Cisco routers use a lot of users, at the same time there will be many problems, the password is forgotten or lost users are very common problems, so I studied the Cisco router password recovery of two methods, here to take out and share with you, hope for everyone useful. Wh
Environment Cisco 2500 Series Router
Problem with Cisco router password recovery
The Cisco 2500 router has several passwords, including the Enable secret,enable password,telnet password
Cisco routers use a lot of users, at the same time there will be many problems, the password is forgotten or lost users are very common problems, so I studied the Cisco router password recovery of two methods, here to take out and share with you, hope for everyone useful. Wh
Research and Practice of Cisco Series vro password recovery
1. Password Recovery Principle
(1) The Cisco router stores several different configuration parameters and stores them in different memory modules.
Cisco routers use a lot of users, at the same time there will be many problems, the password is forgotten or lost users are very common problems, so I studied the Cisco router password recovery of two methods, here to take out and share with you, hope for everyone useful. Wh
Network is inseparable from the password, as a network administrator to remember more than one router password, if the router password forgotten, we need to set up a router to restore the password.
Router password recovery has a
The customer calls to say that UCS Manager cannot log on, prompting the user name for password validation to fail. Rushed to the user site, found whether the console or the Web can not log in, for the current count only broken pry lock!By reviewing the official documentation, UCS Manager password recovery is available in two ways:First,
; prompt
3. After the user prompt, enter enable to enter the privileged mode.
Console> en
Enter password:
Console> (enable)
4. In privileged mode, you can use the set password and set enablepass commands to change the password.
The following is a reference clip:Console> (enable) set password Enter old
1. Password Recovery Principle
1) The Cisco router stores several different configuration parameters and stores them in different memory modules. The memory of Cisco Series routers includes ROM, Flash memory, RAM, immutable RAM, and Dynamic memory DRAM. See table 1 ). Generally, when a vrodram starts, it first runs th
configuration?" VALUE; At thatprompt, enter Y.Step 8 Reload The security appliance by entering the following command:Rommon #2 > BootThe security appliance loads a default configuration instead of the startup configuration.Step 9 Enter Privileged EXEC mode by entering the following command:Hostname> EnableStep Ten when prompted for the password, press Return.The password is blank.Step one Load the startup
asked the boss, and he did not know it. It is said that the password was changed by the supplier. So the phone supplier asked the password for a long time and got a reply: at that time, the changed employee quit, and now he does not know the password .... dizzy .. too irresponsible .. there is no way to ask for your own, for your own, for google... (Although I h
and a switch are connected with the console lineHow it works: Switch password recovery fundamentals: Change the Config.text file name in the switch to a different file name, and then enter the configuration mode to change the password, and finally restore the Config.text file nameSteps:1. Power off first2. Power off while holding down the mode key on the switch
the input error and other operational effects, you can copy the above command into a txt text file, and paste it in the Operation console interface when used. (This does not understand, do not know how to operate)3. Cisco IOS Switch Password recoveryCisco iOS switches are more complex than the CatOS switch password recovery
Password recovery for Cisco Catalyst 2950 Switches1. Unplug the power cord from the switch.2. Press and hold the switch's mode key to plug in the power cord.3. When "Switch:" appears, release mode switch:4. After the SWITCH: Execute the "flash_init" command, initialize the Switch:flash_init5. View the files in Flash. Switch:dir Flash6. Rename "Config.text" file t
(1) Start the switch, press Ctrl + Break within 30 seconds, and the prompt "rommon 1>" appears (if this prompt does not appear, the switch restarts, repeat step (1 ).
(2) type the following command: rommon 1> confreg 0x2142
(3) initialize the vswitch: "rommon 2> reset"
(4) switch # show startup-config
Back up all the content.
(5)
The following is a reference clip:Switch # config memSwitch (config) # no enable secretSwitch (config) # enable secret ciscoSwitch (config) # config-r
values
0x2142: Starting from flash, but not using the configuration file in NVRAM (for password recovery)
0X2101: Booting from boot RAM, applied to update system files
0x2141: Starting from boot RAM, but not using the configuration file in NVRAM
Where the third digit of the C bit is 1, the break key is turned off, whereas the break key is turned on.
0x141: Closes the break key, does not use the config
If the switch login password is forgotten, don't worry, as long as you have a PC, there are similar HyperTerminal (Hyper Terminal) This is a terminal program, connected to the switch console port, then the password recovery is n simple.
1. For the Catalyst 2900/3500XL series:
Disconnect the power cable from the switch, and then press and hold the switch mode bu
Cisco router is one of the widely used computer network communication devices. In daily operation, the router plays an important role in the whole system, and it is unavoidable to operate it frequently. For example:
Modify router configuration files, diagnose network failures, and so on. Once the password is forgotten, it can cause great trouble to the job, at this point, how to recover the
Password Recovery for Cisco switches
1. Press and hold the modem key to power on. After Entering the console, release: switch:
2. Load the flash_init file for initialization: switch: flash_init
3. view files in flash: switch: dir flash:
4. rename the configuration file: switch: rename flash: config. text flash: config. old (set at will)
5. Start the vswitch:
Password Recovery for Cisco switches
1, hold the modem key, power, to enter the console after release: switch:
2, loading flash_init file initialization: Switch:flash_init
3, view the files in Flash: Switch:dir Flash:
4, rename the configuration file: Switch:rename flash:config.text flash:config.old (optional set)
5. Start switch: Boot
6, in the privileged
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