Cisco 1600 password reset 1

[Jones21]

I have a Cisco 1600 that was given to me that I wanted to have a play with on
booting it asks for a password I tried to follow a guide to reset the
password with out any luck

From doing some reading it points to the current user is unable to modify the
router configuration because of an AAA authorization rejection.

Could some one give me some help in resetting this to factory default ?
please

System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1600 platform with 8192 Kbytes of main memory

monitor: command "boot" aborted due to user interrupt
rommon 1 > confreg 0x2142

rommon 2 > reset

System Bootstrap, Version 12.0(3)T, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
C1600 platform with 8192 Kbytes of main memory

program load complete, entry point: 0x4020060, size: 0x165eac

%SYS-6-BOOT_MESSAGES: Messages above this line are from the boot loader.
program load complete, entry point: 0x2005000, size: 0x29baa7
Self decompressing the image :
#################################################
############################################################# [OK]

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

Cisco Internetwork Operating System Software
IOS (tm) 1600 Software (C1600-Y-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 06-Dec-99 19:38 by phanguye
Image text-base: 0x02005000, data-base: 0x0257465C

cisco 1601 (68360) processor (revision C) with 7680K/512K bytes of memory.
Processor board ID 17067858, with hardware revision 00000002
Bridging software.
X.25 software, Version 3.0.0.
1 Ethernet/IEEE 802.3 interface(s)
1 Serial(sync/async) network interface(s)
System/IO memory with parity disabled
8192K bytes of DRAM onboard
System running from RAM
7K bytes of non-volatile configuration memory.
4096K bytes of processor board PCMCIA flash (Read/Write)

--- System Configuration Dialog ---

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

Press RETURN to get started!

00:00:17: %LINK-3-UPDOWN: Interface Ethernet0, changed state to up
00:00:17: %LINK-3-UPDOWN: Interface Serial0, changed state to down
00:00:17: %QUICC_ETHER-1-LOSTCARR: Unit 0, lost carrier. Transceiver problem?
00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0, changed
sta
te to down
00:00:18: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed
state
to down
00:00:29: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) 1600 Software (C1600-Y-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Mon 06-Dec-99 19:38 by phanguye
00:00:31: %LINK-5-CHANGED: Interface Ethernet0, changed state to
administrativel
y down
00:00:31: %LINK-5-CHANGED: Interface Serial0, changed state to
administratively
down
Router>enable
Router#copy startup-config running-config
Destination filename [running-config]?
4185 bytes copied in 6.788 secs (697 bytes/sec)
nesnet-vr1#configure terminal
Command authorization failed.

 

[Cluebird]

As soon as you're doing the step of bringing in the saved config with the copy start run command, you're getting the aaa authorization kicking in and causing a problem. Rather than do that last copy startup-config running-config, just do erase startup-config do delete the old config.

You'll also have to restore the config-register.

Router>enable
Router#erase startup-config
Router#config t
Router(config)#config-register 0x2102
Router(config)#end

Just reload if you want, and your router is pristine and will boot to the System Configuration Dialog.

HTH

 

[Jones21]

Thank you that worked perfectly

 

[burtsbees]

The other way in this case would have been to tftp the startup config to a computer before you did the copy start run, modify the config with Word Pad (wipe out all the aaa stuff and add "no aaa ne"), then do what the Clued One said, and tftp the config back. That is if you wanted to keep the config running on it...

If I can get to the priv exec prompt in any used router or switch I buy (the #), then the first thing I do is tftp the config and the IOS.

Burt