ITCwiki - User contributions [en]

Password Recovery for Cisco Router 1841

2010-12-09T18:38:28Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash. This command will cause the router to skip the startup configuration on the next reset.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''.

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router# conf t
Router(config)#enable secret <new_secret_password>
Router(config)#enable password <new_enable_password>
Router(config)#line vty 0 15
Router(config-line)#password <new_vty_password>
Router(config-line)#login
Router(config-line)#line con 0
Router(config-line)#password <new_console_password>
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 configuration register.

Router#reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T17:35:39Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash. This command will cause the router to skip the startup configuration on the next reset.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router# conf t
Router(config)#enable secret <new_secret_password>
Router(config)#enable password <new_enable_password>
Router(config)#line vty 0 15
Router(config-line)#password <new_vty_password>
Router(config-line)#login
Router(config-line)#line con 0
Router(config-line)#password <new_console_password>
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 configuration register.

Router#reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Cisco Password Recovery and Device Reset Procedures

2010-12-09T17:20:06Z

Jasonredlin:

== Password Recovery and Device Reset Procedures ==

*[[Password Recovery for Cisco Router 1841]]
*[[Reset a Cisco Router to Factory Default Settings]]
*[[Recover Cisco Catalyst 2960 Switch Password]]
*[[Resetting Switch Configuration Including VLAN Configuration Files]]
*[[Standard Break Key Combinations]]

* [[Franske CNT-2540|CNT 2540: Wide Area Network Technologies (CCNA 4)]]

Cisco Password Recovery and Device Reset Procedures

2010-12-09T17:19:00Z

Jasonredlin:

Standard Break Key Combinations

2010-12-09T17:17:31Z

Jasonredlin:

== Standard Break Key Combinations ==

*[[Password Recovery and Device Reset Procedures]]

== Hyperterminal ==

IBM Compatible
Windows XP
'''Ctrl-Break'''

IBM Compatible
Windows 2000
'''Ctrl-Break '''

IBM Compatible
Windows 98
'''Ctrl-Break '''

(version 595160)
IBM Compatible
Windows 95
'''Ctrl-F6-Break '''

== Kermit ==

Sun Workstation
UNIX
'''Ctrl-\l '''
'''Ctrl-\b '''

== MicroPhone Pro ==

IBM Compatible
Windows
'''Ctrl-Break '''

== Minicom ==

IBM Compatible
Linux
'''Ctrl-a f'''

== ProComm Plus ==

IBM Compatible
DOS or Windows
'''Alt-b'''

== SecureCRT ==

IBM Compatible
Windows
'''Ctrl-Break'''

== Telix ==

IBM Compatible
DOS
'''Ctrl-End '''

== Telnet ==

N/A
N/A
'''Ctrl-], then type send brk '''

== Telnet to Cisco ==

IBM Compatible
N/A
'''Ctrl-] '''

== Teraterm ==

IBM Compatible
Windows
'''Alt-b '''

== Terminal ==

IBM Compatible
Windows
Break
'''Ctrl-Break'''

== Tip ==

Sun Workstation
UNIX
'''Ctrl-], then Break or Ctrl-c '''
'''~# '''

== VT 100 Emulation ==

Data General
N/A
'''F16 '''

== Windows NT ==

IBM Compatible
Windows
'''Break-F5'''
'''Shift-F5 '''
'''Shift-6 Shift-4 Shift-b (^$B)'''

== Z-TERMINAL ==

Mac
Apple
'''Command-b '''

== N/A ==

Break-Out Box
N/A
'''Connect pin 2 (X-mit) to +V for half a second '''

Cisco to aux port
N/A
'''Control-Shft-6, then b '''

IBM Compatible
N/A
'''Ctrl-Break'''

*[[Password Recovery and Device Reset Procedures]]

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T17:12:35Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

1. Connect to the console port of the switch a PC with terminal emulating software like Hyperterminal or TeraTerm. The terminal settings are as follows:

◦Bits per second (baud): 9600
◦Data bits: 8
◦Parity: None
◦Stop bits: 1
◦Flow Control: Xon/Xoff

2. Power down the switch by unplugging the power cord.

3. Hold down the mode button on the front left side of the switch and plug in the power cord. Do not release the mode button until you see the '''SYST''' LED blink amber and then turn solid green. When you release the mode button the '''SYST''' LED should blink green. The switch should now be in ''switch:'' mode.

4. Enter the '''flash_init''' command at the ''switch:'' prompt.

switch: flash_init
Initializing Flash...

5. Enter the '''load_helper''' command

switch: load_helper
switch:

6. Enter the '''dir flash:''' command

switch: dir flash:
Directory of flash:/

Output omitted.

