執行Cisco IOS系統軟體的Catalyst 6500/6000系列交換器的密碼復原程式

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已更新: 2009 年 4 月 24 日
文件 ID:14981

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簡介

本檔案介紹如何在執行Cisco IOS®系統軟體的Catalyst 6500/6000系列交換器和Cisco 7600系列路由器上復原密碼。

必要條件

需求

本文件沒有特定需求。

採用元件

本文檔適用於基於Supervisor 1、Supervisor 2、Supervisor 720和虛擬交換系統(VSS)1440的系統。對於基於Supervisor 720的系統，本文檔在運行Cisco IOS軟體版本12.2(17)SX或更高版本時適用。如果您的Supervisor 720執行的版本早於此版本，請參閱搭載Supervisor 720且執行12.2(17)SX之前Cisco IOS系統軟體的Catalyst 6500的密碼復原程式。

注意：基於虛擬交換系統(VSS)1440的系統支援的軟體是Cisco IOS®軟體版本12.2(33)SXH1或更高版本。

背景

由於硬體不同，因此執行Cisco IOS系統軟體的Catalyst 6500/6000和Cisco 7600上的開機順序與Cisco 7200系列路由器不同。重新通電後，交換機處理器(SP)首先啟動。在很短的時間內（大約25到60秒），它將控制檯所有權轉移到路由處理器(RP(MSFC))。 RP繼續載入捆綁的軟體映像。在SP將控制檯控制權交給RP之後，您立即按Ctrl-brk至關重要。如果您傳送中斷序列太快，則最終會進入SP的ROMMON，而不是您應該處於的位置。在主控台上看到以下訊息後，傳送中斷順序： 

00:00:03: %OIR-6-CONSOLE: Changing console ownership to route processor

在此之後，口令恢復與普通路由器相同。

註：從此，運行Cisco IOS系統軟體的Catalyst 6000系列交換機稱為路由器。

慣例

如需文件慣例的詳細資訊，請參閱思科技術提示慣例。

逐步程序

由於交換機上運行的作業系統，該交換機被配置為路由器。密碼復原程式與Cisco 7200系列路由器執行的步驟相同，只不過您必須再等待約25至60秒才能開始break順序。

  1. 將終端機或具有終端模擬的PC連線到路由器的控制檯埠。使用以下終端機設定： 

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

    電纜規格檔案中介紹了所需的控制檯電纜規格。模組安裝指南中提供了有關如何連線到控制檯埠的說明。連線到控制檯埠 — Supervisor引擎部分提供了有用的資訊。

  2. 如果仍然可以訪問路由器，請發出show version命令，並記錄配置暫存器的設定。它通常為0x2102或0x102。按一下此處檢視show version命令的輸出。

  3. 如果您無法訪問路由器（由於登入或TACACS密碼丟失），您的配置暫存器設定為0x2102。

  4. 關閉路由器，然後在電源開關的幫助下重新開啟。

  5. caution 注意：只有在RP獲得控制檯埠的控制權後，才能啟動Break序列。

    在RP獲得控制檯埠的控制權後，立即按終端鍵盤上的Break。在執行Cisco IOS軟體的Catalyst 6000上，SP首先啟動。引導後，它將控制權交給RP。RP獲得控制後，啟動中斷順序。當您看到此訊息時，RP會取得主控台連線埠的控制。（在看到以下消息之前不要啟動中斷順序）： 

    00:00:03: %OIR-6-CONSOLE: Changing console ownership to route processor

    從此以後，口令恢復過程與任何其他路由器相同。如果Break按鍵順序不起作用，請參閱密碼復原期間的標準Break按鍵順序組合以瞭解其他按鍵組合。

  6. 在rommon 1>提示符下鍵入confreg 0x2142，以便在不載入配置的情況下從快閃記憶體啟動。

  7. 在rommon 2>提示符下鍵入reset。

    路由器重新啟動。但是，它會忽略儲存的配置。

  8. 在每個設定問題後鍵入no，或按Ctrl-C跳過初始設定過程。

  9. 在Router>提示時鍵入enable。

    您處於enable模式並看到Router#提示。

  10. 重要事項：發出configure memory或copy start running命令，將非易失性RAM(NVRAM)複製到記憶體中。不要發出configure terminal命令。

