Recover Cisco Catalyst 3650 Switch Password - Revision history

BenFranske at 02:30, 16 October 2019

2019-10-16T02:30:21Z

← Older revision		Revision as of 02:30, 16 October 2019
Line 24:		Line 24:
	switch:		switch:

	7. Boot the switch ~~using the packages.conf file~~ from flash		7. Boot the switch from flash

	switch: boot ~~flash:packages.conf~~		switch: boot

	switch:		switch:
Line 68:		Line 68:
	Sw1(config)#no boot manual		Sw1(config)#no boot manual

	13. Save the running configuration to the startup configuration by entering either '''write memory''' or '''copy running-config startup-config'''.		13. Disable ignoring the startup-configuration file with the '''no system ignore startupconfig switch all''' command.
			Sw1(config)#no system ignore startupconfig switch all

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

	Sw1#write memory		Sw1#write memory

BenFranske at 00:04, 18 September 2019

2019-09-18T00:04:25Z

← Older revision		Revision as of 00:04, 18 September 2019
Line 18:		Line 18:
	Initializing Flash...		Initializing Flash...

	6. ~~Enter~~ the ~~'''dir flash:''' command~~		6. Tell the switch to ignore the startup configuration

	switch: ~~dir flash:~~		switch: SWITCH_IGNORE_STARTUP_CFG=1
	~~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:		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.~~		7. Boot the switch using the packages.conf file from flash

	switch: ~~rename~~ flash:~~config~~.~~text flash:config.old~~		switch: boot flash:packages.conf

	switch:		switch:

	8~~. Reboot the switch by entering the '''boot''' command.~~		8. When the switch is done reloading the ''Would you like to enter the initial configuration dialog?[yes/no]:''' question will appear in the output. Answer '''no''' or press '''ctrl-c''' to leave the system configuration dialog.

	~~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 ---		--- System Configuration Dialog ---
Line 58:		Line 42:
	Switch>		Switch>

	10. Enter '''enable''' to go into enable mode on the switch.		9. Enter '''enable''' to go into enable mode on the switch.

	Switch>enable		Switch>enable
	Switch#		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]''.~~		10. Copy the startup configuration to running configuration by typing '''copy startup-config running-config''' and press enter when the message appears ''Destination filename [running-config]''.

	~~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		Switch#copy startup-config running-config
	Destination filename [running-config]?		Destination filename [running-config]

	Now the old configuration is loaded into RAM.		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:		11. 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# conf t
Line 86:		Line 65:
	Sw1(config-line)#password <new_console_password>		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'''.		12. Disable manual boot on the device with the '''no boot manual''' command.
			Sw1(config)#no boot manual

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

	Sw1#write memory		Sw1#write memory

BenFranske at 01:33, 4 September 2019

2019-09-04T01:33:01Z

← Older revision		Revision as of 01:33, 4 September 2019
Line 11:		Line 11:
	2. Power down the switch by unplugging the power cord.		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''' and '''ACTV'' LEDs turn amber. BEFORE that happens the '''SYST''' LED will go from a slow blink to a fast blink. It will take more than 15 seconds for this to happen. AFTER the '''SYST''' and '''ACTV'' LEDs turn amber release the mode button and '''SYST''' LED should start to blink again. The switch should now be in ''switch:'' mode.		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''' and '''ACTV''' LEDs turn amber. BEFORE that happens the '''SYST''' LED will go from a slow blink to a fast blink. It will take more than 15 seconds for this to happen. AFTER the '''SYST''' and '''ACTV''' LEDs turn amber release the mode button and '''SYST''' LED should start to blink again. The switch should now be in ''switch:'' mode.

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

BenFranske: Created page with "== Recover Cisco Catalyst 3650 Switch Password == 1. Connect to the console port of the switch a PC with terminal emulating software like TeraTerm or PuTTY. The terminal se..."

2019-09-04T01:32:49Z

Created page with "== Recover Cisco Catalyst 3650 Switch Password == 1. Connect to the console port of the switch a PC with terminal emulating software like TeraTerm or PuTTY. The terminal se..."

New page

== Recover Cisco Catalyst 3650 Switch Password ==

1. Connect to the console port of the switch a PC with terminal emulating software like TeraTerm or PuTTY. 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''' and '''ACTV'' LEDs turn amber. BEFORE that happens the '''SYST''' LED will go from a slow blink to a fast blink. It will take more than 15 seconds for this to happen. AFTER the '''SYST''' and '''ACTV'' LEDs turn amber release the mode button and '''SYST''' LED should start to blink again. The switch should now be in ''switch:'' mode.

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

switch: flash_init
Initializing Flash...

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]]