii Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78 14781 02 ...

Page 9: ...etworks as quickly as possible Organization This guide is organized as follows Chapter 1 Product Overview Describes the Cisco 837 and SOHO 97 routers and their features Chapter 2 Installation Provides information on preinstallation mounting connecting and configuring of the router and verification of router connections Chapter 3 Troubleshooting Describes problems with the router and how to identif...

Page 10: ...huwingssymbool betekent gevaar U verkeert in een situatie die lichamelijk letsel kan veroorzaken Voordat u aan enige apparatuur gaat werken dient u zich bewust te zijn van de bij elektrische schakelingen betrokken risico s en dient u op de hoogte te zijn van standaard maatregelen om ongelukken te voorkomen Varoitus Tämä varoitusmerkki merkitsee vaaraa Olet tilanteessa joka voi johtaa ruumiinvammaa...

Page 11: ...de Før du utfører arbeid på utstyr må du vare oppmerksom på de faremomentene som elektriske kretser innebærer samt gjøre deg kjent med vanlig praksis når det gjelder å unngå ulykker Aviso Este símbolo de aviso indica perigo Encontra se numa situação que lhe poderá causar danos físicos Antes de começar a trabalhar com qualquer equipamento familiarize se com os perigos relacionados com circuitos elé...

Page 12: ... Routers You might also need to refer to the following documents Cisco IOS Release 12 0 Quality of Service Solutions Configuration Guide Cisco IOS Security Configuration Guide Release 12 0 Obtaining Documentation Cisco documentation and additional literature are available on Cisco com Cisco also provides several ways to obtain technical assistance and other technical resources These sections expla...

Page 13: ...Ordering tool http www cisco com en US partner ordering Cisco Marketplace http www cisco com go marketplace Ordering Documentation You can find instructions for ordering documentation at this URL http www cisco com univercd cc td doc es_inpck pdi htm You can order Cisco documentation in these ways Registered Cisco com users Cisco direct customers can order Cisco product documentation from the Orde...

Page 14: ...in Cisco products Obtain assistance with security incidents that involve Cisco products Register to receive security information from Cisco A current list of security advisories and notices for Cisco products is available at this URL http www cisco com go psirt If you prefer to see advisories and notices as they are updated in real time you can access a Product Security Incident Response Team Real...

Page 15: ... ex act on In an emergency you can also reach PSIRT by telephone 1 877 228 7302 1 408 525 6532 Obtaining Technical Assistance For all customers partners resellers and distributors who hold valid Cisco service contracts Cisco Technical Support provides 24 hour a day award winning technical assistance The Cisco Technical Support Website on Cisco com features extensive online support resources In add...

Page 16: ...the serial number label location highlighted Locate the serial number label on your product and record the information before placing a service call Submitting a Service Request Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information ...

Page 17: ...rs to resolve the situation Severity 3 S3 Operational performance of your network is impaired but most business operations remain functional You and Cisco will commit resources during normal business hours to restore service to satisfactory levels Severity 4 S4 You require information or assistance with Cisco product capabilities installation or configuration There is little or no effect on your b...

Page 18: ...cation from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue streamline their business and expand services The publication identifies the challenges facing these companies and the technologies to help solve them using real world case studies and business strategies to help readers make sound technology investment decisions You can access iQ Mag...

Page 19: ...e and allows the router to detect medium dependent interface in normal mode MDI or medium dependent interface in crossover mode MDIX in any other PC or hub with a straight through cable or a crossover cable The routers are capable of bridging and multiprotocol routing between LAN and WAN ports The dial backup feature allows the user to connect an analog modem to the console port as a backup link t...

Page 20: ...AM 32 MB of SDRAM on board Ease of installation Color coded ports and cables reduce the chance of error Cisco IOS software Supports Cisco IOS software LAN interface Fully compliant with IEEE 802 3 and IEEE 802 3u Automatic MDI MDIX crossover function eliminates the need for crossover cables Cisco Router Web Setup Provides a web based software tool for basic configurations Console port Provides con...

Page 21: ...a wall or vertical surface IPSec Hardware Accelerator Only the Cisco 837 router supports this feature The Hifn 7902 security processor implements symmetric key encryption public key encryption authentication and data compression in hardware Algorithms implemented by the processor include Data Encryption Standard DES and Triple DES 3DES Secure Hash Algorithm SHA 1 Message Digest 5 MD5 Hash based Me...

