Password Recovery Procedure for the Cisco Catalyst 6000 MSFC

Description

This document describes the password recovery procedure for the Cisco Catalyst 6000 Multilayer Switch Feature Card (MSFC).

Step-by-Step Procedure

1. Attach a terminal or PC with terminal emulation to the console port of the switch.
   
   Use the following terminal settings: 9600 baud, no parity, 8 data bits, 1 stop bit
   
   
2. Type show module to determine the MSFC card on which to do password recovery.
   
   The MSFC module is in slot 15 or 16.
   
   
3. Reset the MSFC module you want to do password recovery on.
   Use the reset command to do this.
   
   
4. Wait 5 seconds and then connect to the MSFC console using the switch console command.
   
   
5. After seeing the message "Connected to Router", issue a break sequence.
   
   The break key is a unique sequence that will break the MSFC into rommon. If this does not work, please refer to the break sequence page.
   
   The MSFC will boot to a rommon> prompt.
   
   
6. Type confreg 0x42 at the rommon> prompt to configure the MSFC to boot without its configuration.
   
   
7. Display the current software in bootflash by issuing the dir bootflash: command and record the current software version.
   
   
8. Boot the system with the boot bootflash:<image filename> command.
   
   NOTE : Do NOT boot the system using the c6msfc-boot image. Doing so will result in loss of configuration after the password recovery process.
   
   
9. After the system boots, answer "No" to all the set-up questions or press Ctrl-C to skip the initial set-up procedure.
   
   
10. Type enable at the Router> prompt. This will put you in enable mode and you will see the Router# prompt.
    
    
11. Type config mem or copy startup-config running-config to copy the nonvolatile RAM (NVRAM) into memory.
    
    This is a crucial step. DO NOT save the configuration (do not use write term or copy running-config startup-config)
    
    
12. Type write terminal or show running-config.
    
    At this point, you should see the full configuration with the unknown enable password or enable secret. All other interfaces are shut down.
    
    
13. Type configure terminal to make the necessary changes.
    
    The prompt is now hostname(config)#
    
    
14. Type enable secret . Replacewith your password.
    
    
15. Use the no shutdown command on interfaces that are being used.
    
    If you use the show ip interface brief command, every interface that you want to use should be up.
    
    
16. Type config-register 0x2102
    
    
17. Press Ctrl-Z to leave the configuration mode. The prompt is now hostname#
    
    
18. Type write memory or copy running-config startup-config to commit the changes.

Example of a Password Recovery on the Catalyst 6000 MSFC Module

Example of a Password Recovery on the Catalyst 6000 MSFC Module

switch (enable) show module Mod Slot Ports Module-Type               Model               Status
--- ---- ----- ------------------------- ------------------- --------
1   1    2     1000BaseX Supervisor      WS-X6K-SUP1A-2GE    ok
15  1    1     Multilayer Switch Feature WS-F6K-MSFC         ok
3   3    48    10/100BaseTX Ethernet     WS-X6248-RJ-45      ok
4   4    8     1000BaseX Ethernet        WS-X6408-GBIC       ok
5   5    2     MM OC-12 ATM              WS-X6101-OC12-MMF   ok
 
Mod Module-Name         Serial-Num
--- ------------------- -----------
1                       SAD03423133
15                      SAD03414563
3                       SAD03242737
4                       SAD03220152
5                       SAD03433465
 
Mod MAC-Address(es)                        Hw     Fw         Sw
--- -------------------------------------- ------ ---------- -----------------
1   00-30-96-2a-2a-9e to 00-30-96-2a-2a-9f 1.0    5.2(1)     5.4(3)
    00-30-96-2a-2a-9c to 00-30-96-2a-2a-9d
    00-50-3e-9f-20-00 to 00-50-3e-9f-23-ff
15  00-30-96-2a-2a-a0 to 00-30-96-2a-2a-df 1.2    12.1(1)E,  12.1(1)E,
3   00-50-f0-af-24-d0 to 00-50-f0-af-24-ff 1.1    4.2(0.24)V 5.4(3)
4   00-d0-58-e9-d0-f0 to 00-d0-58-e9-d0-f7 2.1    4.2(0.24)V 5.4(3)
5   00-d0-bc-ef-03-68 to 00-d0-bc-ef-03-87 1.0    12.0(5)XS, 12.0(5)XS,
 
