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Password everywhere in life, QQ passwords, email passwords, Windows logon password for our network administrators, of course, more than one or more routers password. QQ password forgotten password protection can be recovered, the system can be forgotten password tool crack, when the router password forgotten how to do? The following will tell you the password recovery method common router.

1, CISCO2600 Series First step: the control of the router port (Console port) and computer connection, click “Start All Programs Accessories super terminal” Start HyperTerminal program, set the parameters for the 9600 baud rate, data bit 8 , parity none, stop bits to 1, no flow control options, open the router power supply, in the boot of a minute on the computer by pressing the Ctrl + Break key combination to make the router into the monitoring mode (RomMonitor state) , then prompt will appear as rommon1>.

Second step: the implementation of Confreg configuration command ignored File , Direct start, and then re-configuration register. When the screen prompts “doyouwishtochangetheconfiguration (y / n)”, enter y, the next option input n. When the screen prompts enable “ignoresystemconfigurationinformation” (y / n) information input y, the next option input n.

Third step: at the prompt, enter the Reset command, Enter execution, restart the router.

Step: Restart the router and entered the privileged mode, perform configmem order to maintain the configuration information prior to the effective, then you can view the routing device password, get password, what do I do not say it, and quickly Change the password into the familiar bar.

2, CISCO2500 Series 2600 series with almost the entire process, but some commands are different.

First step: the same control of the router port connected to the computer’s serial port, start the computer, HyperTerminal, set the parameters for the 9600 baud rate, data bits 8, parity none, stop bits 1, flow control options no. Open the router the power, within a minute in the boot press Ctrl + Break key combination to enable the router to enter Monitor Mode (RomMonitor state), prompt will appear as>.

Second step: implementation of the “e/s2000002″ command to see the Configure? Cregister value, and the value of a note.

Third step: the implementation of “o/r0×0142″ command updates Configure? Cregister value, so skip the router startup configuration file, which is directly started, so the password does not work.

Third step: Restart the router. Step four: After the router starts to enter privileged mode, the implementation of “Configmem” command, to keep the previous configuration information effectively.

Step: Then you can view the original normal operating code, and of course there needs to be done is to change the password to their own familiar, easy to forget.

Step six: the “configure-register” value reduction, and then restart the router, then equipment can resume normal operation.

Followed by implementation of the “Configure-register0x (note between the Configure? Cregister value), write, reload” command can be the end of the three password recovery.