System Messages, Recovering a Lost Password | Cisco Systems 2600

Appendix A Troubleshooting

System Messages

System Messages

This section describes system error and recovery messages that may appear when operating a Cisco 2600 series router. Error messages for Cisco 2600 series routers powered by the Cisco redundant power system are described in the publication Cisco RPS Installation Guide.

The Cisco IOS software displays system error and recovery messages on an external device console terminal screen. (For more information, see the “Connecting to a Console Terminal or Modem” section on page 3-20.)

The terminal should display one of the following prompts:

Router> (indicates user EXEC mode)

or

Router# (indicates privileged EXEC mode)

The Cisco IOS software checks the system condition once every 30 seconds. If the condition still exists, the system error message reappears; if the system error condition has cleared, a recovery message appears.

To see descriptions of the system error and recovery messages and LED conditions that might accompany them, refer to the Cisco IOS System Error Messages online document at the following URL:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122sup/122sems/semsvol1/emfbgp.

htm#xtocid10

Recovering a Lost Password

You can recover a lost enable password, but an enable secret password is encrypted and is not recoverable. If you lose an enable secret password that is configured on your router, you can replace it with a new enable secret password.

For password recovery and replacement procedures for the Cisco 2600 series routers, refer to the Password Recovery Procedure for the Cisco 2600 Series Routers document at the following URL:

http://www.cisco.com/warp/public/474/pswdrec_2600.shtml

Cisco Technical Assistance Center

The following link connects you to release notes, field notices, security advisories, and troubleshooting information maintained by the Cisco Technical Assistance Center (TAC):

http://www.cisco.com/pcgi-bin/Support/browse/psp_view.pl?p=Hardware:2600&s=Troubleshooting

Cisco 2600 Series Routers Hardware Installation Guide

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Cisco Systems 2600 manual System Messages, Recovering a Lost Password, Cisco Technical Assistance Center

Contents

Cisco 2600 Series Routers Hardware Installation Guide Corporate Headquarters Cisco 2600 Series Routers Hardware Installation Guide N T E N T S Iii Serial DTE or DCE Devices Initial Configuration Using the Setup Command Facility Procedure for the tftpdnld Command Configuration Register Objectives Vii Audience OrganizationConventions Chapter Title Description Safety Warnings Bewaar Deze Instructies Warnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla Sicurezza Aviso Instruções Importantes DE Segurança Guarde Estas Instruções GEM Disse Anvisninger Xii Xiii Related Documentation Xiv Cisco Product Document Title Cisco 90-Day Limited Hardware Warranty Terms Duration of Hardware WarrantyReplacement, Repair, or Refund Policy for Hardware Xvi Obtaining Documentation Documentation FeedbackCisco.com Ordering Documentation Submitting a Service Request Obtaining Technical AssistanceCisco Technical Support Website Xviii Xix Definitions of Service Request SeverityObtaining Additional Publications and Information Preface Obtaining Additional Publications and Information Hardware Features Overview of Cisco 2600 Series Routers Advanced Cisco Power Reading the Front-Panel LEDs RPS ActivityPWR SYS/RPS Reading the Rear-Panel LEDs ACT Cisco 2613-Rear-Panel LEDs FDX LinkACT Modules, Interface Cards, and Memory CF1 Interface Numbering WAN and LAN Interface Numbering 11 Interface Numbering in Chassis with 1-RU Height Voice Interface Numbering System SpecificationsDescription Specification Regulatory Compliance Safety Recommendations Safety with Electricity Preventing Electrostatic Discharge Damage Power Supply Considerations Power Source Input Power Tolerance LimitsGeneral Site Requirements Site Environment Equipment Racks Installation ChecklistSite Configuration Creating a Site Log Task Verified by Date Tools and Equipment for Installation and Maintenance Inspecting the Router Console and Auxiliary Port Considerations Console Port Connections Preparing to Connect to a Network Auxiliary Port Connections Ethernet Connections Token Ring Connections Serial 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 Meters 56-K/Switched-56-kbps DSU/CSU Connections Low-Capacitance Cable OL-2171-06 Installing the Router Installing Modules, Interface Cards, and Power Supplies For network modulesFor WICs and VICs For AIMs Setting Up the Chassis Setting the Chassis on a DesktopFor internal power supplies For external power supplies Mounting 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 bracket Installing the Router in a Rack V0 EN Attaching 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 Brackets Installing the Chassis Ground Connection 17 Mounting the Chassis on the Wall Ring terminal Power Connections Connecting Routers to AC Power Connecting Routers to a DC-Input Power Supply DC Wiring RequirementsRouter DC Input DC Input Wire Size1 15A, 120VAC 10A, 240VAC. Statement Wiring 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 Cable LAN, WAN, and Voice Connection Procedures Connecting to a Console Terminal or Modem Connecting to the Console Port Connecting to the Auxiliary Port 23 Connecting to a Console Terminal 24 Connecting a Modem to the Auxiliary Port Identifying a Rollover Cable Powering Up the Router Checklist for Power UpFront Panel Indicators Routers with 1-RU Chassis Height Power-Up Procedure Routers with 2-RU Chassis Height Configuring the Router Initial Configuration Using SDM Initial Configuration Using the Setup Command Facility Enter a hostname for the router this example uses Initial Configuration Using the CLI Manual Configuration Configuration is displayed To proceed with manual configuration using the CLI, enter no OL-2171-06 Troubleshooting Isolating Problems Troubleshooting the Power and Cooling Systems Environmental Reporting Features Troubleshooting Modules, Cables, and Connections Cisco Technical Assistance Center Recovering a Lost PasswordSystem Messages Using the ROM Monitor Entering ROM Monitor Mode ROM Monitor Commands Enter ROM Monitor Mode by Using the reload Command ROM Monitor Command Syntax Conventions Command abc Boot Commands in the ROM Monitor ROM Monitor Command DescriptionsRouter Management Commands Informational Commands in the ROM Monitor Debugging Commands Other Useful ROM Monitor Commands Configuration Register Commands Modifying the Configuration Register in Menu Mode Recovering Cisco IOS Software Images Modifying the Configuration Register by Hexidecimal Entry Copying an Image from the Console Using the xmodem Command Description and Options of the xmodem CommandProcedure for the xmodem Command Console Requirements Restrictions on the tftpdnld Command Procedure for the tftpdnld Command Specify the required variables, for example DEFAULTGATEWAY=172.16.19.1 Nvram Configuration Register SettingsBit Number Hexadecimal Meaning Changing Configuration Register Settings Configuring the Boot Field Boot Field Meaning Bit Address net host Enabling Booting from Flash Memory Baud Bit OL-2171-06 Numerics IN-1 Dram IN-2 Isdn BRI LANLink LED IN-3 Sdram IN-4 IN-5 IN-6