4 -rwx 1131 <date> config.text

This is the configuration file.

5 -rwx 109 <date> info
6 -rwx 389 <date> env_vars
7 drwx 640 <date> html
18 -rwx 109 <date> info.ver
403968 bytes available (3208704 bytes used)
switch:

7. Rename the configuration file by entering '''rename flash:config.text flash:config.old'''. The config.text file is the file that contains the password definition.

switch: rename flash:config.text flash:config.old
switch:

8. Reboot the switch by entering the '''boot''' command.

switch: boot
Loading "flash:...

9. When the switch is done reloading the ''---System Configuration Dialog---''' will appear in the output. Answer '''no''' or press '''ctrl-c''' to leave the system 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

Press RETURN to get started.

Switch>

10. Enter '''enable''' to go into enable mode on the switch.

Switch>enable
Switch#

11. Rename the configuration file back to its orginal name by entering '''rename flash:config.old flash:config.text''' and press enter when the message appears ''Destination filename [config.text]''.

Switch#rename flash:config.old flash:config.text
Destination filename [config.text]

12. Copy the configuration file into memory by entering '''copy flash:config.text system:running-config'''. Press enter to verify.

Switch#copy flash:config.text system:running-config
Destination filename [running-config]?

Now the old configuration is loaded into RAM.

13. At this point you can reassign all of the passwords you don't know by entering global configuration mode and entering the following commands:

Sw1# conf t
Sw1(config)#enable secret <new_secret_password>
Sw1(config)#enable password <new_enable_password>
Sw1(config)#line vty 0 15
Sw1(config-line)#password <new_vty_password>
Sw1(config-line)#login
Sw1(config-line)#line con 0
Sw1(config-line)#password <new_console_password>

14. Save the running configuration to the startup configuration by entering either '''write memory''' or '''copy running-config startup-config'''.

Sw1#write memory
Building configuration...
[OK]
Sw1#

You have reset your passwords without losing your configuration.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T17:09:37Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router# conf t
Router(config)#enable secret <new_secret_password>
Router(config)#enable password <new_enable_password>
Router(config)#line vty 0 15
Router(config-line)#password <new_vty_password>
Router(config-line)#login
Router(config-line)#line con 0
Router(config-line)#password <new_console_password>
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 configuration register.

Router#reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T17:09:02Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router# conf t
Router(config)#enable secret <new_secret_password>
Router(config)#enable password <new_enable_password>
Router(config)#line vty 0 15
Router(config-line)#password <new_vty_password>
Router(config-line)#login
Router(config-line)#line con 0
Router(config-line)#password <new_console_password>
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 register.

Router#reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T17:05:18Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router# conf t
Router(config)#enable secret <new_secret_password>
Router(config)#enable password <new_enable_password>
Router(config)#line vty 0 15
Router(config-line)#password <new_vty_password>
Router(config-line)#login
Router(config-line)#line con 0
Router(config-line)#password <new_console_password>
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 register.

Router>reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T17:03:45Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

1. Connect to the console port of the switch a PC with terminal emulating software like Hyperterminal or TeraTerm. The terminal settings are as follows:

◦Bits per second (baud): 9600
◦Data bits: 8
◦Parity: None
◦Stop bits: 1
◦Flow Control: Xon/Xoff

2. Power down the switch by unplugging the power cord.

3. Hold down the mode button on the front left side of the switch and plug in the power cord. Do not release the mode button until you see the '''SYST''' LED blink amber and then turn solid green. When you release the mode button the '''SYST''' LED should blink green. The switch should now be in ''switch:'' mode.

4. Enter the '''flash_init''' command at the ''switch:'' prompt.

switch: flash_init
Initializing Flash...

5. Enter the '''load_helper''' command

switch: load_helper
switch:

6. Enter the '''dir flash:''' command

switch: dir flash:
Directory of flash:/

Output omitted.

4 -rwx 1131 <date> config.text

This is the configuration file.

5 -rwx 109 <date> info
6 -rwx 389 <date> env_vars
7 drwx 640 <date> html
18 -rwx 109 <date> info.ver
403968 bytes available (3208704 bytes used)
switch:

7. Rename the configuration file by entering '''rename flash:config.text flash:config.old'''. The config.text file is the file that contains the password definition.

switch: rename flash:config.text flash:config.old
switch:

8. Reboot the switch by entering the '''boot''' command.

switch: boot
Loading "flash:...

9. When the switch is done reloading the ''---System Configuration Dialog---''' will appear in the output. Answer '''no''' or press '''ctrl-c''' to leave the system 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

Press RETURN to get started.

