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Software Maintenance under v 3.11 Environment 59

6Clear console authentication.

This option allows you to log in from the console port without authentication.

Select the option; exit and then restart the router. The screen displays “Login authentication ignored”, allowing you to log in from the console port without authentication.

Note that this is a one-time operation. It takes effect only at the first reboot after resetting console authentication is selected. At the next reboot, console authentication is required.

7Start up and ignore configuration.

Select option 7. The system sets an Ignore flag to Flash memory and displays:

Flag set successfully.

Thus, empty configuration applies at reboot. The system removes the Ignore flag after its boot is completed.

In case you forget the password, you may select this option to have the router boot with the configuration file ignored. After accessing the system, you may change or delete the password. Note that if not saved, the modified configuration cannot survive a reboot. To have the router reboot with the new configuration, you must perform the save operation after completing configuration.

8Enter debugging environment in case of faults.

9Enter the Boot ROM operation menu.

Select <9> to enter Boot ROM Download Menu as follows for upgrade, backup, or recovery:

Boot ROM Download Menu:

1:Download Boot ROM with XModem

2:Download Extended Segment of Boot ROM with XModem

3:Restore Extended Segment of Boot ROM from FLASH

4:Backup Extended Segment of Boot ROM to FLASH

5:Exit to Main Menu

Enter your choice(1-5):

1Ignore software version check for backward compatibility. The likelihood exists that your upgrade attempt fails even when you select the correct

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3Com 5000 manual Flag set successfully

Contents

3Com Router 5000 Family 3Com Corporation Campus Drive Marlborough Page Page Contents Register Your Product to Gain Service Benefits Introduction Software Maintenance under v 3.11 Environment Contents Contents About This Guide Documentation ConventionsRelated Pddtechpubscomments@3com.com Comments About This Guide Router About Ethernet access solution By extending SICs and MIMs, 3C13701 3Com Router System description of 3Com Router Router 5012 IndicatorsSystem Description SLOT1~3 READY/ACTIVE 3C13751 Ready LEDs of 3Com 5232 Router Nvram 3Com Router 5642 Front view of 3Com Router Router 5642 Indicators3C13755 Router 5642 Indicators 3Com Router 5682 Front view of 3Com Router 3C13759 Router 5682 Indicators Introducing the Router 5000 Family Standard rack, as shown in Figure Installing the Router on a WorkbenchInstalling Router in a Rack Pgnd Wire Power Cords Grounds and Cables AC Power Cord AC power supply Power Cord AC Power Connector Recommended power outlet Attributes of the console port Console Terminal Introduction to console portConsole cable Attributes of the Ethernet interface Router to LAN ConnectionIntroduction to the Ethernet interface Ethernet cable AUX cable Router to WANConnection Introduction to the AUX port Attributes of the synchronous/asynchronous serial interface WAN Interface to Transmission rate and distance of V.24 RS232/V.35 cable Attributes of the synchronous/asynchronous serial interface DTE and DCE DTE cable assembly 24 RS232 DCE cable assembly 35 DCE cable assembly 35 DTE cable assembly 21 DTE cable assembly V24 DTE cable assembly 35 DCE cable assembly E1 interface attributes E1 interface to DSU/CSU75Ω unbalanced coax cable 120Ω balanced twisted pair cable E1 120Ω balanced twisted pair cable T1interface attributes T1 interface to DSU/CSU Startup Router Setting up Configuration EnvironmentConnecting the router to a console terminal Setting the parameters for console terminal Setting the connection port in the local configuration Powering on the router Checking before power-on Checking/operating after power-on Press Enter and the screen will display Interface ConfigurationCharacteristics of the command line interface Fundamentals Router Command line interface Starting and Configuring the Router Console TroubleshootingPower System Troubleshooting of nothing being displayed on the terminal Sdram Troubleshooting of repeated reboot Application Software Upgrade Troubleshooting Application image file main software Configuration fileIntroduction Router manages three types of files Environment Maintenance underBoot Menu Software Default names and types of the boot files =MAIN B=BACKUP S=SECURE Flag set successfully Upgrading the application image Upgrading Software through Xmodem Download completed Upgrading the entire Boot ROM image Upgrading the application image through Ethernet Router Software Maintenance Software Maintenance under v 3.11 Environment Loss Router PasswordPassword loss. They can help you to set a new password Dealing with a Product to Gain Service BenefitsSolve Problems Online Register Your Purchase Extended WarrantyServices Access Software Support and Repair Contact UsTelephone Technical Country Telephone Number US and Canada Telephone Technical Support and Repair Appendix a Obtaining Support for Your 3COM Products