Debugging a Cisco Enterprise-class Router

1. Restore factory settings

   In privileged mode, enter this command:

   router# Erase startup-config Restore factory settings

Router#relod Rebooting the system

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2. Modify the privileged password

Configuration command:

Rommon 2〉confreg 0x2142! Ignore configuration files in NVRAM

Rommon 3〉reset! Rebooting the system

Continue with Configuration dialog? [Yes/no]:no! Manual configuration

Router〉enable! Enter Privileged mode

Router #copy startup-config Running-config! Copy the configuration files in NVRAM to memory

Router (config) #enable password 123! Reset Password

Router #write Memory! Save a new configuration file

Router #reload! Rebooting the system

Rommon 2〉confreg 0x2102! Reload the configuration file from NVRAM

Rommon 3〉reset! Reboot System Password modified successfully

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3. Backing up the configuration file

Configuration command:

Router (config-if) #ip address 192.168.1.2 255.255.255.0! Set the interface IP address

Router#write memory! Save Running-config to Startup-config

Router#copy Running-config TFTP Save address

Address or name of remote []?192.168.1.1 saved host IP

Destination filename [router-config]?  ! Hit Enter to keep the default file name

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Configuration command:

router# copy TFTP flash:!copy destination file saved to disk

Address or name of remote host []?192.168.1.1 upgraded system Source IP

SOURCE filename []? C2600-advipservicesk9-mz.124-15.t1.bn! Input System Full Name

Router # Reload! Rebooting the system

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Debugging a Cisco Enterprise-class Router