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cisco 878 username ve password sorunu

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(@Anonim)
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Konu başlatıcı
 

arkadaşlar ben cisco 878 kullanıyorum
kullanıcı adı ve parolamı unuttum.deffaulta nasıl çekebilirim.

 
Gönderildi : 29/01/2009 13:46

(@ErdemHACISALIHOGLU)
Gönderiler: 542
Honorable Member
 

Merhaba;


Hard reset atmayı denediniz mi ?

 
Gönderildi : 29/01/2009 13:58

(@esersolmaz)
Gönderiler: 3204
Illustrious Member Yönetici
 








Password Recovery Procedure for the Cisco 806, 826, 827, 828, 831, 836, and 837 Series Routers















Document ID: 12065


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Contents


Introduction
Prerequisites
      Requirements
      Components Used
      Related Products
      Conventions
Step-by-Step Procedure
Example of Password Recovery Procedure
NetPro Discussion Forums - Featured Conversations
Related Information


Introduction


This document describes how to recover the enable password and the enable secret passwords. These passwords protect access to privileged EXEC and configuration modes. The enable password password can be recovered, but the enable secret password is encrypted and must be replaced with a new password. Use the procedure described in this document in order to replace the enable secret password.


Note: Refer to Password Recovery Procedure for the Cisco 801, 802, 803, 804, 805, 811, and 813 Series Routers in order to recover a password on the Cisco 801, 802, 803, 804, 805, 811, and 813 Series Routers.


Prerequisites


Requirements


There are no specific requirements for this document.


Components Used


The information in this document is based on these hardware versions:




  • Cisco 806 Series Router



  • Cisco 826 Series Router



  • Cisco 827 Series Router



  • Cisco 828 Series Router



  • Cisco 831 Series Router



  • Cisco 836 Series Router



  • Cisco 837 Series Router


The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.


Related Products


Refer to Password Recovery Procedures for information on how to recover passwords for related products.


Conventions


Refer to Cisco Technical Tips Conventions for information on document conventions.


Step-by-Step Procedure


Follow these steps in order to recover your password:




  1. Attach a terminal or PC with terminal emulation to the console port of the router.


    Use these terminal settings:




    • 9600 baud rate



    • No parity



    • 8 data bits



    • 1 stop bit



    • No flow control


    Refer to these documents for information on how to cable and connect a terminal to the console port or the AUX port:




  2. If you can access the router, type show version at the prompt, and record the configuration register setting. See Example of Password Recovery Procedure in order to view the output of a show version command


    Note: The configuration register is usually set to 0x2102 or 0x102. If you can no longer access the router (because of a lost login or TACACS password), you can safely assume that your configuration register is set to 0x2102.



  3. Use the power switch in order to turn off the router, and then turn the router back on.


    Important Notes:




    • In order to simulate this step on a Cisco 6400, pull out and then plug in the Node Route Processor (NRP) or Node Switch Processor (NSP) card.



    • In order to simulate this step on a Cisco 6x00 with NI-2, pull out and then plug in the NI-2 card.



  4. Press Break on the terminal keyboard within 60 seconds of power up in order to put the router into ROMMON.


    If the break sequence does not work, refer to Standard Break Key Sequence Combinations During Password Recovery for other key combinations.



  5. Type confreg 0x2142 at the rommon 1> prompt in order to boot from Flash.


    This step bypasses the startup configuration where the passwords are stored.



  6. Type reset at the rommon 2> prompt.


    The router reboots, but ignores the saved configuration.



  7. Type no after each setup question, or press Ctrl-C in order to skip the initial setup procedure.



  8. Type enable at the Router> prompt.


    You are in enable mode and should see the Router# prompt.



  9. Type configure memory or copy startup-config running-config in order to copy the nonvolatile RAM (NVRAM) into memory.


    Important: Do not type copy running-config startup-config or write. These commands erase your startup configuration.



  10. Type show running-config.


    The show running-config command shows the configuration of the router. In this configuration, the shutdown command appears under all interfaces, which indicates all interfaces are currently shut down. In addition, the passwords (enable password, enable secret, vty, console passwords) are in either an encrypted or unencrypted format. You can reuse unencrypted passwords. You must change encrypted passwords to a new password.