  11. 發出write terminal或show running命令。

    show running和write terminal命令顯示路由器的配置。在此配置中，您將在所有介面下看到shutdown命令。這意味著所有介面當前均已關閉。您會看到加密或未加密格式的密碼。

  12. 發出configure terminal命令以進入全域性配置模式並進行更改。

    現在提示符為hostname(config)#。

  13. 在全域性配置模式下發出enable secret < password > 命令以更改啟用密碼。

  14. 發出config-register 0x2102命令，或是在全域性配置模式下步驟2中記錄的值(Router(config)#)，將配置值設回其原始值。

  15. 更改虛擬終端密碼（如果存在）： 

    Router(config)#line vty 0 4
Router(config-line)#password cisco
Router(config-line)#^Z
Router#

  16. 在正常使用的每個介面上發出no shutdown命令。發出show ip interface brief命令以檢視介面及其當前狀態的清單。您必須處於啟用模式(Router#)才能執行show ip interface brief命令。以下是一個介面的範例：

    Router#show ip interface brief
Interface                  IP-Address      OK? Method Status                Prol
Vlan1                      172.17.10.10    YES TFTP   administratively down dow 
Vlan10                     10.1.1.1        YES TFTP   administratively down dow 
GigabitEthernet1/1         unassigned      YES unset  administratively down dow 
GigabitEthernet1/2         unassigned      YES TFTP   administratively down dow 
GigabitEthernet2/1         unassigned      YES TFTP   administratively down dow 
GigabitEthernet2/2         unassigned      YES TFTP   administratively down dow 
FastEthernet3/1            172.16.84.110   YES TFTP   administratively down dow 
<snip>...

Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#interface fastEthernet 3/1
Router(config-if)#no shutdown 
Router(config-if)#exit
Router(config)# <do other interfaces as necessary...>

  17. 按Ctrl-z離開配置模式。

    提示符現在為hostname#。

  18. 發出write memory或copy running startup命令以提交更改。

輸出示例

此處的示例顯示了實際的密碼恢復過程。此範例是在Catalyst 6000系列交換器的幫助下建立的。從show version和show module命令開始，檢視此示例中使用的元件。 

Press RETURN to get started.

Router>enable
Password: 

Router#show version
Cisco Internetwork Operating System Software 
IOS (tm) c6sup1_rp Software (c6sup1_rp-JSV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:14 by eaarmas
Image text-base: 0x60020950, data-base: 0x6165E000

ROM: System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE 
BOOTFLASH: MSFC Software (C6MSFC-BOOT-M), Version 12.1(6)E, EARLY DEPLOYMENT RE)

Router uptime is 14 minutes
System returned to ROM by power-on (SP by reload)
System image file is "sup-bootflash:c6sup11-jsv-mz.121-6.E"

Cisco Catalyst 6000 (R5000) processor with 114688K/16384K bytes of memory.
Processor board ID SAD04281AF6
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.
24 Ethernet/IEEE 802.3 interface(s)
2 Virtual Ethernet/IEEE 802.3  interface(s)
48 FastEthernet/IEEE 802.3 interface(s)
4 Gigabit Ethernet/IEEE 802.3 interface(s)
381K bytes of non-volatile configuration memory.
4096K bytes of packet SRAM memory.

