2600 series Password Change instance

2600 series instance modification, use

Ctrl + BREAK interrupt start. Note the prompt "monitor: command" boot "aborted due to user interrupt.

As follows:

System Bootstrap, Version 11.3 (2) XA4, release software (fc1)

(Omitted)

PC = 0xfff0a530, Vector = 0x500, SP = 0x80004374

Monitor: command "boot" aborted due to user interrupt

Rommon 1> confreg 0x2142

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

The prompt is as follows:

Rommon 1> reset

After the restart, enter the privileged mode, copy startup-config to running-config, and change the password as follows:

Router # copy start run

Router # conf t

Router (config) # enable secret cisco

Restore the value of configuration register and save it as follows:

Machine (config) # config-register 0x2102

Router (config) # ^ Z

Router # copy run start

Cisco 2950 switch password recovery

2950 password recovery is different from 2600 vro password recovery. 2950 there is no register value for you to change, but you need to press the mode key after power-on again. In this case, if you connect to the console port, the machine will display flash_init, load_helper, run switchboot commands

Switch: flash_init

Run dir flash again: the configuration file is stored in config. text, and the password is also in it.

Rename flash: config. text flash: config. old

Boot

After startup, you will be asked if you need to enter the configuration menu, no

Enable

Rename flash: config. old flash: config. text

Copy flash: config. text system: running-config

After you finish,

Config terminal

No enable secret

Enable secret cisco

Exit

Copy run start

R3 # sh

* Mar 1 01:33:46. 535: % SYS-5-CONFIG_ I: Configured from console by console

R3 # sh run

Building configuration...

Current configuration: 879 bytes

!

Version 12.4:

Service timestamps debug datetime msec

Service timestamps log datetime msec

No service password-encryption

!

Hostname r3

!

Boot-start-marker

Boot-end-marker

!

!

No aaa new-model

Memory-size iomem 5

!

!

Ip cef

No ip domain lookup

!

!

!

Interface Serial0/0

No ip address

Shutdown

Serial restart-delay 0

!

Interface Serial0/1

Ip address 200.1.1.12 255.255.255.0

Serial restart-delay 0

!

Interface Serial0/2

No ip address

Shutdown

Serial restart-delay 0

!

Interface Serial0/3

No ip address

Shutdown

Serial restart-delay 0

!

Interface FastEthernet1/0

No ip address

Shutdown

Duplex auto

Speed auto

!

Ip http server

No ip http secure-server

Ip route 0.0.0.0 0.0.0.0 Serial0/1

!

!

!

Control-plane

!

!

!

Line con 0

Exec-timeout 0 0

Logging synchronous

Line aux 0

Line vty 0 4

No login

!

!

End

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