  11. Type configure terminal.


    The hostname(config)# prompt appears.



  12. Type enable secret <password> in order to change the enable secret password. For example:


    hostname(config)#enable secret cisco



  13. Issue the no shutdown command on every interface that you use.


    If you issue a show ip interface brief command, every interface that you want to use should display up up.



  14. Type config-register <configuration_register_setting>. Where configuration_register_setting is either the value you recorded in step 2 or 0x2102 . For example:


    hostname(config)#config-register 0x2102



  15. Press Ctrl-z or end in order to leave the configuration mode.


    The hostname# prompt appears.



  16. Type write memory or copy running-config startup-config in order to commit the changes.


Example of Password Recovery Procedure


This section provides an example of the password recovery procedure. This example was created with a Cisco 2600 Series Router. Even if you do not use a Cisco 2600 Series Router, this output provides an example of what you should experience on your product.


Router>enable
Password:
Password:
Password:
% Bad secrets

Router>show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
Image text-base: 0x80008088, data-base: 0x80C524F8

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is "flash:c2600-is-mz.120-7.T"

cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

Configuration register is 0x2102

Router>


!--- The router was just powercycled, and during bootup a
!--- break sequence was sent to the router.

!

System received an abort due to Break Key

signal= 0x3, code= 0x500, context= 0x813ac158
PC = 0x802d0b60, Vector = 0x500, SP = 0x80006030
rommon 1 > confreg 0x2142

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

rommon 2 > reset

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
Copyright (c) 1999 by cisco Systems, Inc.
TAC:Home:SW:IOS:Specials for info
C2600 platform with 32768 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x6fdb4c

Self decompressing the image : ###############################
##############################################################
##############################################################
##############################################################
############################### [OK]

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) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
Image text-base: 0x80008088, data-base: 0x80C524F8

cisco 2611 (MPC860) processor (revision 0x202) with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

--- System Configuration Dialog ---

Would you like to enter the initial configuration dialog? [yes/no]: n

Press RETURN to get started!

00:00:19: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Ethernet0/1, changed state to up
00:00:19: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down
00:00:19: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0,
changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to up
Router>
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1,
changed state to up
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0,
changed state to down
00:00:20: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1,
changed state to down
00:00:50: %SYS-5-RESTART: System restarted --
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
00:00:50: %LINK-5-CHANGED: Interface BRI0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Ethernet0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Serial0/0,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Ethernet0/1,
changed state to administratively down
00:00:52: %LINK-5-CHANGED: Interface Serial0/1,
changed state to administratively down
00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to down
00:00:53: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/1,
changed state to down
Router>
Router>enable
Router#copy startup-config running-config
Destination filename [running-config]?
1324 bytes copied in 2.35 secs (662 bytes/sec)
Router#
00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1,
changed state to down
00:01:24: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:2,
changed state to down
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#enable secret < password >
Router(config)#^Z
00:01:54: %SYS-5-CONFIG_I: Configured from console by console
Router#show ip interface brief

Interface IP-Address OK? Method Status Protocol
Ethernet0/0 10.200.40.37 YES TFTP administratively down down
Serial0/0 unassigned YES TFTP administratively down down
BRI0/0 193.251.121.157 YES unset administratively down down
BRI0/0:1 unassigned YES unset administratively down down
BRI0/0:2 unassigned YES unset administratively down down
Ethernet0/1 unassigned YES TFTP administratively down down
Serial0/1 unassigned YES TFTP administratively down down
Loopback0 193.251.121.157 YES TFTP up up
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface Ethernet0/0
Router(config-if)#no shutdown
Router(config-if)#
00:02:14: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up
00:02:15: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet0/0,
changed state to up
Router(config-if)#interface BRI0/0
Router(config-if)#no shutdown
Router(config-if)#
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0:2, changed state to down
00:02:26: %LINK-3-UPDOWN: Interface BRI0/0, changed state to up
00:02:115964116991: %ISDN-6-LAYER2UP: Layer 2 for Interface BR0/0,
TEI 68 changed to up
Router(config-if)#^Z
Router#
00:02:35: %SYS-5-CONFIG_I: Configured from console by console
Router#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
[OK]
Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
Image text-base: 0x80008088, data-base: 0x80C524F8