Mod Sub-Type                Sub-Model           Sub-Serial  Sub-Hw
--- ----------------------- ------------------- ----------- ------
1   L3 Switching Engine     WS-F6K-PFC          SAD03424837 1.0

switch(enable) reset 15 Unsaved configuration on module 15 will be lost
Do you want to continue (y/n) [n]? y
2000 Jun 23 06:36:59 %SYS-5-MOD_RESET:Module 15 reset from Console//
Resetting module 15...

switch(enable) switch console Trying Router-15...
Connected to Router-15.
Type ^C^C^C to switch back...


(A break-sequence has been sent here) 
 
monitor: command "boot" aborted due to user interrupt
rommon 1 > confreg 0x42 You must reset or power cycle for new config to take effect
rommon 2 > dir bootflash: File size           Checksum   File name
   1606784 bytes (0x188480)   0xe58d8560    c6msfc-boot-mz.120-7.XE1

<--- Don't use this image to boot !!! 8998276 bytes (0x894d84) 0x1476de9 c6msfc-jsv-mz.121-1.E.bin rommon 3 > boot bootflash:c6msfc-jsv-mz.121-1.E.bin 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) MSFC Software (C6MSFC-JSV-M), Version 12.1(1)E, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Fri 24-Mar-00 13:57 by kpma
Image text-base: 0x60008900, data-base: 0x6146A000


Cisco Cat6k-MSFC (R5000) processor with 57344K/8192K bytes of memory.
Processor board ID SAD03414563
R5000 CPU at 200Mhz, Implementation 35, Rev 2.1, 512KB L2 Cache
Last reset from power-on
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
TN3270 Emulation software.
123K bytes of non-volatile configuration memory.
4096K bytes of packet SRAM memory.
 
16384K bytes of Flash internal SIMM (Sector size 256K).


  --- System Configuration Dialog ---


Would you like to enter the initial configuration dialog? [yes/no]: 
 
(ctrl-C pressed)
 
Press RETURN to get started!

Module online.
Cisco Internetwork Operating System Software 
IOS (tm) MSFC Software (C6MSFC-JSV-M), Version 12.1(1)E, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Fri 24-Mar-00 13:57 by kpma
Router>enable Router#
Router#copy startup-config running-config Destination filename [running-config]? 
1153 bytes copied in 0.236 secs
msfc-switch#configure terminal Enter configuration commands, one per line.  End with CNTL/Z. 
msfc-switch(config)#enable secret Cisco msfc-switch(config)#config-register 0x2102 msfc-switch(config)#^Z msfc-switch#show ip interface brief Interface                  IP-Address      OK? Method Status                Protocol
EOBC0/6                    127.0.0.12      YES unset  up                    up      
Vlan10                     10.1.1.2        YES TFTP   administratively down down    
Vlan20                     10.1.2.2        YES TFTP   administratively down down    
Vlan30                     10.1.3.2        YES TFTP   administratively down down    
Vlan40                     10.1.4.2        YES TFTP   administratively down down    
Vlan50                     10.1.5.2        YES TFTP   administratively down down    
msfc-switch#configure terminal Enter configuration commands, one per line.  End with CNTL/Z.
msfc-switch(config)#interface vlan10 msfc-switch(config-if)#no shutdown msfc-switch(config-if)#^Z msfc-switch#
00:02:16: %SYS-5-CONFIG_I: Configured from console by console
msfc-switch#write memory Building configuration...
[OK]
msfc-switch#

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