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Cisco Systems 2600 manual DEFAULTGATEWAY=172.16.19.1

Models: 2600

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Appendix B Using the ROM Monitor

Recovering Cisco IOS Software Images

Note Specify the TR_SPEED_MODE variable only for routers with a Token Ring network interface; or for routers with both an Ethernet and a Token Ring port, those routers that are set to use the Token Ring port with the tftpdnld command.

•TR_1E1R_PORT—Sets the port to be used with the tftpdnld command. 0=Use Ethernet port; 1=Use Token Ring port. The default is 0.

Note Specify the TR_1E1R_PORT variable only for those routers with both an Ethernet and a Token Ring port.

Step 2 Enter the tftpdnld [-h] [-r] command:

Options include the following:

•h—Displays the tftpdnld command help screen.

•r—Loads the Cisco IOS software image only to DRAM and launches the image without writing the image into flash memory.

rommon 6> tftpdnld

IP_ADDRESS=172.15.19.11

IP_SUBNET_MASK=255.255.255.0

DEFAULT_GATEWAY=172.16.19.1

TFTP_SERVER=172.15.20.10

TFTP_FILE=/tftpboot/2600-i-mz

Invoke this command for disaster recovery only.

WARNING: all existing data in all partitions on flash will be lost!

Do you wish to continue? y/n: [n]:

Step 3 Enter y to download the Cisco IOS software image. When the process is complete, the ROM monitor mode prompt appears on your screen.

rommon 7>

The router is now ready to boot from the Cisco IOS image. Enter the boot ROM monitor command to reboot the router.

Cisco 2600 Series Routers Hardware Installation Guide

	B-12	OL-2171-06

Image 92

Cisco Systems 2600 manual DEFAULTGATEWAY=172.16.19.1

Contents

Cisco 2600 Series Routers Hardware Installation Guide Corporate HeadquartersCisco 2600 Series Routers Hardware Installation Guide N T E N T S IiiSerial DTE or DCE Devices Initial Configuration Using the Setup Command Facility Procedure for the tftpdnld Command Configuration Register Objectives ViiAudience OrganizationConventions Chapter Title DescriptionSafety Warnings Bewaar Deze InstructiesWarnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaAviso Instruções Importantes DE Segurança Guarde Estas InstruçõesGEM Disse Anvisninger XiiXiii Related Documentation XivCisco Product Document Title Cisco 90-Day Limited Hardware Warranty Terms Duration of Hardware WarrantyReplacement, Repair, or Refund Policy for Hardware XviObtaining Documentation Documentation FeedbackCisco.com Ordering DocumentationSubmitting a Service Request Obtaining Technical AssistanceCisco Technical Support Website XviiiXix Definitions of Service Request SeverityObtaining Additional Publications and Information Preface Obtaining Additional Publications and Information Hardware Features Overview of Cisco 2600 Series RoutersAdvanced CiscoPower Reading the Front-Panel LEDsRPS ActivityPWR SYS/RPSReading the Rear-Panel LEDs ACTCisco 2613-Rear-Panel LEDs FDX LinkACT Modules, Interface Cards, and Memory CF1Interface Numbering WAN and LAN Interface Numbering11 Interface Numbering in Chassis with 1-RU Height Voice Interface Numbering System SpecificationsDescription Specification Regulatory Compliance Safety Recommendations Safety with ElectricityPreventing Electrostatic Discharge Damage Power Supply Considerations Power Source Input Power Tolerance LimitsGeneral Site Requirements Site EnvironmentEquipment Racks Installation ChecklistSite Configuration Creating a Site Log Task Verified by DateTools and Equipment for Installation and Maintenance Inspecting the RouterConsole and Auxiliary Port Considerations Console Port ConnectionsPreparing to Connect to a Network Auxiliary Port ConnectionsEthernet Connections Token Ring ConnectionsSerial DTE or DCE Devices Configuring Serial ConnectionsSerial Connections Device Type Gender Typical Devices Signaling Standards SupportedDistance Limitations Isdn BRI Connections Asynchronous/Synchronous Serial Module Baud RatesEIA/TIA-232 Distance EIA-530 Distance Rate bps Feet Meters56-K/Switched-56-kbps DSU/CSU Connections Low-Capacitance CableOL-2171-06 Installing the Router Installing Modules, Interface Cards, and Power Supplies For network modulesFor WICs and VICs For AIMsSetting Up the Chassis Setting the Chassis on a DesktopFor internal power supplies For external power suppliesMounting the Chassis in a Rack Right To the other side of the chassis. Brackets for 19-inch rack Brackets for 19-inch rack To the other side of the chassis Attaching the Brackets to a Router of 2-RU Height Use two screws on each side For 19-inch rack Right bracketInstalling the Router in a Rack V0 ENAttaching Wall-Mount Brackets to the Router Mounting the Chassis on the WallAttaching Rubber Feet to the Router Mounting the Router on the Wall 16 Attaching the Wall-Mount BracketsInstalling the Chassis Ground Connection 17 Mounting the Chassis on the WallRing terminal Power Connections Connecting Routers to AC PowerConnecting Routers to a DC-Input Power Supply DC Wiring RequirementsRouter DC Input DC Input Wire Size1 15A, 120VAC 10A, 240VAC. StatementWiring Procedure for DC Input Connecting WAN, LAN, and Voice Cables Connecting Routers to the Cisco Redundant Power SystemPorts and Cabling Port or Connection Port Type, Color Connected To CableLAN, WAN, and Voice Connection Procedures Connecting to a Console Terminal or Modem Connecting to the Console PortConnecting to the Auxiliary Port 23 Connecting to a Console Terminal24 Connecting a Modem to the Auxiliary Port Identifying a Rollover CablePowering Up the Router Checklist for Power UpFront Panel Indicators Routers with 1-RU Chassis HeightPower-Up Procedure Routers with 2-RU Chassis HeightConfiguring the Router Initial Configuration Using SDM Initial Configuration Using the Setup Command FacilityEnter a hostname for the router this example uses Initial Configuration Using the CLI Manual Configuration Configuration is displayedTo proceed with manual configuration using the CLI, enter no OL-2171-06 Troubleshooting Isolating ProblemsTroubleshooting the Power and Cooling Systems Environmental Reporting FeaturesTroubleshooting Modules, Cables, and Connections Cisco Technical Assistance Center Recovering a Lost PasswordSystem Messages Using the ROM Monitor Entering ROM Monitor ModeROM Monitor Commands Enter ROM Monitor Mode by Using the reload CommandROM Monitor Command Syntax Conventions Command abcBoot Commands in the ROM Monitor ROM Monitor Command DescriptionsRouter Management Commands Informational Commands in the ROM Monitor Debugging Commands Other Useful ROM Monitor CommandsConfiguration Register Commands Modifying the Configuration Register in Menu ModeRecovering Cisco IOS Software Images Modifying the Configuration Register by Hexidecimal EntryCopying an Image from the Console Using the xmodem Command Description and Options of the xmodem CommandProcedure for the xmodem Command Console RequirementsRestrictions on the tftpdnld Command Procedure for the tftpdnld Command Specify the required variables, for exampleDEFAULTGATEWAY=172.16.19.1 Nvram Configuration Register SettingsBit Number Hexadecimal Meaning Changing Configuration Register Settings Configuring the Boot Field Boot Field MeaningBit Address net host Enabling Booting from Flash Memory Baud BitOL-2171-06 Numerics IN-1Dram IN-2Isdn BRI LANLink LED IN-3Sdram IN-4IN-5 IN-6