Switch>

10. Enter '''enable''' to go into enable mode on the switch.

Switch>enable
Switch#

11. Rename the configuration file back to its orginal name by entering '''rename flash:config.old flash:config.text''' and press enter when the message appears ''Destination filename [config.text]''.

Switch#rename flash:config.old flash:config.text
Destination filename [config.text]

12. Copy the configuration file into memory by entering '''copy flash:config.text system:running-config'''. Press enter to verify.

Switch#copy flash:config.text system:running-config
Destination filename [running-config]?

Now the old configuration is loaded into RAM.

13. At this point you can reassign all of the passwords you don't know by entering global configuration mode and entering the following commands:

Sw1# conf t
Sw1(config)#enable secret <new_secret_password>
Sw1(config)#enable password <new_enable_password>
Sw1(config)#line vty 0 15
Sw1(config-line)#password <new_vty_password>
Sw1(config-line)#login
Sw1(config-line)#line con 0
Sw1(config-line)#password <new_console_password>

14. Save the running configuration to the startup configuration by entering either '''write memory''' or '''copy running-config startup-config'''

Sw1#write memory
Building configuration...
[OK]
Sw1#

You have reset your passwords without losing your configuration.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T16:59:50Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

1. If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Router>show version
<output omitted>
Configuration register is 0x2102

2. Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

3. Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

rommon 1 > confreg 0x2142
You must reset or power cycle for new config to take effect

4. Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory
<output Omitted>
router>

5. Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Would you like to enter the initial configuration dialog? [yes/no]: n

6. Enter '''Enable''' to enter enable mode.

Router>enable
Router#

7. To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Router#copy startup-config running-config

8. Enter '''show running-config''' to verify that the running configuration has been changed.

9. Enter '''configure terminal'''

Router#configure termial

10. To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''. Now is the time to reset any other passwords on the router as well.

Router(config)#enable secret < password >
Router(config)#^z

11. Issue the no shutdown command on each of the interfaces you are using.

12. Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Router#copy running-config startup-config

13. Return to global configuration mode by entering '''configure termial'''.

Router#configure terminal

14. Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Router(config)#config-register 0x2102
Router(config)#^Z

15. Enter '''reload''' to restart the router using the 0x2102 register.

Router>reload

Your passwords have now been reset.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T16:40:44Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. [[Standard Break Key Combinations]]

Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Enter '''Enable''' to enter enable mode.

To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Enter '''show running-config''' to verify that the running configuration has been changed.

Enter '''configure terminal'''

To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''.

Issue the no shutdown command on each of the interfaces you are using.

Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Enter '''reload''' to restart the router using the 0x2102 register.

*[[Password Recovery and Device Reset Procedures]]

Standard Break Key Combinations

2010-12-09T16:27:21Z

Jasonredlin:

== Standard Break Key Combinations ==

*[[Password Recovery and Device Reset Procedures]]

== Hyperterminal ==

IBM Compatible
Windows XP
Ctrl-Break

IBM Compatible
Windows 2000
Ctrl-Break

IBM Compatible
Windows 98
Ctrl-Break

(version 595160)
IBM Compatible
Windows 95
Ctrl-F6-Break

== Kermit ==

Sun Workstation
UNIX
Ctrl-\l
Ctrl-\b

== MicroPhone Pro ==

IBM Compatible
Windows
Ctrl-Break

== Minicom ==

IBM Compatible
Linux
Ctrl-a f

== ProComm Plus ==

IBM Compatible
DOS or Windows
Alt-b

== SecureCRT ==

IBM Compatible
Windows
Ctrl-Break

== Telix ==

IBM Compatible
DOS
Ctrl-End

== Telnet ==

N/A
N/A
Ctrl-], then type send brk

== Telnet to Cisco ==

IBM Compatible
N/A
Ctrl-]

== Teraterm ==

IBM Compatible
Windows
Alt-b

== Terminal ==

IBM Compatible
Windows
Break
Ctrl-Break

== Tip ==

Sun Workstation
UNIX
Ctrl-], then Break or Ctrl-c
~#

== VT 100 Emulation ==

Data General
N/A
F16

== Windows NT ==

IBM Compatible
Windows
Break-F5
Shift-F5
Shift-6 Shift-4 Shift-b (^$B)

== Z-TERMINAL ==

Mac
Apple
Command-b

== N/A ==

Break-Out Box
N/A
Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port
N/A
Control-Shft-6, then b

IBM Compatible
N/A
Ctrl-Break

*[[Password Recovery and Device Reset Procedures]]

