o Password Recovery Procedure for the Catalyst 6000 MSFC

Transcription

1 o Password Recovery Procedure for the Catalyst 6000 MSFC

2 Table of Contents Password Recovery Procedure...1 for the Catalyst 6000 MSFCI/MSFCII...1 Introduction...1 Before You Begin...1 Conventions...1 Prerequisites...1 Step by Step Procedure...1 Example of a Password Recovery on the Catalyst 6000 MSFC Module...2 Related Information...4 i

3 Password Recovery Procedure for the Catalyst 6000 MSFCI/MSFCII Introduction Before You Begin Conventions Prerequisites Step by Step Procedure Example of a Password Recovery on the Catalyst 6000 MSFC Module Related Information Introduction This document describes the password recovery procedure for the Catalyst 6000 Multilayer Switch Feature Card (MSFC). Note: The procedure listed below is applicable for Multilayer Switch Feature Card II (MSFCII) also. Before You Begin Conventions For more information on document conventions, see the Cisco Technical Tips Conventions. Prerequisites There are no specific prerequisites for this document. Step by Step Procedure To recover your password, follow the steps below: 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 Reset the MSFC module you want to do password recovery on. Use the reset <mod> 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.

4 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 mem 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 <password>. Replace <password> with your password.<password> 15. Use the show ip interface brief command to make sure that the interfaces that were in use earlier are showing "up/up" status. If any of the interfaces that were in use before the password recovery show "down/down", use the no shutdown command on that particular interface to bring it up. 16. Type config register 0x 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. 19. Type "^C^C^C" or "exit" to return to the switch console. Example of a Password Recovery on the Catalyst 6000 MSFC Module switch (enable) show module Mod Slot Ports Module Type Model Status BaseX Supervisor WS X6K SUP1A 2GE ok Multilayer Switch Feature WS F6K MSFC ok /100BaseTX Ethernet WS X6248 RJ 45 ok BaseX Ethernet WS X6408 GBIC ok MM OC 12 ATM WS X6101 OC12 MMF ok Mod Module Name Serial Num 1 SAD SAD SAD SAD SAD Mod MAC Address(es) Hw Fw Sw a 2a 9e to a 2a 9f (1) 5.4(3) a 2a 9c to a 2a 9d e 9f to e 9f 23 ff

5 a 2a a0 to a 2a df (1)E, 12.1(1)E, f0 af 24 d0 to f0 af 24 ff (0.24)V 5.4(3) 4 00 d0 58 e9 d0 f0 to 00 d0 58 e9 d0 f (0.24)V 5.4(3) 5 00 d0 bc ef to 00 d0 bc ef (5)XS, 12.0(5)XS, Mod Sub Type Sub Model Sub Serial Sub Hw 1 L3 Switching Engine WS F6K PFC SAD 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 switch(enable) switch console Trying Router 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 bytes (0x188480) 0xe58d8560 c6msfc boot mz XE1 < Don't use this image bytes (0x894d84) 0x1476de9 c6msfc jsv mz E.bin rommon 3 > boot bootflash:c6msfc jsv mz E.bin Self decompressing the image : ############################################################ 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 and subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at DFARS sec Cisco Systems, Inc. 170 West Tasman Drive San Jose, California Cisco Internetwork Operating System Software IOS (tm) MSFC Software (C6MSFC JSV M), Version 12.1(1)E, EARLY DEPLOYMENT RELEASE SOFTWARE Copyright (c) by cisco Systems, Inc. Compiled Fri 24 Mar 00 13:57 by kpma Image text base: 0x , data base: 0x6146A000 Cisco Cat6k MSFC (R5000) processor with 57344K/8192K bytes of memory. Processor board ID SAD R5000 CPU at 200Mhz, Implementation 35, Rev 2.1, 512KB L2 Cache Last reset from power on Bridging software. X.25 software, Version SuperLAT software (copyright 1990 by Meridian Technology Corp).

6 TN3270 Emulation software. 123K bytes of non volatile configuration memory. 4096K bytes of packet SRAM memory K 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 Copyright (c) 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 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/ YES unset up up Vlan YES TFTP administratively down down Vlan YES TFTP administratively down down Vlan YES TFTP administratively down down Vlan YES TFTP administratively down down Vlan 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# Related Information Technical Support Cisco Systems All contents are Copyright Cisco Systems, Inc. All rights reserved. Important Notices and Privacy Statement.