Pre-requisite
- Putty application
Overriding the Forgotten Password
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Connect to cisco console using putty.
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Press the enter key to enter into user mode.
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Once in the user mode (i.e. the prompt with greater than sign >), reboot the cisco router (i.e. using the physical switch of the router).
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Going back to your putty terminal, once you see any text on it, issue the break command.
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Execute the following command to disable the startup-config:
confreg 0x2142
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Reset cisco router using the following command:
reset
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Expect to see the following question:
Would you like to enter the initialization configuration dialog? [yes/no]
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Type in no for the answer and press the enter key.
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Press the enter key one more time to enter into user mode.
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Execute the following command to enter into privilege mode:
enable
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Load the startup-config into the running-config using the following command:
copy startup-config running-config
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On Destination filename [running-config]?, press the enter key.
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Execute the following command to enter into the configuration mode:
config terminal
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Change the password using the following syntax:
enable secret <PASSWORD>
Example of setting cisco as the password:
enable secret cisco
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Execute the following command to enable the startup-config:
config-register 0x2102
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Exit from the configuration mode using the following command:
exit
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Save the update on the running-config to the startup-config file using the following command:
copy running-config startup-config
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On Destination filename [startup-config]?, press enter key.
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Reboot the cisco router (i.e. using the physical switch of the router).
After this you have the new password in effect.
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