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About This Guide xvii
About This Guide
This section discusses the objectives, audience, organization, and conventions of the
Cisco 2500 Series Access Server User Guide.
All Cisco technical documentation and additional literature are available on UniverCD,
Cisco’s online library of product information. UniverCD is updated and shipped monthly,
so it might be more up to date than printed documentation. UniverCD is available both as
a single CD and as an annual subscription. To order UniverCD, contact your local sales
representative or call Customer Service.
Document Objectives
This publication will step you through initial site preparation, installation, configuration
and troubleshooting of the Cisco 2500 series access server. It also covers selected
maintenance procedures, such as replacing single in-line memory modules (SIMMs) and
Flash memory. The appendix “Internetworking Primer” has been included to provide the
required background for getting started with your Cisco 2500 series access server.
Audience
This publication is designed for the person installing the access server, who should be
familiar with electronic circuitry and wiring practices and have experience as an electronic
or electromechanical technician.
For a tutorial on initial software configuration, refer to the appendix “Internetworking
Primer,” and the publication Router Products Getting Started Guide. For more advanced
configuration applications, refer to the Router Products Configuration Guide and the
Router Products Command Reference.
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Resumo do Conteúdo

Página 1 - About This Guide

About This Guide xviiAbout This GuideThis section discusses the objectives, audience, organization, and conventions of theCisco 2500 Series Access Se

Página 2 - Document Organization

1-6 Cisco 2500 Series Access Server User GuideSystem Specifications

Página 3 - Document Conventions

A-42 Cisco 2500 Series Access Server User GuideModemsLine security optionsThe login tacacs command allows for centralized and enhanced security with a

Página 4 - Safety Warnings.”

Internetworking Primer A-43ModemsCommunicating with the ModemYou must establish communication with your modem before you can configure it, whichrequir

Página 5 - Overview of the Cisco 2500

A-44 Cisco 2500 Series Access Server User GuideModemsTesting the Modem ConnectionAfter connecting to the modem with a reverse Telnet, you need to test

Página 6

Internetworking Primer A-45ModemsStep 2 Test Communications with the modem:atOKStep 3 Suspend the Telnet session by entering Ctrl-Shift-6-x:- suspend

Página 7 - Access Server Services

A-46 Cisco 2500 Series Access Server User GuideModemsDetermine the Modem Initialization StringThe initialization string is used to configure the modem

Página 8 - System Specifications

Internetworking Primer A-47ModemsProper DTR InterpretationThe modem must interpret a toggle of the DTR signal as a command to drop any active calland

Página 9

A-48 Cisco 2500 Series Access Server User GuideModemsMost modems use the setting s0=1 to answer the call after one ring. Refer to your modemdocumentat

Página 10 - System Specifications

Internetworking Primer A-49Asynchronous ProtocolsTesting the Dial-In ConnectionThe access server and modem are now correctly configured for dial-in ac

Página 11 - 2500 Series Access Server

A-50 Cisco 2500 Series Access Server User GuideAsynchronous ProtocolsThe EXEC SessionWhen a dial-in user connects to an asynchronous line on the acces

Página 12 - Safety Recommendations

Internetworking Primer A-51Asynchronous ProtocolsConfiguring Asynchronous PortsCisco 2500 series access servers have 8 or 16 asynchronous ports (plus

Página 13 - General Site Requirements

CHAPTER Preparing to Install the Cisco 2500 Series Access Server 2-1Preparing to Install the Cisco2500 Series Access Server2This chapter describes the

Página 14 - Preventive Site Configuration

A-52 Cisco 2500 Series Access Server User GuideAsynchronous ProtocolsModem ConfigurationSee the section “Modems” earlier in this appendix for assistanc

Página 15 - Power Supply Considerations

Internetworking Primer A-53Asynchronous ProtocolsStep 2 Enable IP and IPX (or other protocols) by assigning network numbers. (IP can beconfigured by e

Página 16 - Installation Checklist

A-54 Cisco 2500 Series Access Server User GuideAsynchronous ProtocolsNote For additional information on these commands, see the publication Access Ser