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is "flash:c2600-is-mz.120-7.T"

cisco 2611 (MPC860) processor (revision 0x202)
with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.
2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

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
00:03:20: %SYS-5-CONFIG_I: Configured from console by console

Router#show version
Cisco Internetwork Operating System Software
IOS (tm) C2600 Software (C2600-IS-M), Version 12.0(7)T, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Tue 07-Dec-99 02:21 by phanguye
Image text-base: 0x80008088, data-base: 0x80C524F8

ROM: System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)

Router uptime is 3 minutes
System returned to ROM by abort at PC 0x802D0B60
System image file is "flash:c2600-is-mz.120-7.T"

cisco 2611 (MPC860) processor (revision 0x202)
with 26624K/6144K bytes of memory.
Processor board ID JAB031202NK (3878188963)
M860 processor: part number 0, mask 49
Bridging software.
X.25 software, Version 3.0.0.
Basic Rate ISDN software, Version 1.1.

2 Ethernet/IEEE 802.3 interface(s)
2 Serial(sync/async) network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash partition 1 (Read/Write)
8192K bytes of processor board System flash partition 2 (Read/Write)

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

Router#

 
Gönderildi : 29/01/2009 14:19

(@Anonim)
Gönderiler: 0
Konu başlatıcı
 

hocam

çok teşekkür ederim.

 

 
Gönderildi : 29/01/2009 15:55

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Ben halledemedim ya, bende 878 var, şifreyi unuttuk tabi; terminalden, hard reset veya herhangi bir şekilde nasıl reset yapılır ?


Bir de komutları nereden bulabilirim ? Tekrar yapılandırmam lazım...


Teşekkürler şimdiden.

 
Gönderildi : 22/03/2010 20:22

(@MuratFethiGumus)
Gönderiler: 68
Trusted Member
 

Ben aşağıdaki adımları uygulayarak daha önce router passwordünü kırmıştım;

İlk yapmamız gereken router açılırken IOS (işletim sistemi)'in yüklenmemesini
sağlamak olacaktır.

Bunun için açılıs sırasında CTRL+BREAK (CTRL+C) tuşlarına basılır. Bu
işlem ile cihazımız mini IOS denen sınırlı işlemlerin yapılabileceği işletim
sistemi ile açılır.

Şimdi komut satırına yazacağımız

Kod:

 
confreg 0x2142

 

komutu ile configuration-register'ı
değiştiririz.

Artık router'ımız açılışta NVRAM'den konfigürasyonu yüklemeyecektir.

Router'ı kapatım açalım. Şimdi eski çalışan konfigürasyonumuz yüklenemediği
için IOS bize adım adım yeni bir konfigürasyon oluşturmak isteyip
istemeyeceğimizi soruyor. Bu soruya No cevabı verdikten sonra default komut
satırımız olan

Kod:

router>

karşımıza çıkar.

Kod:

router>enable

yazıp enter'a bastığımızda artık şifresiz bir şekilde enable
mode'a geçmiş oluruz. Peki eski konfigürasyonumuz ne olacak?
Eski konfigürasyonumuz hala NVRAM içinde kayıtlıdır. Biz şu anda Runnin-Config
içindeyiz. Eski konfigürasyonumuzu geri almak için yapacağımız işlem çok basit.
Startup-Config içindeki konfigürasyonu Running-Config üzerine
kopyalayacağız. Bunun için aşağıdaki komutu vermeniz yeterlidir.

Kod:

 router#copy startup-config running-config

Tamam eski konfigürasyonu kurtardık.

Şimdide yeniden bir enable secret şifresi verelim. Bunun için global
configuration mod'a geçmemiz gerekiyor.

Kod:

 router#configure terminal

komutu ile global configuration
moda geçilir.

Kod:

 router(config)#enable secret şifreniz

komutuyla da yeni enable secret şifenizi
verebilirsiniz.
Bu işlemden sonra tekrar enable mod'a geçip RAM'de çalışan konfigürasyonu NVRAM'e
kaydetmemiz gerekiyor ki router kapanıp açılınca yaptığımız ayarlarla açılsın.

