Cisco Systems 1700 manual Recovering a Lost Password, Change the Configuration Register

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Chapter 3 Troubleshooting

Recovering a Lost Password

This section describes how to recover a lost enable or enable secret password. The process of recovering a password consists of the following major steps:

•Change the Configuration Register

•Reset the Router

•Reset the Password (for lost enable secret passwords only)

•Reset the Configuration Register Value

Note See the “Hot Tips” section on Cisco Connection Online (CCO) for additional information on replacing enable secret passwords.

Change the Configuration Register

Step 1 Connect an ASCII terminal or a PC running a terminal-emulation program to the CONSOLE port on the rear panel of the router. Refer to the section “Connecting a PC” in the “Installing the Cisco 1700 Router” chapter.

Step 2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, and 1 stop bit.

Step 3 Reboot the router by pressing the power switch to the

OFF position, then to the ON ( ) position.

	Cisco 1700 Router Hardware Installation Guide
3-2	78-5405-03

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Contents Cisco 1700 Router Hardware Installation Guide Corporate HeadquartersPage Cisco 1700 Router Hardware Installation Guide Page N T E N T S Wall-Mounting Troubleshooting Vii Viii About This Guide Audience and ScopeOrganization Related PublicationsConventions Xii Xiii Documentation DVD Obtaining DocumentationCisco.com Ordering Documentation Documentation FeedbackCisco Product Security Overview Reporting Security Problems in Cisco Products PsirtObtaining Technical Assistance Cisco Technical Support WebsiteSubmitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information Cisco 1700 Router Hardware Installation Guide 78-5405-03 Cisco 1700 Router Overview Cisco 1700 Router Feature Description Key FeaturesKey Features Rear-Panel Ports and LEDs Rear-Panel ConnectorsConnector/Slot Label/Color Description Rear-Panel LEDs LED Label Color DescriptionACT Front-Panel LEDsPWR COLACT/CHØ ACT/CH1Router Memory Types of MemoryAmounts of Memory 1700# show versionUnpacking the Router Router Box ContentsEquipment When You Use It Additional Required EquipmentHardware Installation Guide that comes with every card NT1Cisco 1700 Router Overview Installing the Cisco 1700 Router Before Installing the RouterConnecting the Router to Your Local Network Connecting the Router to the Local Network Installing WAN Interface Cards Safety InformationInstalling a WAN Interface Card Installing the Cards in Correct SequenceInstalling the Cards Inserting a WAN Interface Card in the Router Connecting Power to the Router Connecting the Power Supply Verifying Your Installation Optional Installation Steps Connecting a PCConnecting a Modem Connecting the Console Cable to the RouterConnecting a Modem to the Router Wall-Mounting Wall-Mount Brackets-Bottom of RouterInstalling the Cisco 1700 Router Installing the Cisco 1700 Router Troubleshooting Contacting Cisco or Your ResellerRecovering a Lost Password Change the Configuration RegisterConfiguration register is Reset the Router Reset the Password Problem Solving Reset the Configuration Register ValueOK LED Blinking Patterns OK LED DiagnosticsTroubleshooting WAN Interface Cards and Cables Number of Blinks MeaningTroubleshooting WAN Interface Cards Symptom Possible CausesTroubleshooting the Power System Troubleshooting the Power SystemSymptom Possible Causes Troubleshooting Isdn Isdn S/T Isdn UTroubleshooting Isdn Use show isdn statusTable A-1 Router Specifications Description SpecificationAppendix a Technical Specifications Cabling Specifications TX+ RX+ RJ-45 Pin Signal DirectionEthernet Cables Console Cable and Adapters Specification 10BaseT 100BaseTXEthernet Network Cabling Guidelines Table B-2 Ethernet Cabling GuidelinesConsole Terminal Signal RJ-45 Pin DB-9 Pin DB-25 PinTable B-3 Console Cable and Adapter Pinouts Port Console Cable AdapterInstalling and Upgrading Router Memory Opening the Chassis Figure C-1 Removing the Chassis Screws Locating Memory Figure C-2 Cisco 1700 Motherboard-Memory LocationsInstalling a Mini-Flash Module Figure C-3 Mini-Flash ModuleFigure C-4 Installing a Mini-Flash Module Removing a Mini-Flash ModuleInstalling a Dimm Figure C-5 Removing a Mini-Flash ModuleFigure C-6 Installing a Dimm Closing the ChassisFigure C-7 Closing the Chassis Appendix C Installing and Upgrading Router Memory Ordering and Configuring an Isdn Line Isdn BRI Line Configuration RequirementsSwitch Type Keywords Isdn BRI Switch TypesTable D-1 Isdn BRI Switch Types Switch Type Provisioning Isdn BRI Provisioning by Switch TypeTable D-2 Isdn Provisioning by Switch Type Mterm =Defining Isdn Service Profile Identifiers Isdn Configuration Options Snapshot RoutingBandwidth on Demand and Dial Backup Dial-on-Demand RoutingNumerics IN-2 IN-3 IN-4 IN-5 IN-6

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