Cisco Router Password recovery procedure

CISCO ROUTER PASSWORD RECOVERY

1.    Attach a terminal or PC with terminal emulation to the console port of the router.

Use these terminal settings:

• 9600 baud rat
•  No parity
• 8 data bits
• 1 stop bit
• No flow control

2.    Power cycle the router.

3.    Press Break on the terminal keyboard within 60 seconds of power up in order to put the router into ROMmon.

4.    ALSO TRY CNTRL+ALT+FN+Pause or CNTRL+ALT+FN+F12  if you can’t find the break key

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

5.    Type confreg 0x2142 at the rommon 1> prompt in order to boot from Flash.

This step bypasses the startup configuration where the passwords are stored.

6.    Type reset or i at the rommon 2> prompt.

7.    The router reboots, but ignores the saved configuration.

8.    Type no after each setup question, or press Ctrl-C in order to skip the initial setup procedure.

9.    Type enable at the Router> prompt.

You are in enable mode and should see the Router# prompt.

10. IF YOU DO NOT WANT THE EXISTING CONFIG THE GO TO STEP 17 otherwise continue to step 10.

11.  Type  copy startup-config running-config in order to copy the nonvolatile RAM (NVRAM) into memory

12.  Warning: Do not type copy running-config startup-config or write. These commands erase your startup configuration.

13.  Type configure terminal.

The router(config)# prompt appears.

14.  Type enable secret <password> in order to change the enable secret password. For example:

hostname(config)#enable secret cisco

15.  Issue the no shutdown command on every interface that you use.

16.  If you issue a show ip interface brief command, every interface that you want to use should display up up.

17.  Type configure terminal.

router(config)# prompt appears.

Type config-register 0x2102

Example     router(config)#config-register 0x2102

18.  Issue the no shutdown command on every interface that you use.

19.  If you issue a show ip interface brief command, every interface that you want to use should display up up.

20.  Press Ctrl-z or end in order to leave the configuration mode.

21.  The hostname# prompt appears. Type ; write memory or copy running-config startup-config in order to commit the changes.