Standard Break Key Combinations

2010-12-09T16:26:46Z

Jasonredlin:

== Standard Break Key Combinations ==

== Hyperterminal ==

IBM Compatible
Windows XP
Ctrl-Break

IBM Compatible
Windows 2000
Ctrl-Break

IBM Compatible
Windows 98
Ctrl-Break

(version 595160)
IBM Compatible
Windows 95
Ctrl-F6-Break

== Kermit ==

Sun Workstation
UNIX
Ctrl-\l
Ctrl-\b

== MicroPhone Pro ==

IBM Compatible
Windows
Ctrl-Break

== Minicom ==

IBM Compatible
Linux
Ctrl-a f

== ProComm Plus ==

IBM Compatible
DOS or Windows
Alt-b

== SecureCRT ==

IBM Compatible
Windows
Ctrl-Break

== Telix ==

IBM Compatible
DOS
Ctrl-End

== Telnet ==

N/A
N/A
Ctrl-], then type send brk

== Telnet to Cisco ==

IBM Compatible
N/A
Ctrl-]

== Teraterm ==

IBM Compatible
Windows
Alt-b

== Terminal ==

IBM Compatible
Windows
Break
Ctrl-Break

== Tip ==

Sun Workstation
UNIX
Ctrl-], then Break or Ctrl-c
~#

== VT 100 Emulation ==

Data General
N/A
F16

== Windows NT ==

IBM Compatible
Windows
Break-F5
Shift-F5
Shift-6 Shift-4 Shift-b (^$B)

== Z-TERMINAL ==

Mac
Apple
Command-b

== N/A ==

Break-Out Box
N/A
Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port
N/A
Control-Shft-6, then b

IBM Compatible
N/A
Ctrl-Break

*[[Password Recovery and Device Reset Procedures]]

Cisco Password Recovery and Device Reset Procedures

2010-12-09T16:24:23Z

Jasonredlin:

*[[Password Recovery for Cisco Router 1841]]
*[[Reset a Cisco Router to Factory Default Settings]]
*[[Recover Cisco Catalyst 2960 Switch Password]]
*[[Resetting Switch Configuration Including VLAN Configuration Files]]
*[[Standard Break Key Combinations]]

Standard Break Key Combinations

2010-12-09T16:18:40Z

Jasonredlin:

Standard Break Key Combinations

2010-12-09T16:16:54Z

Jasonredlin: /* Standard Break Key Combinations */

Standard Break Key Combinations

2010-12-09T16:12:10Z

Jasonredlin: /* Standard Break Key Combinations */

== Standard Break Key Combinations ==

Hyperterminal
IBM Compatible
Windows XP
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 2000
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 98
Ctrl-Break

Hyperterminal (version 595160)
IBM Compatible
Windows 95
Ctrl-F6-Break

Kermit
Sun Workstation
UNIX
Ctrl-\l
Ctrl-\b

MicroPhone Pro
IBM Compatible
Windows
Ctrl-Break

Minicom
IBM Compatible
Linux
Ctrl-a f

ProComm Plus
IBM Compatible
DOS or Windows
Alt-b

SecureCRT
IBM Compatible
Windows
Ctrl-Break

Telix
IBM Compatible
DOS
Ctrl-End

Telnet
N/A
N/A
Ctrl-], then type send brk

Telnet to Cisco
IBM Compatible
N/A
Ctrl-]

Teraterm
IBM Compatible
Windows
Alt-b

Terminal
IBM Compatible
Windows
Break
Ctrl-Break

Tip
Sun Workstation
UNIX
Ctrl-], then Break or Ctrl-c
~#

VT 100 Emulation
Data General
N/A
F16

Windows NT
IBM Compatible
Windows
Break-F5

Shift-F5

Shift-6 Shift-4 Shift-b (^$B)

Z-TERMINAL
Mac
Apple
Command-b

N/A
Break-Out Box
N/A
Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port
N/A
Control-Shft-6, then b

IBM Compatible
N/A
Ctrl-Break

Standard Break Key Combinations

2010-12-09T16:09:22Z

Jasonredlin: /* Standard Break Key Combinations */

== Standard Break Key Combinations ==

<nowiki>'''Software Platform Operating System Try This'''</nowiki>
Hyperterminal
IBM Compatible
Windows XP
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 2000
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 98
Ctrl-Break