16384K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2102

Router#
Router#show module
Slot Ports Card Type                                 Model                 Serial Number
---- ----- ----------------------------------------- --------------------- -----------
 1     2   Cat 6000 sup 1 Enhanced QoS (active)      WS-X6K-SUP1A-2GE      SAD043301JS   
 2     2   Cat 6000 sup 1 Enhanced QoS (standby)     WS-X6K-SUP1A-2GE      SAD03510114   
 3    48   48 port 10/100 mb RJ45                    WS-X6348-RJ-45        SAD04230FB6   
 6    24   24 port 10baseFL                          WS-X6024-10FL-MT      SAD03413322   

Slot MAC addresses                      Hw    Fw           Sw
---- ---------------------------------- ----- ------------ ----------
 1   00d0.c0d2.5540 to 00d0.c0d2.5541   3.2   unknown      6.1(0.105)OR
 2   00d0.bcf1.9bb8 to 00d0.bcf1.9bb9   3.2   unknown      6.1(0.105)OR
 3   0002.7ef1.36e0 to 0002.7ef1.370f   1.1   5.3(1) 1999- 6.1(0.105)OR
 6   00d0.9738.5338 to 00d0.9738.534f   0.206 5.3(1) 1999- 6.1(0.105)OR

Router#
Router#reload
Proceed with reload? [confirm]


!--- Here you turn off the power and then turn it back on. !--- Here it is done with a reload instead of a hard power-cycle.


00:15:28: %SYS-SP-3-LOGGER_FLUSHING: System pausing to ensure console debugging.

00:15:27: %C6KPWR-SP-4-DISABLED: power to module in slot 2 set off (admin reque)
00:15:28: %C6KPWR-SP-4-DISABLED: power to module in slot 3 set off (admin reque)
00:15:28: %C6KPWR-SP-4-DISABLED: power to module in slot 6 set off (admin reque)
00:15:28: %OIR-SP-6-CONSOLE: Changing console ownership to switch processor

00:15:28: %SYS-SP-3-LOGGER_FLUSHED: System was paused for 00:00:00 to ensure co.

00:15:30: %SYS-SP-3-LOGGER_FLUSHING: System pausing to ensure console debugging.

***
*** --- SHUTDOWN NOW ---
***

00:15:30: %SYS-SP-5-RELOAD: Reload requested
00:15:30: %OIR-SP-6-CONSOLE: Changing console ownership to switch processor


00:15:30: %SYS-SP-3-LOGGER_FLUSHED: System was paused for 00:00:00 to ensure co.

00:15:31: %OIR-SP-6-REMCARD: Card removed from slot 1, interfaces disabled


!--- First, the switch processor comes up.


System Bootstrap, Version 5.3(1)
Copyright (c) 1994-1999 by cisco Systems, Inc.
c6k_sup1 processor with 65536 Kbytes of main memory

Autoboot executing command: "boot bootflash:c6sup11-jsv-mz.121-6.E"

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. 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) c6sup1_sp Software (c6sup1_sp-SPV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:52 by eaarmas
Image text-base: 0x60020950, database: 0x605FC000

Start as Primary processor

00:00:03: %SYS-3-LOGGER_FLUSHING: System pausing to ensure console debugging ou.

00:00:03: %OIR-6-CONSOLE: Changing console ownership to route processor


!--- The RP now has control of the console. !--- This is when you send the break sequence.


System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE 
Copyright (c) 1998 by cisco Systems, Inc.

*** Address Error (Load/Fetch) Exception ***
Access address = 0x5e
PC = 0x5e, Cause = 0x10, Status Reg = 0x3040d003
ROM Monitor Can Not Recover From Exception
A Board Reset Is Issued

*** Software NMI ***
PC = 0xbfc0b6b0, SP = 0x00002a90
Cat6k-MSFC platform with 131072 Kbytes of main memory

Self decompressing the image : ################################################]

*** System received an abort due to Break Key ***
signal= 0x3, code= 0x0, context= 0x6049ed68
PC = 0x601011ac, Cause = 0x20, Status Reg = 0x34008002


!--- You are now in ROMMON mode on the RP. Continue the password !--- recovery procedure just as on any router. Changing the configuration !--- register from 0x2102 to 0x2142 causes the router to ignore the existing !--- configuration. You want it to be ignored because it has passwords that you do not !--- know.


