HP AdvanceStack Internet Router Signal to the router, Boot ROMs and ignore Nvram, Press Return

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Troubleshooting

Recovering Lost Passwords

3.Enter the show version command to display the existing configuration register value. The configuration register value is on the last line of the display. Note whether the configuration register is set to enable or disable Break.

4.The factory-default configuration register value is 0x2102. Notice that the third digit from the right in 0x2102 is 1, which disables Break. If the third digit is not 1, Break is enabled.

5.If the configuration register is set to disable Break, power cycle the router or press the reset button on the router’s front panel. (Turn the router OFF, wait five seconds, and then turn the router ON again.) Within 60 seconds of turning ON the router, press the Break key or send a Break signal. The ROM monitor prompt (>) appears.

6.If the configuration register is set to enable Break, press the Break key or send a Break signal to the router.

N O T E	If your keyboard does not have a Break key, refer to your terminal or terminal
	emulation software documentation for information about how to send a Break
	signal to the router.
	7.	Enter the o/r command to reset the configuration register to boot from
	7.
		the boot ROMs and ignore NVRAM:
		> o/r 0x142
	8.	Enter the initialize command to initialize the router:
		> initialize
	9.	The router power cycles and the configuration register is set to 0x142. The
		router boots the system image in Flash memory and the System Configu-
		ration Dialog appears:
		--- System Configuration Dialog ---
	10.	Enter no in response to the System Configuration Dialog prompts until
		the following message appears:
		Press RETURN to get started!
	11.	Press Return.