Hyperterminal (version 595160)
IBM Compatible
Windows 95
Ctrl-F6-Break

Kermit
Sun Workstation
UNIX
Ctrl-\l

Ctrl-\b

MicroPhone Pro
IBM Compatible
Windows
Ctrl-Break

Minicom
IBM Compatible
Linux
Ctrl-a f

ProComm Plus
IBM Compatible
DOS or Windows
Alt-b

SecureCRT
IBM Compatible
Windows
Ctrl-Break

Telix
IBM Compatible
DOS
Ctrl-End

Telnet
N/A
N/A
Ctrl-], then type send brk

Telnet to Cisco
IBM Compatible
N/A
Ctrl-]

Teraterm
IBM Compatible
Windows
Alt-b

Terminal
IBM Compatible
Windows
Break

Ctrl-Break

Tip
Sun Workstation
UNIX
Ctrl-], then Break or Ctrl-c

~#

VT 100 Emulation
Data General
N/A
F16

Windows NT
IBM Compatible
Windows
Break-F5

Shift-F5

Shift-6 Shift-4 Shift-b (^$B)

Z-TERMINAL
Mac
Apple
Command-b

N/A
Break-Out Box
N/A
Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port
N/A
Control-Shft-6, then b

IBM Compatible
N/A
Ctrl-Break

Standard Break Key Combinations

2010-12-09T16:08:55Z

Jasonredlin:

== Standard Break Key Combinations ==

'''Software Platform Operating System Try This'''

Hyperterminal
IBM Compatible
Windows XP
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 2000
Ctrl-Break

Hyperterminal
IBM Compatible
Windows 98
Ctrl-Break

Hyperterminal (version 595160)
IBM Compatible
Windows 95
Ctrl-F6-Break

Kermit
Sun Workstation
UNIX
Ctrl-\l

Ctrl-\b

MicroPhone Pro
IBM Compatible
Windows
Ctrl-Break

Minicom
IBM Compatible
Linux
Ctrl-a f

ProComm Plus
IBM Compatible
DOS or Windows
Alt-b

SecureCRT
IBM Compatible
Windows
Ctrl-Break

Telix
IBM Compatible
DOS
Ctrl-End

Telnet
N/A
N/A
Ctrl-], then type send brk

Telnet to Cisco
IBM Compatible
N/A
Ctrl-]

Teraterm
IBM Compatible
Windows
Alt-b

Terminal
IBM Compatible
Windows
Break

Ctrl-Break

Tip
Sun Workstation
UNIX
Ctrl-], then Break or Ctrl-c

~#

VT 100 Emulation
Data General
N/A
F16

Windows NT
IBM Compatible
Windows
Break-F5

Shift-F5

Shift-6 Shift-4 Shift-b (^$B)

Z-TERMINAL
Mac
Apple
Command-b

N/A
Break-Out Box
N/A
Connect pin 2 (X-mit) to +V for half a second

Cisco to aux port
N/A
Control-Shft-6, then b

IBM Compatible
N/A
Ctrl-Break

Standard Break Key Combinations

2010-12-09T16:08:22Z

Jasonredlin: Created page with '== Standard Break Key Combinations == '''Software Platform Operating System Try This''' Hyperterminal IBM Compatible Windows XP Ctrl-Break Hyperterminal I…'

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:57:25Z

Jasonredlin: /* Recover Cisco Catalyst 2960 Switch Password */

== Recover Cisco Catalyst 2960 Switch Password ==

1. Connect to the console port of the switch a PC with terminal emulating software like Hyperterminal or TeraTerm. The terminal settings are as follows:

◦Bits per second (baud): 9600
◦Data bits: 8
◦Parity: None
◦Stop bits: 1
◦Flow Control: Xon/Xoff

2. Power down the switch by unplugging the power cord.

3. Hold down the mode button on the front left side of the switch and plug in the power cord. Do not release the mode button until you see the '''SYST''' LED blink amber and then turn solid green. When you release the mode button the '''SYST''' LED should blink green. The switch should now be in ''switch:'' mode.

4. Enter the '''flash_init''' command at the ''switch:'' prompt.

switch: flash_init
Initializing Flash...

5. Enter the '''load_helper''' command

switch: load_helper
switch:

6. Enter the '''dir flash:''' command

switch: dir flash:
Directory of flash:/

Output ommitted.

4 -rwx 1131 <date> config.text

This is the configuration file.

5 -rwx 109 <date> info
6 -rwx 389 <date> env_vars
7 drwx 640 <date> html
18 -rwx 109 <date> info.ver
403968 bytes available (3208704 bytes used)
switch:

7. Rename the configuration file by entering '''rename flash:config.text flash:config.old'''. The config.text file is the file that contains the password definition.

switch: rename flash:config.text flash:config.old
switch:

8. Reboot the switch by entering the '''boot''' command.

switch: boot
Loading "flash:...

