Introduction.
This paper provides several ways to restore the password for the router Cisco. You can recover your password on most platforms without changing hardware jumpers, but the router must be rebooted. Password recovery can be performed only with the console port is physically connected to the router.
There are three ways to restore the permitted access to the router when the password is lost. You can VIEW (view) password, CHANGE (Change) password, or ERASE (Erase) configuration and start all over again, as if the device was completely new.
Each procedure is divided into the following main stages:
- Configure the router to boot without having to read configuration information from the nonvolatile memory (NVRAM). This stage is sometimes called the regime of testing the system.
- Reboot the system.
- To access to the authorized mode (enable mode); it can be done without a password, if you are working in test mode system.
- View or change your password, or erase the existing configuration.
- Once again, configure the router to download and read the NVRAM, to make sure that everything is in order.
- Reboot the system.
Note: In some cases, password recovery is necessary that the terminal gave an interrupt signal (stop) you need to know how your terminal or PC terminal emulator issues this signal. For example, in ProComm by default, this signal is generated keys Alt-B will, in Windows Terminal - pressing Break or CTRL-Break. Windows Terminal also allows you to assign any function key to generate such a signal. In the Terminal, select Function Keys and ask one of them, such a function, fill in the characters ^ $ B (Shift 6, Shift 4, Shift B).
Below are detailed instructions for specific routers, Cisco. In the section heading, locate the type of your router to determine which method to use.
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