Shulou(Shulou.com)06/01 Report--

After the router has set the password and turned on telnet remote management service, an authentication prompt will appear at the same time, and then enter the corresponding account name and password.

This article is the main step of Huawei router password recovery.

I. Remote telnet password forgotten: Most enterprise network administrators manage routing switching devices through telnet. If you forget this Huawei router password, how can you recover it? We'll do it step by step.

Step 1: Generally speaking, when we set Huawei router password for the router and open telnet remote management service, any computer in the network to access the router through telnet management IP will appear user authentication prompt, asking for the corresponding account name and password.

Step 2: In general, the router console authentication and remote telnet authentication mode settings are separate, so even if telnet login requires authentication, connecting to the management console directly with the console line does not necessarily require a password. Therefore, we can use the original Console cable to connect the COM serial port of the computer and the console port of Huawei router. All parameters of the property can be kept at their default values.

Step 3: After a successful connection, we will generally find that managing the router directly through the console does not require a password, thus bypassing the telnet form of authentication.

Step 4: After entering the management interface, modify the password of the corresponding account through the local-user command to achieve the purpose of password recovery, and reset the password of the original account that cannot be logged in.

Summary--The telnet and console control login passwords are set separately in the router, so even if you forget the telnet login password, you can solve the problem by connecting to the router management console through the console.

Second, the console management password and telnet password are forgotten: if the enterprise network administrator accidentally forgot the console password and telnet password, then we do not have to worry, the router also provides a recovery method.

Step 1: When we connect the router control with the console line, we also need a password, and the Huawei router password has also been forgotten.

Step 2: At this time we can turn off the power of the router, and then restart the router under the condition that the CONSOLE line connection is normal.

Step 3: Pay attention to the information displayed in the terminal connection. When "press CTRL+B to enter extended boot menu" appears, we quickly press CTRL and B keys, which will enter extended boot options.

Step 4: In the extended boot options, there are nine options available to us to choose from, in turn, starting the system in CF card, entering the serial port submenu, entering the Ethernet port submenu, file control, modifying the password of bootrom, ignoring the loading of the system config file, clearing the super password, device operation and restarting. Note that clearing the super password is not an option, it only applies to password-based authentication and not both username and password based authentication. So we choose item 6-ignore system configuration.

Step 5: After the selection, the system returns to the menu just now. It seems that there is no difference on the surface, but in fact, it has been executed. Next we just need to select 9--reboot to restart the router, in the next boot process router will not load any information saved in the config file

Step 6: Rebooting the router does not require us to do anything, nor do we have to type ctrl+b again to enter the extended boot option. Configuration file is skipped.User interface con0 is available. "indicates that the config file has not been loaded and the user still has console control privileges. At this time, we can execute dis cur to view the configuration, and modify the account information and correct the password through local-user, thus achieving the purpose of password recovery for Huawei routers.

Summary:

This article mainly introduces the password recovery steps for Huawei's latest router. Whether you forget your telnet login password or console connection password, we can easily crack and recover it. Of course, all the operations described in this article are based on physical contact with the router

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