9. When the switch is done reloading the ''---System Configuration Dialog---''' will appear in the output. Answer '''no''' or press '''ctrl-c''' to leave the system 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

Press RETURN to get started.

Switch>

10. Enter '''enable''' to go into enable mode on the switch.

Switch>enable
Switch#

11. Rename the configuration file back to its orginal name by entering '''rename flash:config.old flash:config.text''' and press enter when the message appears ''Destination filename [config.text]''.

Switch#rename flash:config.old flash:config.text
Destination filename [config.text]

12. Copy the configuration file into memory by entering '''copy flash:config.text system:running-config'''. Press enter to verify.

Switch#copy flash:config.text system:running-config
Destination filename [running-config]?

Now the old configuration is loaded into RAM.

13. At this point you can reassign all of the passwords you don't know by entering global configuration mode and entering the following commands:

Sw1# conf t
Sw1(config)#enable secret <new_secret_password>
Sw1(config)#enable password <new_enable_password>
Sw1(config)#line vty 0 15
Sw1(config-line)#password <new_vty_password>
Sw1(config-line)#login
Sw1(config-line)#line con 0
Sw1(config-line)#password <new_console_password>

14. Save the running configuration to the startup configuration by entering either '''write memory''' or '''copy running-config startup-config'''

Sw1#write memory
Building configuration...
[OK]
Sw1#

You have reset your passwords without losing your configuration.

*[[Password Recovery and Device Reset Procedures]]

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:42:06Z

Jasonredlin: /* Recover Cisco Catalyst 2960 Switch Password */

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:28:31Z

Jasonredlin:

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:23:06Z

Jasonredlin:

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:20:53Z

Jasonredlin:

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:11:36Z

Jasonredlin:

Recover Cisco Catalyst 2960 Switch Password

2010-12-09T15:11:10Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

1. COnnect to the console port of the switch a PC with terminal emulating software like Hyperterminal or TeraTerm. The terminal settings are as follows:

◦Bits per second (baud): 9600

◦Data bits: 8

◦Parity: None

◦Stop bits: 1

◦Flow Control: Xon/Xoff

*[[Password Recovery and Device Reset Procedures]]

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T15:06:12Z

Jasonredlin:

== Resetting Switch Configuration Including VLAN Configuration Files ==

To reset a switch to factory default settings use the '''erase statup-config''' or '''write erase''' command. These commands will not clear config-register or boot system settings. Boot system parameters are modified by using the '''boot''' command.

Note: If you don't have access to priveleged EXEC mode you must use the [[Recover Cisco Catalyst 2960 Switch Password]] process first.

1. Enter the '''write erase''' command from priveleged EXEC mode.

S1# write erase
Erasing the nvram filesystem will remove all files! Continue? [confirm]y[OK]
Erase of nvram: complete

2. Reload the switch by entering the '''reload''' command.

S1# reload
System configuration has been modified. Save? [yes/no]: n
!--- Do not save the configuration at this prompt. Otherwise, the switch
!--- reloads with the current running configuration and does not reset to default.
Proceed with reload? [confirm]y

When the reload is complete the switch has been reset to factory defaults '''except''' for the VLAN configuration.

== Reset VLAN Configuration ==

1. Use the '''show VLAN''' command to verify the VLAN Information.

S1# show vlan

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24

2 VLAN0002 active
3 VLAN0003 active
4 VLAN0004 active

Despite the erase of the startup configuration file, these user-created VLANs remain.

600 VLAN0600 active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 1002 1003
2 enet 100002 1500 - - - - - 0 0
3 enet 100003 1500 - - - - - 0 0
4 enet 100004 1500 - - - - - 0 0
600 enet 100600 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 1 1003
1003 tr 101003 1500 1005 - - - srb 1 1002
1004 fdnet 101004 1500 - - 1 ibm - 0 0
1005 trnet 101005 1500 - - 1 IBM - 0 0

2. To verify the VLAN.dat file enter the '''dir flash:''' command. '''Do not forget the colon.'''

S1# dir flash:

Directory of flash:/

2 -rwx 2487439 Mar 11 1993 01:25:32 c2950-i6q4l2-mz.121-9.EA1d.bin
3 -rwx 840 Mar 20 1993 09:20:09 vlan.dat

This vlan.dat file stores user-configured VLANs.