Page 22: ...de 78 14781 02 Front Panels Figure 1 1 and Figure 1 2 show the front panels of the Cisco 837 and SOHO 97 routers Figure 1 1 Cisco 837 Front Panel Figure 1 2 SOHO 97 Front Panel OK 4 3 2 1 ADSL ETHERNET TXD RXD CD RXD TXD CISCO800 SERIES 82005 OK 4 3 2 1 ADSL ETHERNET TXD RXD CD RXD TXD CISCOSOHO SERIES 82006 ...

Page 23: ... router Figure 1 3 Cisco 837 Back Panel 1 Ethernet port 4 connects to Ethernet network device 5 Console port connects to PC or terminal 2 Ethernet port 3 connects to Ethernet network device 6 ADSL port connects to external wall jack 3 Ethernet port 2 connects to Ethernet network device 7 Input jack connects to desktop power supply 4 Ethernet port 1 connects to Ethernet network device 8 Power on of...

Page 24: ...smits data Off when no data is being uploaded E1 Status Green On when Ethernet 1 connects to the Ethernet interface successfully Blinks when Ethernet 1 receives or sends data or when data passes through Ethernet 1 E2 Status Green On when Ethernet 2 connects to the Ethernet interface successfully Blinks when Ethernet 2 receives or sends data or when data passes through Ethernet 2 E3 Status Green On...

Page 25: ...er Hardware Installation Guide 78 14781 02 2 Installation This chapter provides information on the following topics Preparing for Installation Preventing Damage to the Router Mounting the Router Installing the Router Using the Router LEDs to Check Links ...

Page 26: ...alling the router read the following warnings Warning Only trained and qualified personnel should be allowed to install or replace this equipment Warning Read the installation instructions before you connect the system to its power source Warning Before working on a system that has a standby off switch turn the power to standby and unplug the power cord Warning Before working on equipment that is ...

Page 27: ...type of public network can cause severe injury or damage your router Warning This equipment is not designed for making emergency telephony calls when the power fails Alternative arrangements should be made for access to emergency services Access to emergency services can be affected by any call barring function of this equipment Warning To reduce the risk of fire use only No 26 AWG or larger telec...

Page 28: ...s use the following ESD prevention procedures when removing and replacing components Step 1 Wear an ESD preventive wrist strap that you provide ensuring that it makes good skin contact Caution To properly guard against ESD damage and shocks the wrist strap and cord must operate effectively Always observe the warnings in the Warnings section on page 2 2 Step 2 Do not touch any exposed contact pins ...

Page 29: ...documentation from the Open Me First bag Remove the desktop power supply and the black power cord from the accessory kit Gather the Ethernet devices to be connected to the router hub server workstation or PC Step 3 If you plan to connect an analog telephone or fax machine gather these devices You must also provide the telephone cable to connect each device Step 4 If you plan to configure the softw...

Page 30: ...he color coded cables supplied by Cisco Systems to the color coded ports on the back panel If you must supply your own cable see Appendix A Specifications and Cables for cabling specifications If this appendix does not provide specifications for a particular cable we strongly recommend that you order the cable from Cisco Systems If the symbol of suitability appears above a port you can connect the...

Page 31: ... perform the procedure given in the Installing the Router section on page 2 10 Caution Do not cover or obstruct the router vents which are located on the sides of the router If the vents are covered or obstructed overheating could occur and cause damage to the router Mounting on a Wall You can mount the router on a wall or other vertical surface by using the molded mounting brackets on the bottom ...

Page 32: ...m the wall The following requirements must be met when you mount the router Because the LEDs are used as status and problem indicators the LEDs on the front panel must face upward and must be easily visible The back panel must face down to reduce strain on the cable connections The power supply must rest on a horizontal surface such as the floor or a table If the power supply is not supported stra...

Page 33: ... 78 14781 02 Chapter 2 Installation Mounting the Router To mount the router follow the steps given after Figure 2 2 Figure 2 2 Mounting Router on a Wall 82138 O K 4 3 2 1 E C O M P U T E R S T X D R X D C I S C O 8 0 0 S E R I E S 1 5 6 4 3 2 7 A D S L C D R X D T X D ...

Page 34: ...er you need to perform the following tasks in the following order 1 Connect the Ethernet devices to the router 2 Connect the ADSL line 3 Connect a terminal or PC to the router for software configuration using the command line interface CLI or for troubleshooting 4 Connect the router to the power source 5 Verify the links using the router LEDs 1 Two number six 3 4 in screws 5 Maximum distance betwe...

Page 35: ... after Figure 2 3 to connect the router to a PC with an Ethernet network interface card NIC installed or to connect a server or workstation to the router Figure 2 3 shows a Cisco 837 router but it also applies to a SOHO 97 router The procedure applies to both the Cisco 837 router and the SOHO 97 router The Ethernet port on the Cisco 837 router and the SOHO 97 router supports the auto crossover fun...

Page 36: ... Router Hardware Installation Guide 78 14781 02 Figure 2 3 Connecting a Server PC or Workstation to the Router 1 Cisco 837 router 4 PC 2 Yellow Ethernet cable 5 RJ 45 port on the network interface card NIC 3 Ethernet port 4 ETHERNET 4 3 2 1 Cisco 837 ADSL CONSOLE 82001 2 4 1 3 5 ...

Page 37: ...ion You can connect additional servers PCs or workstations to Ethernet ports 1 2 and 3 To verify the connection check that the Ethernet 1 LED is on after you complete the router installation Connecting an ADSL Line The procedure for connecting an ADSL line depends on the router and in some cases on the location Figure 2 4 shows how to connect the ADSL line to a cable wall jack Follow the steps giv...

Page 38: ...ll Jack Perform the following steps to connect the ADSL line to the router and a cable wall jack Step 1 Connect one end of the ADSL cable line to the ADSL port on the router Step 2 Connect the other end of the RJ 11 cable to the wall jack 1 ADSL port 2 End of the RJ 11 cable that connects to the wall jack 82012 ETHERNET 4 3 2 1 Cisco 837 ADSL 18 VDC CONSOLE 2 1 ON OFF ...

Page 39: ...eps given after Figure 2 5 Figure 2 5 shows a Cisco 837 but it also applies to the SOHO 97 router The connection procedure applies to both the Cisco 837 router and the SOHO 97 router Note Unless you are an experienced network administrator it is recommended that you use the Cisco Router Web Setup software to configure the router Use of this software is described in the Using Cisco Router Web Setup...

Page 40: ...de for instructions on configuring the router Connecting the AC Adapter To connect the power supply follow the steps given after Figure 2 6 Figure 2 6 depicts a Cisco 837 router but it also applies to the SOHO 97 router The connection procedure applies to both the Cisco 837 router and the SOHO 97 router Warning The device is designed to work with TN power systems Warning This product relies on the...

Page 41: ...supply cable to the desktop power adapter Step 3 Plug the power cord of the desktop power adapter into an electrical outlet Note Be sure to use the power supply that was shipped with your router Although you may be able to connect another Cisco power supply to your router that power supply may not provide all the features that are provided by the power supply that shipped with your router 1 Cisco ...

Page 42: ...ink to the WAN port in case the ADSL service goes down The Cisco 837 router supports both the dial backup and remote management features the SOHO 97 supports only the remote management function Note To connect an analog modem to the console port you will need an optional SOHO 800 Series Router Modem Cable Contact your router vendor to order this cable To connect the Cisco 837 router s console port...

Page 43: ...on Installing the Router Figure 2 7 Connecting the Console Port to an Async Modem 1 Cisco 837 router 4 Wall jack 2 Console port 5 Telephone 3 Available port on an async modem ETHERNET 4 3 2 1 Cisco 837 ADSL 18 VDC CONSOLE ON OFF 82568 2 4 5 1 2 ABC 3 DEF 4 5 JKL GHI 6 MNO 7 8 TUV PQRS 9 WXYZ 0 OPER 3 1 ...

Page 44: ...uter to check the links between the router and any attached Ethernet devices or telephones See Table 1 2 on page 1 6 to verify the link status of devices attached to Cisco 837 and SOHO 97 routers Configuring the Router When you finish installing the router you must configure the router software First check the PC configurations to ensure that all the connected PCs will be able to communicate with ...

Page 45: ...ayed out Step 5 Click OK to accept all changes and exit this window Then click OK in the Network window Step 6 To reboot the PC click Yes if you are prompted For more information on how to configure TCP IP refer to the Cisco Router Web Setup Troubleshooting Guide which is available on Cisco com Using Cisco Router Web Setup to Configure the Router Cisco strongly recommends that inexperienced networ...

Page 46: ...ld The address should be in the format 10 10 10 X in which X is a number that is equal to or greater than 2 for example 10 10 10 2 or 10 10 10 3 If the IP address is not in this format verify that an Ethernet adapter name is visible in the Adapter field If there is no name in the field return to Step 3 in the Checking the PC Configuration section on page 2 20 and add TCP to the list of protocols T...

Page 47: ...ndow When the IP Config window appears click Release to release the PC s IP address Then click Renew to renew the PC s IP address Alternatively open the Run window and enter ipconfig release to release the PC s IP address Then enter ipconfig renew to renew the IP address of the PC Step 9 Open a web browser on the PC and connect to a website The router installation is complete when you have connect...

Page 48: ...Chapter 2 Installation Using the Router LEDs to Check Links 2 24 Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78 14781 02 ...

Page 49: ...r Is Running For more information about problems that could occur with the software refer to the Cisco 800 Series Routers Software Configuration Guide Before You Call Your Cisco Reseller Some of the solutions in this chapter instruct you to contact your Cisco reseller Before you contact your reseller make sure that you have the following information available Router model and serial number on the ...

Page 50: ...oblem Improperly connected cable Damaged cable Perform the following steps 1 To make sure that you have cabled the device correctly see the Connecting a Terminal or PC to the Router s Console Port Optional section on page 2 15 2 Make sure that the connectors at both ends of the cable are securely seated 3 Make sure that the cable is not physically damaged If it is damaged order another cable from ...

Page 51: ...hat the cable is not physically damaged If it is damaged order another cable from Cisco Systems or replace it with a similar cable Connection to the ADSL line is intermittent or lost The CD LED on the front panel is off A cable related problem Disconnected cable Damaged cable Make sure that the connectors are secure at both ends of the cable Make sure that the cable is not physically damaged If it...

Page 52: ...Chapter 3 Troubleshooting Problems After Router Is Running 3 4 Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78 14781 02 ...

Page 53: ...s Table A 1 System Specifications Description Design Specification Physical Dimensions Dimensions H x W x D 2 0 x 9 7 x 8 5 in 51 x 246 x 216 mm Weight does not include desktop power supply 1 48 lb 0 67 kg Environmental Operating Ranges Nonoperating temperature 4 to 149 F 20 to 65 C Nonoperating humidity 5 to 95 relative humidity Nonoperating altitude 0 to 15 000 ft 4570 m Operating temperature 32...

Page 54: ...ltimate disposal of this product should be handled according to all national laws and regulations Port Connector Pinouts This section provides pinouts for the following connectors Console for connecting a terminal or PC See Table A 2 ADSL See Table A 3 Router Power AC input voltage 100 to 240 VAC Frequency 50 to 60 Hz Power consumption Maximum of 18W Voltage 18 VDC Table A 1 System Specifications ...

Page 55: ...pment DCE device The default parameters for the console port are as follows 9600 baud Eight data bits No parity One stop bit Table A 3 shows ADSL connector pinouts for the Cisco 837 and SOHO 97 routers 7 DSR 8 CTS Table A 2 Console Connector Pinouts RJ 45 continued Pin Function Table A 3 ADSL Connector Pinouts RJ 11 Pin Function 1 Loopback to pin 6 2 Unused 3 Tip 4 Ring 5 Unused 6 Loopback to pin ...

Page 56: ...e maximum cable distance that may be used in connecting equipment to the router Ethernet Cable Specifications Table A 4 lists the specifications for straight through and crossover Ethernet cables Maximum Cable Distances Table A 5 provides the maximum distance of Ethernet and telephone cables that you can use to connect equipment to the router Table A 4 Ethernet Cable Specifications Type Category 1...

Page 57: ...gure 1 5 C cables included with router 2 5 cables and router damage 2 6 cabling distance maximum table A 4 caution defined x Cisco Router Web Setup 2 21 connecting AC adapter 2 16 console port to async modem 2 18 power supply 2 16 terminal or PC to console port 2 15 console port 1 2 conventions x D damage to the router preventing 2 6 dial backup 1 1 documentation included with router 2 5 dying gas...

Page 58: ...D functions table 1 6 M mounting bracket 2 8 mounting router table 2 7 wall 2 7 N note defined x P PC configuration checking 2 20 pinouts A 2 power description A 2 problems 3 2 power supply connecting 2 16 preinstallation activities 2 5 problems after router is running 3 3 during first startup 3 2 procedure for installing the router 2 10 to 2 17 R related documentation xii router unpacking 2 5 to ...

Page 59: ...rtup problems 3 2 straight through cable 1 1 synchronous DRAM see SDRAM 1 2 T temperature specifications A 1 troubleshooting after router is running 3 3 during first startup 3 2 U unpacking the router 2 5 to 2 5 W wall brackets figure 2 8 wall mounting 2 7 2 9 warning defined x warnings installation 2 2 weight specifications A 1 ...

Page 60: ...Index IN 8 Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78 14781 02 ...

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