Cisco 837 Router And SOHO 97 Router Hardware Installation Guide

PrefaceWarnungDieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, diezu einer Körperverletzung führen könnte. Bevor Sie mit der Arbeit anirgendeinem Gerät beginnen, seien Sie sich der mit elektrischenStromkreisen verbundenen Gefahren und der Standardpraktiken zurVermeidung von Unfällen bewußt.AvvertenzaQuesto simbolo di avvertenza indica un pericolo. La situazione potrebbecausare infortuni alle persone. Prima di lavorare su qualsiasiapparecchiatura, occorre conoscere i pericoli relativi ai circuiti elettrici edessere al corrente delle pratiche standard per la prevenzione di incidenti.AdvarselDette varselsymbolet betyr fare. Du befinner deg i en situasjon som kan føretil personskade. Før du utfører arbeid på utstyr, må du vare oppmerksom på defaremomentene som elektriske kretser innebærer, samt gjøre deg kjent medvanlig praksis når det gjelder å unngå ulykker.AvisoEste símbolo de aviso indica perigo. Encontra-se numa situação que lhepoderá causar danos físicos. Antes de começar a trabalhar com qualquerequipamento, familiarize-se com os perigos relacionados com circuitoseléctricos, e com quaisquer práticas comuns que possam prevenir possíveisacidentes.¡Atención!Varning!Este símbolo de aviso significa peligro. Existe riesgo para su integridadfísica. Antes de manipular cualquier equipo, considerar los riesgos queentraña la corriente eléctrica y familiarizarse con los procedimientosestándar de prevención de accidentes.Denna varningssymbol signalerar fara. Du befinner dig i en situation som kanleda till personskada. Innan du utför arbete på någon utrustning måste du varamedveten om farorna med elkretsar och känna till vanligt förfarande för attförebygga skador.Cisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-02xi

PrefaceObtaining DocumentationRelated DocumentationIn addition to this Cisco 837 Routers and SOHO 97 Hardware Installation Guide,the documentation for the Cisco 837 and SOHO 97 routers includes the following: Cisco 837 Router and SOHO 97 Router Cabling and Setup Quick Start Guide Cisco 800 Series Routers Software Configuration Guide Upgrading Memory in Cisco 800 Series Routers Regulatory Compliance and Safety Information for Cisco 800 Series andSOHO Series RoutersYou 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 12.0Obtaining DocumentationCisco documentation and additional literature are available on Cisco.com. Ciscoalso provides several ways to obtain technical assistance and other technicalresources. These sections explain how to obtain technical information from CiscoSystems.Cisco.comYou can access the most current Cisco documentation at this URL:http://www.cisco.com/univercd/home/home.htmYou can access the Cisco website at this URL:http://www.cisco.comYou can access international Cisco websites at this URL:http://www.cisco.com/public/countries languages.shtmlCisco 837 Router and SOHO 97 Router Hardware Installation Guidexii78-14781-02

PrefaceDocumentation FeedbackDocumentation DVDCisco documentation and additional literature are available in a DocumentationDVD package, which may have shipped with your product. The DocumentationDVD is updated regularly and may be more current than printed documentation.The Documentation DVD package is available as a single unit.Registered Cisco.com users (Cisco direct customers) can order a CiscoDocumentation DVD (product number DOC-DOCDVD ) from the Ordering toolor Cisco Marketplace.Cisco Ordering isco dering DocumentationYou can find instructions for ordering documentation at this URL:http://www.cisco.com/univercd/cc/td/doc/es inpck/pdi.htmYou can order Cisco documentation in these ways: Registered Cisco.com users (Cisco direct customers) can order Cisco productdocumentation from the Ordering tool:http://www.cisco.com/en/US/partner/ordering/ Nonregistered Cisco.com users can order documentation through a localaccount representative by calling Cisco Systems Corporate Headquarters(California, USA) at 408 526-7208 or, elsewhere in North America, bycalling 1 800 553-NETS (6387).Documentation FeedbackYou can send comments about technical documentation to bug-doc@cisco.com.Cisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-02xiii