4 -rwx 2491435 Mar 08 1993 16:14:13 c2950-mvr.bin
6 -rwx 42 Mar 01 1993 00:07:35 env_vars
7 -rwx 109 Mar 11 1993 01:23:56 info
8 drwx 640 Mar 11 1993 01:26:35 html
19 -rwx 109 Mar 11 1993 01:26:35 info.ver

7741440 bytes total (1088512 bytes free)

3. Delete the VLAN.dat file from the flash using the '''delete''' command.

S1#delete flash:vlan.dat
Delete filename [vlan.dat]?
!--- Press Enter.
Delete flash:vlan.dat? [confirm]y

4. Reload the switch using the '''reload''' command.

S1# reload
Proceed with reload? [confirm]y
4w5d: %SYS-5-RELOAD: Reload requested

5. When the switch is up verify the VLAN information by entering the '''show VLAN''' command again.

Switch# show vlan

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1 enet 100001 1500 - - - - - 0 0
1002 fddi 101002 1500 - - - - - 0 0
1003 tr 101003 1500 - - - - - 0 0
1004 fdnet 101004 1500 - - - ieee - 0 0
1005 trnet 101005 1500 - - - IBM - 0 0
Switch#

User configured VLAN's should all be gone.

*[[Password Recovery and Device Reset Procedures]]

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T15:03:37Z

Jasonredlin:

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:48:22Z

Jasonredlin: /* Reset VLAN Configuration */

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:44:39Z

Jasonredlin: /* Reset VLAN Configuration */

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:39:45Z

Jasonredlin:

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:39:18Z

Jasonredlin:

Cisco Password Recovery and Device Reset Procedures

2010-12-09T14:32:07Z

Jasonredlin:

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:31:30Z

Jasonredlin:

Resetting Switch Configuration Including VLAN Configuration Files

2010-12-09T14:29:10Z

Jasonredlin: Created page with ' == Resetting Switch Configuration Including VLAN Configuration Files == To reset a switch to factory default settings use the '''erase statup-config''' or '''write erase''' co…'

Reset a Cisco Router to Factory Default Settings

2010-12-09T13:27:26Z

Jasonredlin:

== Reset a Cisco Router to Factory Default Settings ==

To perform this reset you must have privileged EXEC access on the router. If you don't you must perform the
password recovery procedure at [[Password Recovery for Cisco Router 1841]] first.

There are a couple of methods for resetting a Cisco 1841 router to it's factory default settings.

== Method #1 ==

1. Use the '''show version''' command to see if the configuration register is set to 0x2102. If it isn't then enter the following:

router#configure terminal
router(config)#config-register 0x2102
router(config)#end
router#

When you enter '''show version''' again the output will show '''(will be 0x2102 at next reload)''' after the current register setting.

2. Enter '''write erase''' to erase the start-up configuration.

3. Enter '''reload''' to reload the router. Do not save the configuration when prompted.

router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]

When the router is done reloading the System Configuration Dialog is displayed.

--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:

The router has the factory default settings now.

== Method #2 ==

The first method used the '''config-register 0x2102''' command in global configuration mode. This method will use the '''config-register 0x2142''' command in global configuration mode.

1. Enter '''config-register 0x2142''' command. Be sure you are in global configuration mode.

router#configure terminal
router(config)#config-register 0x2142
router(config)#end
router#

2. Reload the router by entering the '''reload''' command. Do not save the configuration when prompted.

router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]

3. The output shows "Would you like to enter the configuration dialog?". Enter '''no'''.

4. Go back into global configuration mode and enter '''config-register 0x2102''' to enable the router to use the start-up configuration file again.

5. Enter '''write memory''' in enable mode to save the runnning-config to the startup-config.

6. In enable mode enter the '''reload''' command to reload the router with the new startup configuration.

When the router is done reloading the System Configuration Dialog is displayed.

--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:

The router has the factory default settings now.

*[[Password Recovery and Device Reset Procedures]]

Password Recovery for Cisco Router 1841

2010-12-09T13:26:51Z

Jasonredlin:

== Password Recovery for Cisco Router 1841==

Recovering a Cisco 1841 Router Password
Connect to the console of the router.

If you can access the router use the show version command. The last line of the output should tell you the version that the configuration register is set to. If you can’t access the router because of a lost login or TACACS password then your configuration register is set to 0x2102.

Cycle power to the router and within 60 seconds enter the break sequence to enter ROMMON. The break sequence for HyperTerminal is Ctrl-Break and for Teraterm it is Alt-b.

Enter '''confreg 0x2142''' at the ''rommon 1>'' prompt to boot from flash.

Enter '''reset''' at the ''rommon 2>'' prompt to reboot the router but ignore the startup-config.

Enter '''no''' after the setup questions or press Ctrl-C to skip the initial setup.

Enter '''Enable''' to enter enable mode.

To recover your password, enter '''configure memory''' or '''copy startup-config running-config'''.