Kod:

router(config)#exit

Kod:

 router#copy running-config startup-config

Yukarıdaki işlemle kopyalamayı tamamlamış oluyoruz. Hem eski
konfigüraysonu kurtardık hemde enable secret şifremizi yeniledik. Yapmamız
gereken son bir işlem kaldı. Configuration Register'ı eski haline çevirmek.
Bunun için tekrar global configuration mod'a geçip aşağıdaki satırı yazmamız
yeterli olacaktır.

Kod:

router#configure terminal

router(config)# config-reg
0x2102

 

Bu son işlemden sonra router'ımızı
kapatıp açarsak yeni enable secret şifresi ve eski konfigürasyonumuzla
çalışmaya devam edebiliriz.

 
Gönderildi : 22/03/2010 20:50

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Sağolasın hocam, yarın ilk işim denemek olacak.

 
Gönderildi : 23/03/2010 02:10

(@MuratFethiGumus)
Gönderiler: 68
Trusted Member
 

 Bu linkte yardımcı olacaktır size, iyi çalışmalar..

 

http://www.cisco.com/en/US/docs/routers/access/800/850/software/configuration/guide/trouble.html#wp1038210

 

 
Gönderildi : 23/03/2010 12:08

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Hard reset attım, cisco cisco ile giriyorum. Your name ibaresi geliyor, ne yapmalıyım ?


Amacım bir an önce SDM yükleyebilemek 🙂 SDM için mutlaka IP mi lazım ? Fabrika çıkışı IP nedir ?

 
Gönderildi : 24/03/2010 19:03

(@vasviuysal)
Gönderiler: 7889
Üye
 

hocam o your name ibaresi bir wizard olabilirmi


 

 
Gönderildi : 24/03/2010 20:33

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Hyper Terminalde işlem yapıyorum, ne yazsam kabul etmiyor...

 
Gönderildi : 25/03/2010 14:03

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Hyper Terminalde işlem yapıyorum, ne yazsam kabul etmiyor...

 
Gönderildi : 25/03/2010 14:03

(@MuratFethiGumus)
Gönderiler: 68
Trusted Member
 

 

Cisco CLI tecrübeniz var mı acaba? Değilse biraz zor işiniz, profesyonel bir kullanıcıdan yardım almalısınız bence.

 
Gönderildi : 25/03/2010 14:18

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Tecrübem hiç yok; fakat şimdi SDM'den bağlandım. Sanırım enabled değil; çünkü arayüzde bir değişiklik yapamıyorum.

 
Gönderildi : 25/03/2010 17:24

(@MuratFethiGumus)
Gönderiler: 68
Trusted Member
 

 

SDM için sisteminizde Bölgesel Dil ayarlarının İngilizce olması gerekmekte ve ayrıca Java yüklenmiş olmalı.

 
Gönderildi : 25/03/2010 17:51

(@BulentUcar)
Gönderiler: 561
Prominent Member
 

Olay budur abicim, ingilizce yapınca oldu. Şimdi konfg. etmek için uğraşıcam teşekkürler.

 
Gönderildi : 25/03/2010 20:46

(@MuratFethiGumus)
Gönderiler: 68
Trusted Member
 

Rica ederim, kolay gelsin..

 
Gönderildi : 25/03/2010 21:57

(@resulkurekci)
Gönderiler: 11
Active Member
 

iyi günler yeni konu acmamak için sizin konunuza yazdım ama bende cisco 800 serisi bir g shdsl modem var ve şifresini yok bunu şifresini sıfırlamak için sizin makalenizi okudum fakat sınırlı os ekranına gecemiyorum


tech_GSHDSL> oluyor gene ve yazdığım komutlar olmuyor. yani bu komut confreg 0x2142 olmuyor  napabilirim

 
Gönderildi : 23/02/2011 14:24

(@ilyasYILDIZ)
Gönderiler: 441
Honorable Member
 

Hyper Terminal  yada putty ile cihaza bağlanın.

Cihazı kapatıp yeniden başlatın , ekrandan yazılar geçmeye başladığı anda " fonk. + break " kuş kombinasyonuna basın , eğer önünüze rommon 1 > gelerse bu noktadan sonra makaledeki adımları takip ederek yapabilirsiniz .

 
Gönderildi : 23/02/2011 14:57

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