Página 17 - Cabling Considerations

Internetworking Primer A-55Asynchronous ProtocolsARA AuthenticationYou can use the line configuration command autoselect arap to launch ARA protocolau

Página 18 - Distance Limitations

A-56 Cisco 2500 Series Access Server User GuideAsynchronous Protocols!interface asynchronous 1ip unnumbered ethernet 0ipx network B011encapsulation pp

Página 19

APPENDIX Maintaining the Cisco 2500 Series Access Server B-1BMaintaining the Cisco 2500Series Access ServerThis appendix contains information about ma

Página 20 - Ethernet Connections

B-2 Cisco 2500 Series Access Server User GuideOpening the ChassisOpening the ChassisThis section describes the procedure for opening the chassis by re

Página 21 - • Jackscrew connectors

Maintaining the Cisco 2500 Series Access Server B-3Opening the ChassisStep 4 Remove the single screw located on the bottom of the chassis (on the cha

Página 22 - Inspecting the System

B-4 Cisco 2500 Series Access Server User GuideUpgrading the Boot PROMsFigure B-2 System Card Layout—Model 2509Upgrading the Boot PROMsTo replace the b

Página 23 - • Warranty pack

Maintaining the Cisco 2500 Series Access Server B-5Upgrading the Boot PROMsTools and Equipment Required for Replacing the Boot PROMsThe following too

Página 24

2-2 Cisco 2500 Series Access Server User GuideSafety Recommendations• Wear safety glasses if you are working under any conditions that might be hazard

Página 25 - Access Server

B-6 Cisco 2500 Series Access Server User GuideUpgrading the Boot PROMsFigure B-3 Extracting and Inserting Boot PROMsStep 4Insert each new boot PROM in

Página 26 - Required Tools and Parts

Maintaining the Cisco 2500 Series Access Server B-7Installing Primary-Memory DRAM SIMMsFigure B-4 Orienting the Boot PROMs to the SocketStep 5Replace

Página 27 - Installing the Rubber Feet

B-8 Cisco 2500 Series Access Server User GuideInstalling Primary-Memory DRAM SIMMsTools and Equipment RequiredThe following lists the tools required t

Página 28 - Rack-Mounting the Chassis

Maintaining the Cisco 2500 Series Access Server B-9Installing Primary-Memory DRAM SIMMsFigure B-5 Removing and Replacing the DRAM SIMMStep 6Using the

Página 29 - 19-Inch Rack

B-10 Cisco 2500 Series Access Server User GuideReplacing System-Code SIMMsReplacing System-Code SIMMsThe system code (software) is stored on Flash mem

Página 30 - Telco Rack

Maintaining the Cisco 2500 Series Access Server B-11Replacing System-Code SIMMsStep 5 Locate the system-code SIMMs on the system card. The SIMM socke

Página 31 - Wall-Mounting the Chassis

B-12 Cisco 2500 Series Access Server User GuideClosing the ChassisStep 8 Using the system card orientation shown in Figure B-6, position the new SIMMs

Página 32 - Power supply

Maintaining the Cisco 2500 Series Access Server B-13Closing the ChassisReplacing the CoverAfter you perform the maintenance for your system, take the

Página 33 - Connecting to the Network

B-14 Cisco 2500 Series Access Server User GuideRecovering a Lost Enable PasswordStep 5 Reinstall the chassis on the wall, rack, desktop, or table.Step

Página 34

Maintaining the Cisco 2500 Series Access Server B-15Recovering a Lost Enable PasswordNote To recover a lost enable password if Break is disabled on t

Página 35

Preparing to Install the Cisco 2500 Series Access Server 2-3General Site Requirements• Look carefully for possible hazards in your work area, such as

Página 36 - Modem or terminal

B-16 Cisco 2500 Series Access Server User GuideRecovering a Lost Enable PasswordStep 9 Press Return. The boot ROM prompt appears as follows:Router>

Página 37

Maintaining the Cisco 2500 Series Access Server B-17Virtual Configuration Register SettingsVirtual Configuration Register SettingsThe access server ha

Página 38

B-18 Cisco 2500 Series Access Server User GuideVirtual Configuration Register SettingsChanging Configuration Register SettingsYou might want to modify

Página 39 - AUX SER 0 ETH

Maintaining the Cisco 2500 Series Access Server B-19Virtual Configuration Register SettingsStep 2 At the privileged-level system prompt (access serve

Página 40

B-20 Cisco 2500 Series Access Server User GuideVirtual Configuration Register SettingsStep 6 Reboot the access server. The new value takes effect. Con

Página 41 - Configuring the Cisco 2500

Maintaining the Cisco 2500 Series Access Server B-21Virtual Configuration Register SettingsIn the following example, the virtual configuration registe

Página 42 - Contacting Customer Service

B-22 Cisco 2500 Series Access Server User GuideVirtual Configuration Register SettingsBit 8 controls the console Break key. Setting bit 8 (the factory

Página 43 - • Maintenance contract number

Maintaining the Cisco 2500 Series Access Server B-23Copying to Flash MemoryBit 13 determines the server response to a bootload failure. Setting bit 1

Página 44 - • E-mail: [email protected]

B-24 Cisco 2500 Series Access Server User GuideCopying to Flash MemoryIP address or name of remote host [255.255.255.255]? server1Name of tftp filenam

Página 45 - Configuring the Access Server

APPENDIX Cable Specifications C-1CCable SpecificationsThis appendix provides the following pinout information:• Console Port Pinouts (RJ-45), Table C-1

Página 46 - Router> enable

2-4 Cisco 2500 Series Access Server User GuideGeneral Site RequirementsSite EnvironmentThe location of individual chassis and the layout of your equip

Página 47 - Configuring the Access Server

C-2 Cisco 2500 Series Access Server User GuideConsole and Auxiliary Port Signals and PinoutsConsole and Auxiliary Port Signals and PinoutsThe console

Página 48

Cable Specifications C-3Serial Cable Assemblies and PinoutsSerial Cable Assemblies and PinoutsThe following illustrations and tables provide assembly

Página 49

C-4 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsFigure C-1 EIA-530 Serial Cable AssemblyTable C-3 EIA-530 DTE Cable P

Página 50

Cable Specifications C-5Serial Cable Assemblies and PinoutsEIA/TIA-232Figure C-2 shows the EIA/TIA-232 cable assembly; Table C-4 lists the DTE pinout

Página 51

C-6 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsFigure C-2 EIA/TIA-232 Cable AssemblyTable C-4 EIA/TIA-232 DTE Cable

Página 52

Cable Specifications C-7Serial Cable Assemblies and PinoutsTable C-5 EIA/TIA-232 DCE Cable Pinout (DB-60 to DB-25)1. Any pin not referenced is not co

Página 53

C-8 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsEIA/TIA-449Figure C-3 shows the EIA/TIA-449 cable assembly; Table C-6

Página 54

Cable Specifications C-9Serial Cable Assemblies and PinoutsFigure C-3 EIA/TIA-449 Cable AssemblyTable C-6 EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-3

Página 55

C-10 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsTable C-7 EIA/TIA-449 DCE Cable Pinout (DB-60 to DB-37)1. Any pin no

Página 56

Cable Specifications C-11Serial Cable Assemblies and Pinouts1. Any pin not referenced is not connected.J1-24J1-23TxC/RxC+TxC/RxC–Twisted pair no. 9 —

Página 57 - Checking Your Settings

Preparing to Install the Cisco 2500 Series Access Server 2-5General Site Requirements• When mounting a chassis in an open rack, ensure that the rack

Página 58

C-12 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsV.35Figure C-4 shows the V.35 cable assembly; Table C-8 lists the DT

Página 59 - Internetworking Primer

Cable Specifications C-13Serial Cable Assemblies and Pinouts1. Any pin not referenced is not connected.J1-45ShieldCircuit_GND–Twisted pair no. 12 ––J

Página 60 - • Configuration files

C-14 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsTable C-9 V.35 DCE Cable Pinout (DB-60 to 34-Pin)60 Pin1Signal Descr

Página 61

Cable Specifications C-15Serial Cable Assemblies and PinoutsX.21Figure C-5 shows the X.21 cable assembly; Table C-10 lists the DTE pinout; Table C-11

Página 62 - Boot ROM

C-16 Cisco 2500 Series Access Server User GuideSerial Cable Assemblies and PinoutsTable C-11 X.21 DCE Cable Pinout (DB-60 to DB-15)1. Any pin not refe

Página 63 - Command Modes

Cable Specifications C-17Ethernet Cable Assembly and PinoutEthernet Cable Assembly and PinoutFigure C-6 shows an Ethernet (AUI) cable assembly, and T

Página 64 - Privileged EXEC Mode

C-18 Cisco 2500 Series Access Server User GuideToken Ring PinoutToken Ring PinoutTable C-13 lists the pinout for the Token Ring interface port.Table C

Página 65 - Configuration Mode

Cable Specifications C-19Asynchronous Serial PortsAsynchronous Serial PortsFigure C-7 shows the RJ-45 breakout cable with pinouts for the 68-pin SCSI

Página 66 - Configuration Files

C-20 Cisco 2500 Series Access Server User GuideAsynchronous Serial PortsNote The Asynchronous breakout cable is equivalent to a console or auxiliary p

Página 67 - LANs and WANs

Cable Specifications C-21Asynchronous Serial Ports3 1 CTS 472 DSR 133 RXD 464 RXD GND 125 TXD GND 456 TXD 117 DTR 448 RTS 104 1 CTS 512 DSR 173 RXD 5

Página 68

2-6 Cisco 2500 Series Access Server User GuideInstallation ChecklistInstallation ChecklistThe Installation Checklist lists the procedures for initial

Página 69 - LAN Technologies

C-22 Cisco 2500 Series Access Server User GuideAsynchronous Serial Ports6 1 CTS 592 DSR 253 RXD 584 RXD GND 245 TXD GND 576 TXD 237 DTR 568 RTS 227 1

Página 70 - Token Ring LANs

Cable Specifications C-23RJ-45 Adapter PinoutsRJ-45 Adapter PinoutsRefer to Table C-16 for a list of the pins used on the RJ-45-to-DB-25 adapters, us

Página 71 - LAN Addressing

C-24 Cisco 2500 Series Access Server User GuideRJ-45 Adapter PinoutsTable C-16 Pinouts for the RJ-45-to-DB-25 AdaptersTable C-17 Asynchronous Device C

Página 72 - WAN Technologies

APPENDIX Translated Safety Warnings D-1DTranslated Safety WarningsThis appendix repeats in multiple languages the warnings in this publication.Warning

Página 73 - Master Clock Timing

D-2 Cisco 2500 Series Access Server User GuideJewelry Removal WarningWarnung Dieses Warnsymbol bedeutet Gefahr. Sie befinden sich in einer Situation, d

Página 74 - WAN Data Link Layer

Translated Safety Warnings D-3Jewelry Removal WarningVaroitus Ennen kuin työskentelet voimavirtajohtoihin kytkettyjen laitteiden parissa, otapois kai

Página 75 - High-Level Data Link Control

D-4 Cisco 2500 Series Access Server User GuideInstallation WarningInstallation WarningWarning Read the installation instructions before you connect th

Página 76 - Multipoint WAN Technologies

Translated Safety Warnings D-5Circuit Breaker (15A) WarningAdvarsel Utstyret er utfomet til bruk med TN-strømsystemer.Aviso O dispositivo foi criado

Página 77 - • Partially meshed topology

D-6 Cisco 2500 Series Access Server User GuideSELV Circuit WarningAdvarsel Dette produktet er avhengig av bygningens installasjoner avkortslutningsbes

Página 78 - Desktop Protocols

Translated Safety Warnings D-7SELV Circuit WarningVaroitus Portit, joissa on nimet "Ethernet", "10BaseT", "Token Ring",

Página 79 - Routed Protocol Design Goals

Preparing to Install the Cisco 2500 Series Access Server 2-7Creating a Site LogCreating a Site LogThe Site Log provides a record of all actions relev

Página 80

D-8 Cisco 2500 Series Access Server User GuidePower Supply Disconnection Warning¡Atención! Los puertos "Ethernet", "10BaseT", &quo

Página 81 - Routing Protocols

Translated Safety Warnings D-9Power Supply Disconnection WarningAdvarsel Før det utføres arbeid på kabinettet eller det arbeides i nærheten avstrømfo

Página 82 - Internet Protocol

D-10 Cisco 2500 Series Access Server User GuidePower Supply Disconnection WarningAttention Ne pas toucher le bloc d'alimentation quand le cordon

Página 83 - IP Network Numbering

Translated Safety Warnings D-11Lightning Activity WarningLightning Activity WarningWarning Do not work on the system or connect or disconnect cables

Página 84 - IP Routing Protocols

D-12 Cisco 2500 Series Access Server User GuideLightning Activity Warning

Página 85 - IP Configuration Example

2-8 Cisco 2500 Series Access Server User GuideCabling ConsiderationsDistance LimitationsFollowing are the distance limitation specifications for Ethern

Página 86 - IPX Protocol

Preparing to Install the Cisco 2500 Series Access Server 2-9Console and Auxiliary Port ConsiderationsThe use of balanced drivers allows EIA/TIA-449 s

Página 87 - • Novell Link State Protocol

xviii Cisco 2500 Series Access Server User GuideDocument OrganizationDocument OrganizationThe major sections of this user guide are as follows:• Chapt

Página 88 - IPX Data Link Encapsulations

2-10 Cisco 2500 Series Access Server User GuideNetwork Connection ConsiderationsConsole Port ConnectionsEach access server system includes an EIA/TIA-

Página 89 - AppleTalk Protocol

Preparing to Install the Cisco 2500 Series Access Server 2-11Network Connection ConsiderationsYou can use the following equipment to connect to the E

Página 90 - AppleTalk Network Numbering

2-12 Cisco 2500 Series Access Server User GuideInspecting the SystemNote Because of the small size of the pins on the DB-60 serial connector, attempti

Página 91 - AppleTalk Node Numbering

Preparing to Install the Cisco 2500 Series Access Server 2-13Inspecting the System• Warranty pack• UniverCD and optional printed publications, as spe

Página 92 - AppleTalk Directory Services

2-14 Cisco 2500 Series Access Server User GuideInspecting the System

Página 93

CHAPTER Installing the Cisco 2500 Series Access Server 3-1Installing the Cisco 2500 SeriesAccess Server3This chapter guides you through the installati

Página 94

3-2 Cisco 2500 Series Access Server User GuideRequired Tools and PartsRequired Tools and PartsFollowing are the tools and parts required to install th

Página 95 - • Configuring the Modem

Installing the Cisco 2500 Series Access Server 3-3Installing the Rubber FeetInstalling the Rubber FeetThis section explains how to install the rubber

Página 96 - • Modem control (DTR/DCD)

3-4 Cisco 2500 Series Access Server User GuideRack-Mounting the ChassisFigure 3-2 Installing the Rubber FeetRack-Mounting the ChassisDepending on the

Página 97 - Data Transfer (TX/RX)

Installing the Cisco 2500 Series Access Server 3-5Rack-Mounting the Chassis19-Inch RackTo install the chassis in a 19-inch rack with the front panel

Página 98 - Modem Control (DTR/DCD)

About This Guide xixDocument ConventionsDocument ConventionsThis publication uses the following conventions to convey instructions and information:Co

Página 99 - Global commands

3-6 Cisco 2500 Series Access Server User GuideRack-Mounting the ChassisTelco RackTo install the chassis in a 19-inch, center-mount telco rack, attach

Página 100 - Line security options

Installing the Cisco 2500 Series Access Server 3-7Wall-Mounting the ChassisWall-Mounting the ChassisFollowing is the procedure for wall-mounting the

Página 101 - Communicating with the Modem

3-8 Cisco 2500 Series Access Server User GuideWall-Mounting the ChassisFigure 3-8 Wall-Mounting the ChassisH1718Vertical wall studPower supply and fan

Página 102 - Testing the Modem Connection

Installing the Cisco 2500 Series Access Server 3-9Connecting to the NetworkConnecting to the NetworkTake the following steps to connect the access se

Página 103 - Configuring the Modem

3-10 Cisco 2500 Series Access Server User GuideConnecting to the NetworkFigure 3-10 Connecting Token Ring Cables H3543Standard IEEE 802.5connectorDB-9

Página 104 - Correct DCD Operation

Installing the Cisco 2500 Series Access Server 3-11Connecting to the NetworkStep 2 Connect the synchronous serial ports to the modem or CSU/DSU, as s

Página 105 - Proper DTR Interpretation

3-12 Cisco 2500 Series Access Server User GuideConnecting to the NetworkStep 3 Connect the asynchronous breakout cable to one of the 68-pin ports, and

Página 106 - Initializing the Modem

Installing the Cisco 2500 Series Access Server 3-13Connecting the Console Terminal and ModemConnecting the Console Terminal and ModemThe console term

Página 107 - Asynchronous Protocols

3-14 Cisco 2500 Series Access Server User GuideConnecting the Console Terminal and ModemFigure 3-13 Identifying a Roll-Over CableAdditional informatio

Página 108 - Launching Autoselect

Installing the Cisco 2500 Series Access Server 3-15Connecting the Console Terminal and ModemFigure 3-14 Connecting the Console TerminalStep 2Your ter

Página 109 - Configuring Asynchronous Ports

xx Cisco 2500 Series Access Server User GuideDocument ConventionsWarning This warning symbol means danger. You are in a situation that could causebodi

Página 110 - Configuring PPP, SLIP, and ARA

3-16 Cisco 2500 Series Access Server User GuideWhat to Do after Installing the Access Server HardwareConnecting a Modem to the Auxiliary PortThis sect

Página 111

CHAPTER Configuring the Cisco 2500 Series Access Server 4-1Configuring the Cisco 2500Series Access Server4This chapter describes the procedures for con

Página 112 - Serial Line Internet Protocol

4-2 Cisco 2500 Series Access Server User GuideIf You Need More InformationAdditional PublicationsFor more information on configuring the Cisco 2500 ser

Página 113 - Configuration Example

Configuring the Cisco 2500 Series Access Server 4-3If You Need More InformationAvailable 24 hours a day, 7 days a week, CIO provides a wealth of stan

Página 114

4-4 Cisco 2500 Series Access Server User GuideBooting the Access Server for the First Time• Software version level and hardware configuration (enter th

Página 115 - Series Access Server

Configuring the Cisco 2500 Series Access Server 4-5Configuring the Access ServerThere are two commands you can use to do this, depending on the relea

Página 116 - Opening the Chassis

4-6 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerNote You will need to acquire the correct network addresses from your syste

Página 117 - Flat-blade screwdriver

Configuring the Cisco 2500 Series Access Server 4-7Configuring the Access ServerYou can now enter any changes to the configuration that are desired. P

Página 118 - CODE 1 CODE 0

4-8 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerThis functionality is coordinated by your system administrator at the site

Página 119 - • Two boot PROMs

Configuring the Cisco 2500 Series Access Server 4-9Configuring the Access ServerOnce the access server has determined that AutoInstall is not configur

Página 120 - Upgrading the Boot PROMs

CHAPTER Overview of the Cisco 2500 Series Access Server 1-1Overview of the Cisco 2500Series Access Server1The Cisco 2500 series access server is a ful

Página 121

4-10 Cisco 2500 Series Access Server User GuideConfiguring the Access Server cisco Systems, Inc. 170 West Tasman Drive S

Página 122 - • ESD-preventive wrist strap

Configuring the Cisco 2500 Series Access Server 4-11Configuring the Access ServerInterface IP-Address OK? Method Status ProtocolEthernet

Página 123

4-12 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerStep 7 In most cases you will use IP routing. If you are using IP routing,

Página 124 - Replacing System-Code SIMMs

Configuring the Cisco 2500 Series Access Server 4-13Configuring the Access ServerStep 2 Set the line speed and the flow control for the asynchronous l

Página 125

4-14 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerStep 6 Enter yes if you will be using IPX on your asynchronous lines, In t

Página 126 - Closing the Chassis

Configuring the Cisco 2500 Series Access Server 4-15Configuring the Access ServerStep 3 Determine if you are going to enable IPX on this interface, e

Página 127 - Replacing the Cover

4-16 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerConfigure IP unnumbered on this interface? [no]: yes IP address for thi

Página 128

Configuring the Cisco 2500 Series Access Server 4-17Configuring the Access ServerConfiguring interface Async6: Default client IP address for this

Página 129 - Press RETURN to get started!

4-18 Cisco 2500 Series Access Server User GuideConfiguring the Access ServerTo store the configuration or changes to your startup configuration, enter a

Página 130

APPENDIX Internetworking Primer A-1AInternetworking PrimerThis appendix gives an introduction to the technologies used in internetworking. It alsoincl

Página 131

1-2 Cisco 2500 Series Access Server User GuideAccess Server Hardware FeaturesAccess Server Hardware FeaturesThe access server has the following hardwa

Página 132 - • Enable or disable Break

A-2 Cisco 2500 Series Access Server User GuideCisco Internetwork Operating SystemNote To order UniverCD, Cisco’s technical documentation in CD-ROM for

Página 133

Internetworking Primer A-3Cisco Internetwork Operating SystemThe show version command displays the capacity of each kind of memory.Proper operation o

Página 134 - > b [tftp] flash filename

A-4 Cisco 2500 Series Access Server User GuideCisco Internetwork Operating SystemThe configuration register can be used by system administrators to con

Página 135

Internetworking Primer A-5Cisco Internetwork Operating SystemCisco IOSNormal operation of your access server requires the Cisco IOS image to be store

Página 136

A-6 Cisco 2500 Series Access Server User GuideCisco Internetwork Operating SystemEXEC ModesThe command interpreter of Cisco IOS software is called the

Página 137 - Copying to Flash Memory

Internetworking Primer A-7Cisco Internetwork Operating Systemsection “Using the Enable Secret and the Enable Password,” in the chapter “Configuring th

Página 138

A-8 Cisco 2500 Series Access Server User GuideCisco Internetwork Operating SystemSetup ModeYou use the setup facility of Cisco IOS software to streaml

Página 139 - Cable Specifications

Internetworking Primer A-9LANs and WANsThe interaction of the configuration commands is illustrated in Figure A-1.Figure A-1 Configuration Command Inte

Página 140

A-10 Cisco 2500 Series Access Server User GuideLANs and WANsEach layer of the OSI reference model specifies particular network functions such asaddress

Página 141

Internetworking Primer A-11LANs and WANsFor example, the IEEE standard 802.3 (Ethernet) defines the physical layer (connectors,voltages, and binary lo

Página 142

Overview of the Cisco 2500 Series Access Server 1-3Access Server ServicesFigure 1-1 Cisco 2500 Series Access Server (Model 2511 Shown)Access Server S

Página 143 - EIA/TIA-232

A-12 Cisco 2500 Series Access Server User GuideLANs and WANsEthernet LANsThe IEEE has established Ethernet as standard 802.3. Ethernet uses a 10-Mbps

Página 144

Internetworking Primer A-13LANs and WANsConfiguring Token RingThe only option you must configure Token Ring interfaces is the ring speed. The following

Página 145

A-14 Cisco 2500 Series Access Server User GuideLANs and WANsIn addition to data link layer addressing, network protocols (Layer 3) were developed toal

Página 146 - EIA/TIA-449

Internetworking Primer A-15LANs and WANsFigure A-4 A Typical WAN ArchitectureWAN Physical Layer (Layer 1)Most WANs require an interconnection that is

Página 147

A-16 Cisco 2500 Series Access Server User GuideLANs and WANsNote The cable used on the access server port will configure the port as DTE or DCE. Ifit i

Página 148

Internetworking Primer A-17LANs and WANsPoint-to-Point WANsPoint-to-point WANs only allow two endnodes on the WAN connection (as shown inFigure A-6).

Página 149

A-18 Cisco 2500 Series Access Server User GuideLANs and WANsPoint-to-Point ProtocolPPP encapsulation provides Cisco IOS software to devices that are n

Página 150

Internetworking Primer A-19LANs and WANsFigure A-7 Multipoint WANFrame RelayFrame Relay is a packet-switching data communications technology that can

Página 151

A-20 Cisco 2500 Series Access Server User GuideDesktop ProtocolsFrame Relay WANs should be carefully designed with the above considerations in mind.(s

Página 152

Internetworking Primer A-21Desktop ProtocolsRouted Protocol Design GoalsEach of these three desktop protocols was designed with a common set of goals

Página 153

1-4 Cisco 2500 Series Access Server User GuideSystem SpecificationsTerminal ServicesTerminal services provide terminal-to-host connectivity with virtu

Página 154

A-22 Cisco 2500 Series Access Server User GuideDesktop ProtocolsFigure A-8 Network Numbering Plan for IP, IPX, and AppleTalkNode Addressing and Data L

Página 155

Internetworking Primer A-23Desktop ProtocolsThe ARP (or AARP) address mapping process is illustrated in Figure A-9 and works asfollows:1 A node needs

Página 156 - Token Ring Pinout

A-24 Cisco 2500 Series Access Server User GuideDesktop ProtocolsThe function of the routing protocol is to build a complete routing table in each acce

Página 157

Internetworking Primer A-25Desktop ProtocolsDesign and administration of an IP network requires an understanding of IP subnetting.Review the document

Página 158

A-26 Cisco 2500 Series Access Server User GuideDesktop ProtocolsFigure A-11 IP Subnetting PlanIP Node NumberingIP uses the bits to the right of the su

Página 159

Internetworking Primer A-27Desktop ProtocolsThe IP routing protocol options are as follows:• Routing Information Protocol (RIP)• Interior Gateway Rou

Página 160

A-28 Cisco 2500 Series Access Server User GuideDesktop ProtocolsBecause Router D and Router C share a data link, they must agree on the IP network and

Página 161 - Pin 1 and pin 8

Internetworking Primer A-29Desktop ProtocolsFigure A-12 IPX Network Numbering PlanIPX Node NumberingIPX uses a 48-bit address for the node. The IPX d

Página 162

A-30 Cisco 2500 Series Access Server User GuideDesktop ProtocolsIPX Directory ServicesNovell servers advertise their presence throughout the IPX inter

Página 163 - Translated Safety Warnings

Internetworking Primer A-31Desktop ProtocolsFor Novell NetWare 3.x and earlier versions, the default encapsulation was Ethernet_II. Asof Netware 4.x,

Página 164 - Jewelry Removal Warning

Overview of the Cisco 2500 Series Access Server 1-5System Specifications1. BTU = British thermal unit.2. NRZ = nonreturn to zero; NRZI = nonreturn to

Página 165

A-32 Cisco 2500 Series Access Server User GuideDesktop ProtocolsAppleTalk Network NumberingAppleTalk uses a 16-bit number to uniquely identify network

Página 166 - TN Power Statement

Internetworking Primer A-33Desktop ProtocolsFigure A-13 AppleTalk Numbering and Zone Naming PlanAppleTalk Node NumberingThe AppleTalk node address is

Página 167 - Circuit Breaker (15A) Warning

A-34 Cisco 2500 Series Access Server User GuideDesktop ProtocolsAppleTalk Routing ProtocolsSeveral AppleTalk routing protocols are available, includin

Página 168 - SELV Circuit Warning

Internetworking Primer A-35Desktop ProtocolsIn order to configure AppleTalk correctly, all AppleTalk access server or router interfaceson a data link

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A-36 Cisco 2500 Series Access Server User GuideDesktop ProtocolsEnter the command show apple zone to look at the zone information table of the accesss

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Internetworking Primer A-37ModemsModemsModems are used with access servers to allow remote nodes and remote LANs to connectto internetworks across Pu

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A-38 Cisco 2500 Series Access Server User GuideModemsRJ-45 CablingThe access server uses high-density, 68-pin connectors with an 8-connector breakout

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Internetworking Primer A-39ModemsBoth the access server and the modem must be configured for correct operation on each ofthe pairs of wires. Understan

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A-40 Cisco 2500 Series Access Server User GuideModemsHardware Flow Control (RTS/CTS)Hardware flow control is used between the access server and the mod

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Internetworking Primer A-41ModemsConfiguring the LineThe goal of line configuration is to prepare the line to test dial-in access to an EXECsession. In

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