PrefaceCisco Product Security OverviewYou can submit comments by using the response card (if present) behind the frontcover of your document or by writing to the following address:Cisco SystemsAttn: Customer Document Ordering170 West Tasman DriveSan Jose, CA 95134-9883We appreciate your comments.Cisco Product Security OverviewCisco provides a free online Security Vulnerability Policy portal at this URL:http://www.cisco.com/en/US/products/products security vulnerability policy.htmlFrom this site, you can perform these tasks: Report security vulnerabilities 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 atthis URL:http://www.cisco.com/go/psirtIf you prefer to see advisories and notices as they are updated in real time, youcan access a Product Security Incident Response Team Really Simple Syndication(PSIRT RSS) feed from this URL:http://www.cisco.com/en/US/products/products psirt rss feed.htmlReporting Security Problems in Cisco ProductsCisco is committed to delivering secure products. We test our products internallybefore we release them, and we strive to correct all vulnerabilities quickly. If youthink that you might have identified a vulnerability in a Cisco product, contactPSIRT: Emergencies — security-alert@cisco.comCisco 837 Router and SOHO 97 Router Hardware Installation Guidexiv78-14781-02

PrefaceObtaining Technical Assistance TipNonemergencies — psirt@cisco.comWe encourage you to use Pretty Good Privacy (PGP) or a compatible product toencrypt any sensitive information that you send to Cisco. PSIRT can work fromencrypted information that is compatible with PGP versions 2.x through 8.x.Never use a revoked or an expired encryption key. The correct public key to usein your correspondence with PSIRT is the one that has the most recent creationdate in this public key server list:http://pgp.mit.edu:11371/pks/lookup?search psirt%40cisco.com&op index&exact onIn an emergency, you can also reach PSIRT by telephone: 1 877 228-7302 1 408 525-6532Obtaining Technical AssistanceFor all customers, partners, resellers, and distributors who hold valid Ciscoservice contracts, Cisco Technical Support provides 24-hour-a-day,award-winning technical assistance. The Cisco Technical Support Website onCisco.com features extensive online support resources. In addition, CiscoTechnical Assistance Center (TAC) engineers provide telephone support. If youdo not hold a valid Cisco service contract, contact your reseller.Cisco Technical Support WebsiteThe Cisco Technical Support Website provides online documents and tools fortroubleshooting and resolving technical issues with Cisco products andtechnologies. The website is available 24 hours a day, 365 days a year, at thisURL:http://www.cisco.com/techsupportCisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-02xv

PrefaceObtaining Technical AssistanceAccess to all tools on the Cisco Technical Support Website requires a Cisco.comuser ID and password. If you have a valid service contract but do not have a userID or password, you can register at this oNoteUse the Cisco Product Identification (CPI) tool to locate your product serialnumber before submitting a web or phone request for service. You can access theCPI tool from the Cisco Technical Support Website by clicking the Tools &Resources link under Documentation & Tools. Choose Cisco ProductIdentification Tool from the Alphabetical Index drop-down list, or click theCisco Product Identification Tool link under Alerts & RMAs. The CPI tooloffers three search options: by product ID or model name; by tree view; or forcertain products, by copying and pasting show command output. Search resultsshow an illustration of your product with the serial number label locationhighlighted. Locate the serial number label on your product and record theinformation before placing a service call.Submitting a Service RequestUsing the online TAC Service Request Tool is the fastest way to open S3 and S4service requests. (S3 and S4 service requests are those in which your network isminimally impaired or for which you require product information.) After youdescribe your situation, the TAC Service Request Tool provides recommendedsolutions. If your issue is not resolved using the recommended resources, yourservice request is assigned to a Cisco TAC engineer. The TAC Service RequestTool is located at this tFor S1 or S2 service requests or if you do not have Internet access, contact theCisco TAC by telephone. (S1 or S2 service requests are those in which yourproduction network is down or severely degraded.) Cisco TAC engineers areassigned immediately to S1 and S2 service requests to help keep your businessoperations running smoothly.To open a service request by telephone, use one of the following numbers:Asia-Pacific: 61 2 8446 7411 (Australia: 1 800 805 227)EMEA: 32 2 704 55 55USA: 1 800 553-2447Cisco 837 Router and SOHO 97 Router Hardware Installation Guidexvi78-14781-02

PrefaceObtaining Additional Publications and InformationFor a complete list of Cisco TAC contacts, go to this itions of Service Request SeverityTo ensure that all service requests are reported in a standard format, Cisco hasestablished severity definitions.Severity 1 (S1)—Your network is “down,” or there is a critical impact to yourbusiness operations. You and Cisco will commit all necessary resources aroundthe clock to resolve the situation.Severity 2 (S2)—Operation of an existing network is severely degraded, orsignificant aspects of your business operation are negatively affected byinadequate performance of Cisco products. You and Cisco will commit full-timeresources during normal business hours to resolve the situation.Severity 3 (S3)—Operational performance of your network is impaired, but mostbusiness operations remain functional. You and Cisco will commit resourcesduring normal business hours to restore service to satisfactory levels.Severity 4 (S4)—You require information or assistance with Cisco productcapabilities, installation, or configuration. There is little or no effect on yourbusiness operations.Obtaining Additional Publications and InformationInformation about Cisco products, technologies, and network solutions isavailable from various online and printed sources. Cisco Marketplace provides a variety of Cisco books, reference guides, andlogo merchandise. Visit Cisco Marketplace, the company store, at this URL:http://www.cisco.com/go/marketplace/ Cisco Press publishes a wide range of general networking, training andcertification titles. Both new and experienced users will benefit from thesepublications. For current Cisco Press titles and other information, go to CiscoPress at this URL:http://www.ciscopress.comCisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-02xvii

PrefaceObtaining Additional Publications and Information Packet magazine is the Cisco Systems technical user magazine formaximizing Internet and networking investments. Each quarter, Packetdelivers coverage of the latest industry trends, technology breakthroughs, andCisco products and solutions, as well as network deployment andtroubleshooting tips, configuration examples, customer case studies,certification and training information, and links to scores of in-depth onlineresources. You can access Packet magazine at this URL:http://www.cisco.com/packet iQ Magazine is the quarterly publication from Cisco Systems designed tohelp growing companies learn how they can use technology to increaserevenue, streamline their business, and expand services. The publicationidentifies the challenges facing these companies and the technologies to helpsolve them, using real-world case studies and business strategies to helpreaders make sound technology investment decisions. You can access iQMagazine at this URL:http://www.cisco.com/go/iqmagazine Internet Protocol Journal is a quarterly journal published by Cisco Systemsfor engineering professionals involved in designing, developing, andoperating public and private internets and intranets. You can access theInternet Protocol Journal at this URL:http://www.cisco.com/ipj World-class networking training is available from Cisco. You can viewcurrent offerings at this Cisco 837 Router and SOHO 97 Router Hardware Installation Guidexviii78-14781-02

C H A P T E R1Product OverviewThe Cisco 837 and SOHO 97 routers are asymmeric digital subscriber line(ADSL)–over–plain old telephone service (POTS) routing devices. They have anintegrated 4-port Ethernet switch for the LAN and an ADSL physical interface forthe WAN, allowing the routers to connect a corporate telecommuter or smalloffice to corporate LANs and the Internet.The routers support high-speed encryption, the10/100BASE-T switch, and dialbackup functionality via the auxiliary console port. The autosensing function inthese routers eliminates the need for a crossover cable and allows the router todetect medium dependent interface in normal mode (MDI) or medium dependentinterface in crossover mode (MDIX) in any other PC or hub with astraight-through cable or a crossover cable. The routers are capable of bridgingand multiprotocol routing between LAN and WAN ports.The dial backup feature allows the user to connect an analog modem to theconsole port as a backup link to the WAN in case the ADSL service goes down.This feature gives the Cisco 837 and SOHO 97 routers a high level of performanceand security.The Cisco 837 router is designed with both hardware-based and software-basedencryption, while the SOHO 97 router supports only software-based encryption.The Cisco 837 routers support the addition of Flash memory or DRAM, either asa factory upgrade or a field-installed option. SOHO 97 routers have a fixedmemory configuration.Cisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-021-1

Chapter 1Product OverviewFeaturesFeaturesTable 1-1 summarizes the features of the Cisco 837 and SOHO 97 routers.Table 1-1Feature Summary for Cisco 837 and SOHO 97 RoutersFeatureDescription10/100BASE-T EthernetswitchProvides connection to 10BASE-T (10-Mbps) or 100BASE-T(100-Mbps) Ethernet networks. Compatible with 10/100-Mbps devices.ADSL portProvides connection to ADSL network. Does not support auto-switchfunction.Flash memory8 MB of Flash memory; up to 16 MB of expandable Flash memory onthe Flash module.Synchronous dynamicRAM (SDRAM)32 MB of SDRAM on board.Ease of installationColor-coded ports and cables reduce the chance of error.Cisco IOS softwareSupports Cisco IOS software.LAN interfaceFully compliant with IEEE 802.3 and IEEE 802.3u. AutomaticMDI/MDIX crossover function eliminates the need for crossovercables.Cisco Router Web SetupProvides a web-based software tool for basic configurations.Console portProvides connection to terminal or PC for troubleshooting and forsoftware configuration using a command-line interface. This port isconfigured as a data communication equipment (DCE) port with thehardware handshake.Dying gaspProvides dying gasp function. If the router is about to lose power, thisfunction detects the situation and sends a signal to warn the digitalsubscriber line access multiplexers (DSLAM) about the impending linedrop.Cisco 837 Router and SOHO 97 Router Hardware Installation Guide1-278-14781-02