Enter '''show running-config''' to verify that the running configuration has been changed.

Enter '''configure terminal'''

To change your secret password enter '''enable secret <password>''' at the ''hostname(config)# prompt''.

Issue the no shutdown command on each of the interfaces you are using.

Enter '''config-register 0x2102''' and press '''Ctrl-z''' to save and leave privilege EXEC mode.

Enter '''write memory''' or '''copy running-config startup-config''' to save your changes to the startup configuration.

Enter '''reload''' to restart the router using the 0x2102 register.

*[[Password Recovery and Device Reset Procedures]]

Recover Cisco Catalyst 2960 Switch Password

2010-12-08T22:28:06Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

This page is in development.

Recover Cisco Catalyst 2960 Switch Password

2010-12-08T22:27:41Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

This page is obviously not complete yet.

Recover Cisco Catalyst 2960 Switch Password

2010-12-08T22:27:08Z

Jasonredlin:

== Recover Cisco Catalyst 2960 Switch Password ==

Cisco Password Recovery and Device Reset Procedures

2010-12-08T22:25:36Z

Jasonredlin:

*[[Password Recovery for Cisco Router 1841]]
*[[Reset a Cisco Router to Factory Default Settings]]
*[[Recover Cisco Catalyst 2960 Switch Password]]

Recover Cisco Catalyst 2960 Switch Password

2010-12-08T22:24:57Z

Jasonredlin: Created page with ' == Recover Cisco Catalyst 2960 Switch Password =='

== Recover Cisco Catalyst 2960 Switch Password ==

Reset a Cisco Router to Factory Default Settings

2010-12-08T21:43:58Z

Jasonredlin: /* Reset a Cisco Router to Factory Default Settings */

Cisco Password Recovery and Device Reset Procedures

2010-12-08T21:39:54Z

Jasonredlin:

*[[Password Recovery for Cisco Router 1841]]
*[[Reset a Cisco Router to Factory Default Settings]]

Reset a Cisco Router to Factory Default Settings

2010-12-08T21:39:24Z

Jasonredlin:

== Reset a Cisco Router to Factory Default Settings ==

To perform this reset you must have access to privileged EXEC access on the router. If you don't you must perform the
password recovery procedure at [[Password Recovery for Cisco Router 1841]] first.

There are a couple of methods for resetting a Cisco 1841 router to it's factory default settings.

== Method #1 ==

1. Use the '''show version''' command to see if the configuration register is set to 0x2102. If it isn't then enter the following:

router#configure terminal
router(config)#config-register 0x2102
router(config)#end
router#

When you enter '''show version''' again the output will show '''(will be 0x2102 at next reload)''' after the current register setting.

2. Enter '''write erase''' to erase the start-up configuration.

3. Enter '''reload''' to reload the router. Do not save the configuration when prompted.

router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]

When the router is done reloading the System Configuration Dialog is displayed.

--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:

The router has the factory default settings now.

== Method #2 ==

The first method used the '''config-register 0x2102''' command in global configuration mode. This method will use the '''config-register 0x2142''' command in global configuration mode.

1. Enter '''config-register 0x2142''' command. Be sure you are in global configuration mode.

router#configure terminal
router(config)#config-register 0x2142
router(config)#end
router#

2. Reload the router by entering the '''reload''' command. Do not save the configuration when prompted.

router#reload
System configuration has been modified. Save? [yes/no]: n
Proceed with reload? [confirm]

3. The output shows "Would you like to enter the configuration dialog?". Enter '''no'''.

4. Go back into global configuration mode and enter '''config-register 0x2102''' to enable the router to use the start-up configuration file again.

5. Enter '''write memory''' in enable mode to save the runnning-config to the startup-config.

6. In enable mode enter the '''reload''' command to reload the router with the new startup configuration.

When the router is done reloading the System Configuration Dialog is displayed.

--- System Configuration Dialog ---
Would you like to enter the initial configuration dialog? [yes/no]:

The router has the factory default settings now.

Reset a Cisco Router to Factory Default Settings

2010-12-08T21:24:23Z

Jasonredlin:

Reset a Cisco Router to Factory Default Settings

2010-12-08T21:20:45Z

Jasonredlin: Created page with '== Reset a Cisco Router to Factory Default Settings == To perform this reset you must have access to privileged EXEC access on the router. If you don't you must perform the pa…'

Cisco Password Recovery and Device Reset Procedures

2010-12-08T20:47:14Z

Jasonredlin: Created page with '*Password Recovery for Cisco Router 1841'

*[[Password Recovery for Cisco Router 1841]]