rommon 1 > confreg 0x2142

You must reset or power cycle for new config to take effect
rommon 2 > reset 

System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE 
Copyright (c) 1998 by cisco Systems, Inc.
Cat6k-MSFC platform with 131072 Kbytes of main memory


Self decompressing the image : ################################################]

Attempt to download 'sup-bootflash:c6sup11-jsv-mz.121-6.E' ... okay
Starting download of 'sup-bootflash:c6sup11-jsv-mz.121-6.E': 8722810 bytes!!!!!!
Chksum: Verified!
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. 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) c6sup1_RP Software (c6sup1_rp-JSV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by Cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:14 by eaarmas
Image text-base: 0x60020950, database: 0x6165E000

Cisco Catalyst 6000 (R5000) processor with 114688K/16384K bytes of memory.
Processor board ID SAD04281AF6
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.
24 Ethernet/IEEE 802.3 interface(s)
1 Virtual Ethernet/IEEE 802.3  interface(s)
48 FastEthernet/IEEE 802.3 interface(s)
4 Gigabit Ethernet/IEEE 802.3 interface(s)
381K bytes of nonvolatile 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]: n


!--- The router ignores the saved configuration and enters !--- the initial configuration mode.


Press RETURN to get started!

00:00:03: %SYS-3-LOGGER_FLUSHED: System was paused for 00:00:00 to ensure conso.

00:00:04: %C6KPWR-4-PSINSERTED: power supply inserted in slot 1.
00:00:04: %C6KPWR-4-PSOK: power supply 1 turned on.
00:02:08: %SYS-SP-5-RESTART: System restarted --
Cisco Internetwork Operating System Software 
IOS (TM) c6sup1_SP Software (c6sup1_sp-SPV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:52 by eaarmas
00:02:13: L3-MGR: l2 flush entry installed
00:02:13: L3-MGR: l3 flush entry installed
00:02:14: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software 
IOS (TM) c6sup1_RP Software (c6sup1_rp-JSV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by Cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:14 by eaarmas
00:02:17: %C6KPWR-SP-4-DISABLED: power to module in slot 1 set off (admin reque)
00:02:18: %C6KPWR-SP-4-ENABLED: power to module in slot 3 set on
00:02:18: %C6KPWR-SP-4-ENABLED: power to module in slot 6 set on
00:02:28: sm_set_moduleFwVersion:  nonexistent module (1)
00:02:38: %SNMP-5-MODULETRAP: Module 1 [Up] Trap
00:02:38: %OIR-SP-6-INSCARD: Card inserted in slot 1, interfaces are now online
00:02:56: %SNMP-5-MODULETRAP: Module 6 [Up] Trap
00:02:56: %OIR-SP-6-INSCARD: Card inserted in slot 6, interfaces are now online
00:02:59: SP: SENDING INLINE_POWER_DAUGHTERCARD_MSG SCP MSG

00:02:59: %SNMP-5-MODULETRAP: Module 3 [Up] Trap
00:02:59: %OIR-SP-6-INSCARD: Card inserted in slot 3, interfaces are now online
Router>enable
Router#


!--- You go right into privilege mode without needing a password. !--- At this point, the configuration running-config is a default configuration !--- with all the ports administratively down (shutdown).


Router#copy startup-config running-config
Destination filename [running-config]? <press enter>


!--- This pulls in the original configuration. Since you are already in privilege !--- mode, the passwords in this configuration do not affect you.


4864 bytes copied in 2.48 secs (2432 bytes/sec)
Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#enable secret < password > [Choose a strong password with at least one capital letter, one number, and one special character.]


!--- Overwrite the password that you do not know. This is your new enable password.