Chapter 1Product OverviewRouter OverviewTable 1-1Feature Summary for Cisco 837 and SOHO 97 Routers (continued)FeatureDescriptionWall-mounting featureBrackets on the router bottom provide for mounting the router on a wallor vertical surface.IPSec HardwareAcceleratorOnly the Cisco 837 router supports this feature. The Hifn 7902 securityprocessor implements symmetric key encryption, public keyencryption, authentication, and data compression in hardware.Algorithms implemented by the processor include Data EncryptionStandard (DES) and Triple DES (3DES); Secure Hash Algorithm(SHA-1), Message Digest 5 (MD5), Hash-based MessageAuthentication Code (HMAC); and Lempel-Ziv-Stac (LZS)compression and Microsoft Point-to-Point Compression (MPPC).Router OverviewThe following section shows the front and back panels of the Cisco 837 router andthe SOHO 97 router. The Cisco 837 router and the SOHO 97 router each have fourEthernet ports.Cisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-021-3

Chapter 1Product OverviewRouter OverviewFront PanelsFigure 1-1 and Figure 1-2 show the front panels of the Cisco 837 and SOHO 97routers.Figure 1-1Cisco 837 Front PanelOKCD RXDTXD1234ETHER RXD TXDNET82005ADSLCISCO 800 SERIESFigure 1-2SOHO 97 Front PanelOKCD RXDTXD1234ETHERN RXDETCISCO SOTXD82006ADSLHO SERIESCisco 837 Router and SOHO 97 Router Hardware Installation Guide1-478-14781-02

Chapter 1Product OverviewRouter OverviewBack PanelFigure 1-3 shows the back panel of the Cisco 837 router. The back panel of theSOHO 97 router looks the same as the back panel of the Cisco 837 router.Cisco 837 Back PanelETHERNETCONSOLE431ADSL2132Cisco 837 18 VDC82007Figure 1-3564781Ethernet port 4 connects toEthernet network device5Console port connects to PC orterminal2Ethernet port 3 connects toEthernet network device6ADSL port connects to externalwall jack3Ethernet port 2 connects toEthernet network device7Input jack connects to desktoppower supply4Ethernet port 1 connects toEthernet network device8Power on/off buttonCisco 837 Router and SOHO 97 Router Hardware Installation Guide78-14781-021-5

Chapter 1Product OverviewRouter OverviewLED FunctionsTable 1-2 summarizes the functions of the LEDs on the Cisco 837 router and theSOHO 97 router.Table 1-2Functions of LEDs on the Cisco 837 Router and SOHO 97 RouterLEDColorFunctionPWR OKGreen On when DC power is being supplied to the router. The light blinks if an erroroccurs during boot-up.ADSL CDGreen On when the ADSL carrier detects status and connects to Digital SubscriberLine Access Multiplexer (DSLAM) successfully.ADSL RxDGreen Blinks when the ADSL receives data.ADSL TxDGreen Blinks when the ADSL transmits data. Off when no data is being uploaded.E1 StatusGreen On when Ethernet 1 connects to the Ethernet interface successfully. Blinkswhen Ethernet 1 receives or sends data, or when data passes throughEthernet 1.E2 StatusGreen On when Ethernet 2 connects to the Ethernet interface successfully. Blinkswhen Ethernet 2 receives or sends data, or when data passes throughEthernet 2.E3 StatusGreen On when Ethernet 3 connects to the Ethernet interface successfully. Blinkswhen Ethernet 3 receives or sends data, or when data passes throughEthernet 3.E4 StatusGreen On when Ethernet 4 connects to the Ethernet interface successfully. Blinkswhen Ethernet 4 receives or sends data, or when data passes throughEthernet 4.LAN RxDGreen Blinks when the

Contents vi Cisco 837 Router and SOHO 97 Router Hardware Installation Guide 78-14781-02 Warnings 2-2 Preventing Electrostatic Discharge Damage 2-4 Unpacking the Box 2-5 Preventing Damage to the Router 2-6 Mounting the Router 2-7 Mounting on a Table 2-7 Mounting on a Wall 2-7 Installing the Router 2-10 Connecting Ethernet Devices 2-11 Connecting a Server, PC, or Workstation 2-11