Question about Cisco 857 ADSL Wireless Router CISCO857WGEK9RF

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Breaking password on cisco 857w

Hi there. i bought used cisco 857w for my ccna study and i can not work out how to change existing password which was used by previous owner. i have win7 ultimate 64 bit. i downloaded hyperterminal and have it working on windows. when i open hyperterminal i enter the following values: name - cisco com port - com11 - thats where is my usb to paralel adapter connected to console port on router bit per second - 9600 flow control - none the rest is on default values than when i turn on the router it comes with following system info: Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(6)T3, REL EASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2006 by Cisco Systems, Inc. Compiled Fri 21-Jul-06 20:21 by kellythw Image text-base: 0x8002008C, data-base: 0x812D2C10 than the following: Press RETURN to get started! *Mar 1 00:00:04.979: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State change d to: Initialized *Mar 1 00:00:05.043: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State change d to: Enabled *Mar 1 00:00:08.843: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up *Mar 1 00:00:09.379: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to a dministratively down *Mar 1 00:00:09.459: %SYS-5-CONFIG_I: Configured from memory by console *Mar 1 00:58:25.375: %SYS-5-RESTART: System restarted -- Cisco IOS Software, C850 Software (C850-ADVSECURITYK9-M), Version 12.4(6)T3, REL EASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2006 by Cisco Systems, Inc. Compiled Fri 21-Jul-06 20:21 by kellythw *Mar 1 00:58:25.375: %SNMP-5-COLDSTART: SN ng a cold start *Mar 1 00:58:25.395: %SSH-5-ENABLED: SSH 1.99 has been enabled *Mar 1 00:58:25.395: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et0, changed state to up *Mar 1 00:58:25.447: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF *Mar 1 00:58:25.447: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF *Mar 1 00:58:26.047: %LINEPROTO-5-UPDOWN: Line protocol on Interface Dot11Radio 0, changed state to down *Mar 1 00:58:26.847: %LINK-5-CHANGED: Interface ATM0, changed state to administ ratively down *Mar 1 00:58:27.047: %LINK-3-UPDOWN: Interface FastEthernet3, changed state to up *Mar 1 00:58:27.047: %LINK-3-UPDOWN: Interface FastEthernet2, changed state to up *Mar 1 00:58:27.047: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to up *Mar 1 00:58:27.047: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up *Mar 1 00:58:27.175: %LINK-5-CHANGED: Interface Virtual-Dot11Radio0, changed st ate to administratively down *Mar 1 00:58:28.011: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, chan ged state to down *Mar 1 00:58:28.167: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et3, changed state to down *Mar 1 00:58:28.167: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et2, changed state to down *Mar 1 00:58:28.171: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et1, changed state to down *Mar 1 00:58:28.171: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthern et0, changed state to down *Mar 1 00:58:28.195: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Do t11Radio0, changed state to down i have no idea how to enter command line, i tried to press ctrl+break, ctrl+b, ctrl+F6, break/pause.... nothing happened can please any1 help me here how to progress with reseting the router to factory settings? when i was trying to setup the router via sdm, it's asking for hostname and password. when i enter my ip address as hostname and use default name/password cisco/cisco, it always comes out with message that i use invalid ip or name/password values. thanks a lot for help

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  • samu
    samu Feb 18, 2012

    hi Jeff, thank you for your help, but it doesnt help hitting ctrl+f6, doing that it will stop on message press RETURN to start!

  • samu
    samu Feb 18, 2012

    i mean press RETURN to get started! to be precise... i was trying even combination ctrl+f6+break/pause but i don't have any prompt line comming out or any place where im able to type commands... maybe i'm just a donk

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When the router first starts booting you need keep hitting the break sequence which should be crtl+F6 and that should bring you to ROMMON mode. you should get a prompt rommon 1>, that means you did it right. Now you need to change the configuration registers to 0x2142 by typing "confreg 0x2142". then type reset to restart the router. It should now ignore the saved config. hit crtl+c to cancel the initial setup, type "enable" to get to the enable prompt. Next type "copy startup-config running-config" to copy the startup configuration to the running configuration. Next type "configure terminal" to enter global configuration mode. Now you can type "enable secret <password>" to change the password to what you want. Last you need to change the config registers back to 0x2102 by entering the command config-register 0x2102.

Posted on Feb 18, 2012

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Posted on Apr 21, 2017

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