Router(config)#^Z
Router#
Router#show ip interface brief
Interface                  IP-Address      OK? Method Status                Prol
Vlan1                      172.17.10.10    YES TFTP   administratively down dow 
Vlan10                     10.1.1.1        YES TFTP   administratively down dow 
GigabitEthernet1/1         unassigned      YES unset  administratively down dow 
GigabitEthernet1/2         unassigned      YES TFTP   administratively down dow 
GigabitEthernet2/1         unassigned      YES TFTP   administratively down dow 
GigabitEthernet2/2         unassigned      YES TFTP   administratively down dow 
FastEthernet3/1            172.16.84.110   YES TFTP   administratively down dow 
<snip>...


!--- Issue the no shut command on all interfaces that you want to bring up.


Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#interface fastEthernet 3/1
Router(config-if)#no shutdown 
Router(config-if)#exit


!--- Overwrite the virtual terminal passwords. 


Router(config)#line vty 0 4
Router(config-line)#password cisco
Router(config-line)#^Z
Router#


!--- Restore the configuration register to its normal state so that it !--- no longer ignores the stored configuration file.


Router#show version
Cisco Internetwork Operating System Software 
IOS (tm) c6sup1_rp Software (c6sup1_rp-JSV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:14 by eaarmas
Image text-base: 0x60020950, data-base: 0x6165E000

ROM: System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE 
BOOTFLASH: MSFC Software (C6MSFC-BOOT-M), Version 12.1(6)E, EARLY DEPLOYMENT RE)

Router uptime is 7 minutes
System returned to ROM by power-on (SP by reload)
System image file is "sup-bootflash:c6sup11-jsv-mz.121-6.E"

Cisco Catalyst 6000 (R5000) processor with 114688K/16384K bytes of memory.
Processor board ID SAD04281AF6
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.
24 Ethernet/IEEE 802.3 interface(s)
2 Virtual Ethernet/IEEE 802.3  interface(s)
48 FastEthernet/IEEE 802.3 interface(s)
4 Gigabit Ethernet/IEEE 802.3 interface(s)
381K bytes of non-volatile configuration memory.
4096K bytes of packet SRAM memory.

16384K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2142

Router#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
Router(config)#config-register 0x2102
Router(config)#^Z
Router#


!--- Verify that the configuration register is changed for the next reload.


Router#show version
Cisco Internetwork Operating System Software 
IOS (tm) c6sup1_rp Software (c6sup1_rp-JSV-M), Version 12.1(6)E, EARLY DEPLOYME)
TAC Support: http://www.cisco.com/cgi-bin/ibld/view.pl?i=support
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Sat 17-Mar-01 00:14 by eaarmas
Image text-base: 0x60020950, data-base: 0x6165E000

ROM: System Bootstrap, Version 12.0(3)XE, RELEASE SOFTWARE 
BOOTFLASH: MSFC Software (C6MSFC-BOOT-M), Version 12.1(6)E, EARLY DEPLOYMENT RE)

Router uptime is 8 minutes
System returned to ROM by power-on (SP by reload)
System image file is "sup-bootflash:c6sup11-jsv-mz.121-6.E"

Cisco Catalyst 6000 (R5000) processor with 114688K/16384K bytes of memory.
Processor board ID SAD04281AF6
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.
24 Ethernet/IEEE 802.3 interface(s)
2 Virtual Ethernet/IEEE 802.3  interface(s)
48 FastEthernet/IEEE 802.3 interface(s)
4 Gigabit Ethernet/IEEE 802.3 interface(s)
381K bytes of non-volatile configuration memory.
4096K bytes of packet SRAM memory.

16384K bytes of Flash internal SIMM (Sector size 256K).
Configuration register is 0x2142 (will be 0x2102 at next reload)
Router#
Router#copy running-config startup-config
Destination filename [startup-config]? <press enter>
Building configuration...
[OK]
Router#


!--- Optional: If you want to test that the router !--- operates properly and that you have changed !--- the passwords, then reload and test.


Router#reload
Proceed with reload? [confirm] <press enter>

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修訂 發佈日期 意見
1.0
24-Apr-2009
初始版本

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