RECOVERY PASSWORD PADA CATALYST CISCO

Cara ini saya temukan di website cisco ketika salah satu temen saya mau pasang catalyst cisco di sentral tapi lupa password consolenya. Walhasil bergurulah kami pada uncle google. Supaya gampang nyarinya klo kami lupa lagi (maklum lupa adalah salah satu hobi kita hehehe..) saya tulis aja

1. Konsol dulu catalyst cisconya pake Hyperterminal.
2. Matikan power
3. Nyalakan lagi powernya sambil menekan tombol mode yang ada di sebelah kiri depan catalsyt untuk melakukan interupt.

biar nggak bingung nih saya kasih gambarnya :langkah-langkahnya disini. Berikut selengkapnya :

Catatan : khusus untuk cisco catalyst 2955 tidak menggunakan tombol mode untuk melakukan interupt, tapi menggunakan ctrl + break.
Adapun tampilan yang akan terlihat pada hyperterminal adalah sbb :

C2955 Boot Loader (C2955-HBOOT-M) Version 12.1(0.0.514), CISCO DEVELOPMENT TEST
VERSION
Compiled Fri 13-Dec-02 17:38 by madison
WS-C2955T-12 starting...
Base ethernet MAC Address: 00:0b:be:b6:ee:00
Xmodem file system is available.
Initializing Flash...
flashfs[0]: 19 files, 2 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 7741440
flashfs[0]: Bytes used: 4510720
flashfs[0]: Bytes available: 3230720
flashfs[0]: flashfs fsck took 7 seconds.
...done initializing flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4

*** The system will autoboot in 15 seconds ***
Send break character to prevent autobooting.


!--- Wait until you see this message before
!--- you issue the break sequence.
!--- Ctrl+Break is entered using Hyperterm.

The system has been interrupted prior to initializing the flash file system to finish
loading the operating system software:

flash_init
load_helper
boot
switch:

4. Masukkan perintah flash_init :
switch: flash_init
Initializing Flash...
flashfs[0]: 143 files, 4 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 3612672
flashfs[0]: Bytes used: 2729472
flashfs[0]: Bytes available: 883200
flashfs[0]: flashfs fsck took 86 seconds
....done Initializing Flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4
switch:

!--- This output is from a 2900XL switch. Output from
!--- other switches will vary slightly.

5. Masukkan perintah load_helper :

switch: load_helper
switch:

6. Masukkan perintah dir flash:

Router>
Note: Make sure to type a colon ":" after the dir
flash.

The switch file system is displayed:

switch: dir flash:
Directory of flash:/
2    -rwx  1803357                  c3500xl-c3h2s-mz.120-5.WC7.bin
!--- This is the current version of software.
4    -rwx  1131                     config.text
!--- This is the configuration file.
5    -rwx  109                      info
6    -rwx  389                      env_vars
7    drwx  640                      html
18   -rwx  109                      info.ver
403968 bytes available (3208704 bytes used)
switch:
!--- This output is from a 3500XL switch. Output from
!--- other switches will vary slightly.

7. Ketik : rename flash:config.text flash:config.old untuk merubah nama configuration file

switch: rename flash:config.text flash:config.old
switch:
!--- The config.text file contains the password
!--- definition.

8. Ketik perintah boot agar sistem melakukan booting.

switch: boot
Loading "flash:c3500xl-c3h2s-mz.120-5.WC7.bin"...###############################
################################################################################
######################################################################
File "flash:c3500xl-c3h2s-mz.120-5.WC7.bin" uncompressed and installed, entry po
int: 0x3000
executing...
!--- Output suppressed.
!--- This output is from a 3500XL switch. Output from other switches
!--- will vary slightly.

9. Ketik "n" pada configuration dialog :

--- System Configuration Dialog ---
At any point you may enter a question mark '?' for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets '[]'.
Continue with configuration dialog? [yes/no]: n
!--- Type "n" for no.
Press RETURN to get started.
!--- Press Return or Enter.
Switch>
!--- The Switch> prompt is displayed.

10. Ketik "en" untuk masuk ke mode enable.

Switch>en
Switch#

11. Ketik : rename flash:config.old flash:config.text untuk mengembalikan nama asli pada configuration file.
Switch#rename flash:config.old flash:config.text

Destination filename [config.text]
!--- Press Return or Enter.
Switch#

12. Copy Configuration file ke memory.

Switch#copy flash:config.text system:running-config
Destination filename [running-config]?
!--- Press Return or Enter.
1131 bytes copied in 0.760 secs
Sw1#
The configuration file is now reloaded.

13. Setting ulang password yang diinginkan pada catalyst.
Note: Overwrite the passwords which are necessary. You need not
overwrite all of the mentioned passwords.Sw1# conf t

!--- To overwrite existing secret password
Sw1(config)#enable secret
!--- To overwrite existing enable password
Sw1(config)#enable password
!--- To overwrite existing vty password
Sw1(config)#line vty 0 15
Sw1(config-line)#password
Sw1(config-line)#login
!--- To overwrite existing console password
Sw1(config-line)#line con 0
Sw1(config-line)#password 

14. Simpan konfigurasi pada memory.

Sw1#write memory
Building configuration...
[OK]
Sw1#
15. Selesai, Good Luck.

Ref :http://www.cisco.com/en/US/products/hw/switches/ps628/products_password_recovery09186a0080094184.shtml

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: