Question about Cisco Catalyst 4006 Chassis ( 4006)

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Want to reset password on Cisco Catalyst 4006

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5 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 16 Answers

SOURCE: catalyst ws-c2926 password recovery problem

  1. Attach a terminal or PC with terminal emulation to the console port of the switch. Use the following terminal settings:
    9600 baud rate
    No parity
    8 data bits
    No stop bit

  2. Unplug the power cable.
  3. Hold down the mode button while reconnecting the power cord to the switch. You can release the mode button a second or two after the LED above port 1x is no longer illuminated.
    The following instructions appear:
    The system has been interrupted prior to initializing the flash file system.
    The following commands will initialize the flash file system, and finish loading
    the operating system software:

    flash_init
    load_helper
    boot
  4. Type flash_init.
  5. Type load_helper.
  6. Type dir flash:. The switch file system is displayed:
    Directory of flash:
    2 -rwx 843947 Mar 01 1993 00:02:18 C2900XL-h-mz-112.8-SA
    4 drwx 3776 Mar 01 1993 01:23:24 html
    66 -rwx 130 Jan 01 1970 00:01:19 env_vars
    68 -rwx 1296 Mar 01 1993 06:55:51 config.text
    1728000 bytes total (456704 bytes free)
  7. Type rename flash:config.text flash:config.old to rename the configuration file. This file contains the password definition.
  8. Type boot to boot the system.
  9. Enter N at the prompt to start the Setup program, Continue with the configuration dialog? [yes/no] : N
  10. At the switch prompt type en to turn on enable mode.
  11. Type rename flash:config.old flash:config.text to rename the configuration file with its original name.
  12. Copy the configuration file into memory: Switch# copy flash:config.text system:running-config
    Source filename [config.text]? (press Return)
    Destination filename [running-config]? (press Return)
    The configuration file is now reloaded.
  13. Change the password: switch#configure terminal
    switch(config)#enable password Cisco
    switch#control/Z
  14. Write the running configuration to the configuration file:
    switch(config)#write memory

Posted on Feb 09, 2009

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Anonymous

  • 1 Answer

SOURCE: I had forgotten the password of my Cisco Catalyst 3550 Switch

password recovery procedure 3550 catalyst cisco switch
1>Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch. Use the following terminal settings: ¨ Bits per second (baud): 9600 ¨ Data bits: 8 ¨ Parity: None ¨ Stop bits: 1 2>Unplug the power cable. 3>Power the switch and bring it to the switch: prompt 4>Issue the flash_init command 5>Issue the load_helper command. switch: load_helper switch: 6>Issue the dir flash: command. Note: Make sure to type a colon ":" after the dir flash.
7>Type rename flash:config.text flash:config.old to rename the configuration file. 8>Issue the boot command to boot the system. switch: boot Loading "flash:c3500xl−c3h2s−mz.120−5.WC7.bin"...############################### ################################################################################ ###################################################################### 9>Enter "n" at the prompt to abort the initial configuration dialog. −−− System Configuration Dialog −−− At any point you may enter a question mark '?' for help. Use ctrl−c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'. Continue with configuration dialog? [yes/no]: n !−−− Type "n" for no. Press RETURN to get started. !−−− Press Return or Enter. Switch> !−−− The Switch> prompt is displayed. 10>At the switch prompt, type en to enter enable mode. Switch>en Switch# 11>Type rename flash:config.old flash:config.text to rename the configuration file with its original name. Switch#rename flash:config.old flash:config.text Destination filename [config.text] !−−− Press Return or Enter. Switch# 11. Copy the configuration file into memory. Switch#Type rename flash:config.old flash:config.text to rename the configuration file with its original name. Switch#rename flash:config.old flash:config.text Destination filename [config.text] !−−− Press Return or Enter. Switch# 11. Copy the configuration file into memory. Switch#copy flash:config.text system:running−config Destination filename [running−config]? !−−− Press Return or Enter. 1131 bytes copied in 0.760 secs Sw1# The configuration file is now reloaded.
Destination filename [running−config]? !−−− Press Return or Enter. 1131 bytes copied in 0.760 secs Sw1# The configuration file is now reloaded. 12>Overwrite the current passwords that you do not know. Choose a strong password with at least one capital letter, one number, and one special character. Note: Overwrite the passwords which are necessary. You need not overwrite all of the mentioned passwords. Sw1# conf t !−−− To overwrite existing secret password Sw1(config)#enable secret <new_secret_password> 13>!−−− To overwrite existing enable password Sw1(config)#enable password <new_enable_password> !−−− To overwrite existing vty password Sw1(config)#line vty 0 15 Sw1(config−line)#password <new_vty_password> Sw1(config−line)#login !−−− To overwrite existing console password Sw1(config−line)#line con 0 Sw1(config−line)#password <new_console_password> Write the running configuration to the configuration file with the write memory command. Sw1#write memory Building configuration... [OK]

Posted on Mar 24, 2009

ciscoroute

George Murphy

  • 87 Answers

SOURCE: How to reset the cisco catalyst 2940 switch

by reset, do you mean reboot? if so type reload

if resetting to factory type erase startup-config

Posted on Jun 16, 2009

Joshua

  • 121 Answers

SOURCE: Password Recovery for Cisco Catalyst 4506

Please see Cisco's page at http://www.cisco.com/en/US/products/hw/routers/ps5199/products_password_recovery09186a0080093e12.shtml
for step by step details and more in depth instruction.

1. Reboot
2. Press the "break" button on your keyboard within 60 seconds of the power-up to put the router into ROMMON mode.
3. confreg 0x2142
4. reset
5. type, "no" when prompted to enter the initial configuration dialog.
6. enable
7. copy startup-config running-config
8. conf t
9. enable secret <password>
11. config-register 0x2102
12. reboot again

Posted on Feb 19, 2010

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2 Answers

Reset password Catalyst 4006 Ethernet Switch


Hi,

Depending on the Supervisor Module model, most likely it's a standard Cisco's "password recovery procedure":

Connect to the console
Reboot the switch (power cycle)
Start pressing Ctrl-C till you get to the BOOTROM
Change boot configuration register to 0x2142 (confreg 0x2142)
Boot the switch. It will ignore confuguration and boot "empty".
Go to "enable mode".
Copy startup configuration to running configuration ("copy start run")
Change boot register back to 0x2102 (conf t -> conf 0x2102)
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Reboot

Good luck,

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Joelouisgv@hotmail.com


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