思科4503交换机恢复出厂设置

Press Ctrl-C within 5 seconds to prevent autoboot. This action puts you in ROM monitor (ROMmon) prompt mode.

!--- Here, you power cycle the switch.

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* *

* Welcome to ROM Monitor for WS-X4014 System. *

* *

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ROM Monitor Program Version 12.1(10r)EY(1.21)

Board type 1, Board revision 7

Swamp FPGA revision 16, Dagobah FPGA revision 43

Timer interrupt test passed.

MAC Address : 00-02-b9-83-af-fe

IP Address : 172.16.84.122

Netmask : 255.255.255.0

Gateway : 172.16.84.1

TftpServer : Not set.

Main Memory : 256 MBytes

***** The system will autoboot in 5 seconds *****

Type control-C to prevent autobooting.

!--- At this point, press Ctrl-C.

Autoboot cancelled......... please wait!!!

rommon 1 > [interrupt]

!--- The module ended in the ROMmon.

rommon 1 > [interrupt]

Issue the confreg command at the rommon prompt.

Make the selections that appear here in boldface for password recovery:

rommon 1 > set

rommon 1 > confreg

Configuration Summary :

=> load ROM after netboot fails

=> console baud: 9600

=> autoboot from: commands specified in 'BOOT' environment variable

do you wish to change the configuration? y/n [n]: y

enable "diagnostic mode"? y/n [n]: n

enable "use net in IP bcast address"? y/n [n]: n

disable "load ROM after netboot fails"? y/n [n]: n

enable "use all zero broadcast"? y/n [n]: n

enable "break/abort has effect"? y/n [n]: n

enable "ignore system config info"? y/n [n]: y

change console baud rate? y/n [n]: n

change the boot characteristics? y/n [n]: n

Configuration Summary :

=> load ROM after netboot fails

=> ignore system config info

=> console baud: 9600

=> autoboot from: commands specified in 'BOOT' environment variable

do you wish to save this configuration? y/n [n]: y

You must reset or power cycle for new configuration to take effect

Note: You can also use the confreg 0x2142 command at the ROMmon prompt in order to set the configuration register value to bypass the startup configuration stored in NVRAM.

rommon 1 >confreg 0x2142

You must reset or power cycle for the new configuration to take effect.

Issue the reset command so that the module reboots.

Due to the changes that you made in step 2, the module reboots but ignores the saved configuration.

rommon 2 > reset

Resetting .......

rommon 3 >

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* Welcome to ROM Monitor for WS-X4014 System. *

* *

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!--- Output suppressed.

Press RETURN to get started!

!--- Press Return.

00:00:21: %SYS-5-RESTART: System restarted --

Cisco Internetwork Operating System Software

IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M),

Version 12.1(8a)EW, RELEASE SOFTWARE (fc1)

TAC Support: /tac

Compiled Thu 24-Jan-02 17:34 by ccai

00:00:21: %SNMP-5-COLDSTART: SNMP agent on host Switch

is undergoing a cold start

Switch>

Make sure that the configuration register value is 0x2142.

This value makes the module boot from Flash without a load of the saved configuration. Issue the enable command at the Switch prompt to go to enable mode. Then, issue the show version command to check the configuration register value.

Switch> enable

Switch#show version

Cisco Internetwork Operating System Software

IOS (TM) Catalyst 4000 L3 Switch Software (cat4000-IS-M),

Version 12.1(8a)EW, RELEASE SOFTWARE (fc1)

TAC Support: /tac

Compiled Thu 24-Jan-02 17:34 by ccai

Image text-base: 0x00000000, data-base: 0x00AA2B8C

ROM: 12.1(10r)EY(1.21)

Switch uptime is 5 minutes

System returned to ROM by reload

Running default software

cisco WS-C4006 (MPC8245) processor (revision 7) with 262144K bytes of memory.

Processor board ID FOX04183666

Last reset from Reload

32 Gigabit Ethernet/IEEE 802.3 interface(s)

467K bytes of non-volatile configuration memory.

Configuration register is 0x2142

Switch#

Issue the configure memory command or the copy startup-config running-config command to copy the NVRAM into memory.

Do not issue the configure terminal command, which shows the default configuration on the module.

Switch#configure memory

Uncompressed configuration from 1307 bytes to 3014 bytes

Switch#

00:13:52: %SYS-5-CONFIG_I: Configured from memory by console

c-4006-SUPIII#

Issue the show ip interface brief command to make sure that the interfaces that were in use earlier show an "up up" status.

If any of the interfaces that were in use before the password recovery show "down", issue the no shutdown command on that interface to bring the interface up.

Issue the write terminal command or the show running-config command to display the saved configuration on the module.

c-4006-SUPIII#show running-config

Building configuration...

Current configuration : 3014 bytes

version 12.1

no service pad

service timestamps debug uptime

service timestamps log uptime

no service password-encryption

service compress-config

hostname c-4006-SUPIII

boot system flash bootflash:

vtp mode transparent

!--- Output suppressed.

line con 0

stopbits 1

line vty 0 4

end

c-4006-SUPIII#

Now you are ready to change the password on the module.

Issue these commands to change the password:

c-4006-SUPIII#configure terminal

Enter configuration commands, one per line. End with CNTL/Z.

c-4006-SUPIII(config)#no enable secret

!--- This step is necessary if the switch had an enable

!--- secret password.

c-4006-SUPIII(config)#enable secret < password >

[Choose a strong password with at least one capital letter,

one number, and one special character.]

!--- This command sets the new password.

Make sure that you change the configuration register value back to 0x2102.

Complete these steps at the config prompt to change and verify the configuration register value.

c-4006-SUPIII(config)#config-register 0x2102

c-4006-SUPIII(config)# ^Z

c-4006-SUPIII#

00:19:01: %SYS-5-CONFIG_I: Configured from console by console

c-4006-SUPIII#write memory

!--- This step saves the configuration.

Building configuration...

Compressed configuration from 3061 bytes to 1365 bytes[OK]

c-4006-SUPIII#show version

!--- This step verifies the value change.

Cisco Internetwork Operating System Software

IOS (TM) Catalyst 4000 L3 Switch Software (cat4000-IS-M),

Version 12.1(8a)EW, RELEASE SOFTWARE (fc1)

TAC Support: /tac

Compiled Thu 24-Jan-02 17:34 by ccai

Image text-base: 0x00000000, database: 0x00AA2B8C

ROM: 12.1(10r)EY(1.21)

c-4006-SUPIII uptime is 20 minutes

System returned to ROM by reload

Running default software

cisco WS-C4006 (MPC8245) processor (revision 7) with 262144K bytes of memory.

Processor board ID FOX04183666

Last reset from Reload

32 Gigabit Ethernet/IEEE 802.3 interface(s)

467K bytes of nonvolatile configuration memory.

Configuration register is 0x2142 (will be 0x2102 at next reload)

c-4006-SUPIII#

At this point, you have changed the password.