Maintenance

4-5

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Contents HP AdvanceStack Internet Router Page Support is as close As the World Wide Web Additional HP Support Services HP AdvanceStack Internet Router Installation GuidePublication Number Contents Verifying Network Connectivity Getting More Information Configuring the HP AdvanceStack Internet RouterCable Specifications Page HP AdvanceStack Internet Router Overview HP AdvanceStack Internet Router Overview Hardware FeaturesSoftware Features Compression Includes switchingCables and Adapters Ordering InformationTel Nets Fax Documentation and SoftwareCisco Systems Contact Information Cisco Systems, Inc West Tasman Drive San Jose, CAVerifying Included Parts InstallationPreparing to Connect to a Network Modem for remote access optionalInstalling the HP AdvanceStack Internet Router Required Tools and PartsSpecification High-Capacitance Cable Low-Capacitance Cable Isdn BRI Cable Specifications S/T CableIsdn Connections Typical DTE and DCE Devices Synchronous Serial ConnectionsDevice Type Gender Typical Devices EIA/TIA-232 Speed and Distance Limitations Or other DCE deviceData Rate Baud Distance Feet Distance Meters U T I O N Console and Auxiliary Port ConsiderationsConsole Port Connections While you are installing the module Installing the ModuleCircuitry on the boards Installation Connecting to a WAN Connecting to the NetworkConnecting the Isdn BRI Port to an NT1 Device Connecting the Console Terminal and ModemConnecting the Console Terminal Connecting a Modem to the Auxiliary Port What to Do After Installing the Router Hardware Configuration Booting the Router for the First TimeBegin to configure the router Configuring the Router for the First TimeConfiguring the HP AdvanceStack Internet Router Using the System Configuration Dialog On the console screen Parity, and 2 stop bitsReflect the screen displays on your console OK? Enter the enable and virtual terminal passwords Enter an enable secret passwordCountry Isdn Switch Type Description Isdn Switch TypePress Return or enter yes to configure serial port Configuring Ethernet or VG InterfacesConfiguration Prompt changes to the privileged Exec prompt Using Configuration ModeRouter will now boot with the configuration you entered Using AutoInstallCisco IOS Modes of Operation Cisco IOS Software BasicsInterface serial 0 command to Mode Usage How to Enter the Mode Prompt OperationCisco IOS Operating Modes Getting Context-Sensitive Help Saving Configuration Changes Configuring IsdnRouter config# username targetrouter password abc Enter the exit command to exit interface configuration mode Enter the exit command to exit global configuration mode Example Isdn ConfigurationRouter# config term Example Isdn ConfigurationVerifying Network Connectivity ConfigurationGetting More Information Reading the LEDs MaintenanceLEDs on the Host Device Front Panel TroubleshootingState Description Isdn BRI LEDs on the HP AdvanceStack Internet Router Front PanelRecovering Lost Passwords Upgrading the Boot ROMsRation Dialog appears Signal to the routerBoot ROMs and ignore Nvram Enter the initialize command to initialize the routerNvram Passwords, if they are not encrypted, and proceed to stepAre different Configuration register value you set in step Press Ctrl-Z to exit configuration modeOr replace a password, proceed to and log Reboot the routerBit No.a Hexadecimal Meaning Virtual Configuration Register Settings0x2102 is a combination of settings Virtual Configuration Register Bit MeaningsBoot Field Boot Process Changing Configuration Register SettingsVirtual configuration register is stored in Nvram Explanation of Boot Field Configuration Register Bits 00 toVirtual Configuration Register Bit Meanings Action or Filename Bit Default Boot FilenamesBoot field number, a hyphen, and the processor type Overrides the default boot filenameBaud Bit Bit Address net hostCopying a Cisco IOS Image to Flash Memory Enabling Booting from Flash MemoryFollowing messages display Command reference publications System reboots using the new image in Flash memoryBack of HP Switching Hub Inserting the HP Internet Router Module into an HP Remote 2C Router to Router Connections Cable Specifications Console and Auxiliary Port Signals PinoutsIdentifying a Roll-Over Cable Cable SpecificationsConsole Port Signals and Pinouts Figure A-2. Connecting the Auxiliary Port to a Modem Auxiliary Port Signals and PinoutsEIA-530 Synchronous Serial Cable Assemblies and PinoutsFigure A-3. EIA-530 Serial Cable Assembly Table A-4.EIA-530 DTE Cable Pinouts DB-60 to DB-25 60 Pin Signal 25 Pin DTE DCEaDirection EIA/TIA-232 Table A-5. EIA/TIA-232 DCE Cable Pinouts DB-60 to DB-25 60 Pin Signal Description Direction 25 PinCable Table A-6. EIA/TIA-232 DCE Cable Pinouts DB-60 to DB-25EIA/TIA-449 Table A-7. EIA/TIA-449 DTE Cable Pinouts DB-60 to DB-37 60 Pin Signal Description Direction 37 PinTable A-8. EIA/TIA-449 DCE Cable Pinouts DB-60 to DB-37 Indicates DTE to DCE, and indicates DCE to DTE Figure A-6. V.35 Cable AssemblyTable A-9. V.35 DTE Cable Pinouts DB-60 to 34-Pin 60 Pin Signal Description Direction 34 PinCable Table A-10. V.35 DCE Cable Pinouts DB-60 to 34-PinFigure A-7. X.21 Cable Assembly Cable Specifications Table A-11. X-21 DTE Cable Pinouts DB-60 to DB-15 60 Pin Signal Description Direction 15 PinTable A-12. X.21 DCE Cable Pinouts DB-60 to DB-15 Table A-13. BRI Port RJ-45 Pinout Isdn BRI Port and Cable PinoutsRJ-45 TE b NT c Polarity Pin a Environmental Power ConsumptionHP J3138A Specifications PhysicalElectromagnetic ConnectorsIEC 950 1991 + A1, A2 / .EN60950 I 1992 + A1, A2 Safety Information Safety and Regulatory StatementsInformations concernant la sécurité Safety and Regulatory StatementsHinweise zur Sicherheit SicherheitssymboleSimboli di sicurezza Considerazioni sulla sicurezzaSímbolos de seguridad Consideraciones sobre seguridadStatements Safety Information JapaneseRegulatory Statements No repairs can be done by the customer Canada European CommunityUnshielded cables and EN55022 Page Index IndexIndex See also Isdn BRI Setup Page Page J3138-90003