Cisco 2600 Series

[lancotec]

Hello every one, I have a Cisco Router 2600 Series and I would like to reset it to the config factory. I´m using Putty to perform the reset but I turned ON the router and send CTRL/Break from the keyboard, it doesn´t allow me to access the romon mode.  Even by selecting the special command Break from Putty I have no success.  

Is there another way to reset the router to the config factory, other than this?

[Kasun Bandara]

Hi,

you can login to router and use below commands to clear existing configurations and reload without saving.

#erase startup

#delete vlan.dat

rate this and mark as answer, if this resolved your concern

[lancotec]

Hi Kasun,

I forgot the password. This is why I want to reset it.

Thanks 

[balaji.bandi]

Do you have access to device and able to login or you lost login details ?

is this new 2600 or old

try below link :

https://www.hardreset99.com/routers/cisco/cisco-2600-factory-reset/

[lancotec]

Hi Balaji,

Unfortunately I don´t have the password.  I forgot !

Its an old model

Thanks

[lancotec]

Hi Balaji,

Unfortunately I don´t have the password.  I forgot the password!

Its an old model

Thanks

[lancotec]

I do have access to the route by asking to enter the password, but I don´t remember it.

[lancotec]

I already followed these steps with no success:

1. First switch off your router.
2. Then, switch on your router and within the first 20 seconds of startup send a break character to the terminal.
   • Windows OS – If you are using PuTTY, on your keyboard press Ctrl + Break buttons at the same time; or you right click on the bar at the top of the PuTTY window and select Special Command > Break.
   • Mac OS – If you are using terminal, on your keyboard press Control + A, then Control + B.
   • You may also refer to the Cisco page on Standard Break Key Sequence Combinations when Recover Password.
3. Next, You will immediately be taken to the prompt.
4. After that, at the prompt, type the following command to tell the Cisco router to skip the existing configuration or settings on startup: confreg 0x2142.
5. Then, at the prompt, type the following command to restart the Cisco router: reset.
6. The router will restart shortly.
7. Next, If you are prompted for initial configuration dialogue, type no.
8. Then, After the loading has stopped, press Return to be taken to the main prompt on screen.
9. At the prompt:
   • Type en to enter privileged mode
   • Type write erase to issue the erase comment
   • Type y to confirm erase command
   • Type configure t
   • Type config-register 0x2102 this tells the Cisco  router to process existing config on startup
   • Type end
10. Finally, switch off your router and then turn it back on. Your router has now been restored to the original factory configuration.

[balaji.bandi · Accepted solution]

did you follow the steps still not work? are you able to get into ROMMON ?

connect console capture all the logs and posts them here.

[lancotec]

Still did not work.  I was not able to get into ROMMON mode.  This is what I get by pressing CTRL/BREAK or special command via Putty:

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 65536 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0xd76044

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

Smart Init is disabled. IOMEM set to: 10

Using iomem percentage: 10

              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 12.2(11)T6,  RELEASE SOFTWARE (fc1)

TAC Support: http://www.cisco.com/tac

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Fri 14-Feb-03 05:22 by ccai

Image text-base: 0x8000809C, data-base: 0x81673EB0

cisco 2611 (MPC860) processor (revision 0x203) with 59392K/6144K bytes of memory.

Processor board ID JAD05030COV (472729635)

M860 processor: part number 0, mask 49

Bridging software.

X.25 software, Version 3.0.0.

2 Ethernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

32K bytes of non-volatile configuration memory.

16384K bytes of processor board System flash (Read/Write)

station-id number 551155059494

Press RETURN to get started!

*Mar  1 00:00:09.178: %PA-2-UNDEFPA: Undefined Port Adaptor type 65535 in bay 1

*Mar  1 00:00:13.313: %LINK-3-UPDOWN: Interface Ethernet0/0, changed state to up

*Mar  1 00:00:13.313: %LINK-3-UPDOWN: Interface Ethernet0/1, changed state to up

*Mar  1 00:00:13.313: %LINK-3-UPDOWN: Interface Serial0/0, changed state to down

*Mar  1 00:00:13.317: %LINK-3-UPDOWN: Interface Serial0/1, changed state to down

[balaji.bandi]

Try different terminals here some break commands and procedures: ( get Secure CRT) - what is the version of putty? what kind of cable ? 

https://www.cisco.com/c/en/us/support/docs/routers/10000-series-routers/12818-61.html

putty serial config

[lancotec]

I´m using Putty Release 0.76. Also I tried TeraTerm, latest version with no success.

I´m using a USB to Serial cable converter and a Console cable connectec do the Console port.

If I set the Row Control do None, nothing happen. It´s like there is no communication with the router.

[balaji.bandi]

if you have any other device, test the Console cable working as expected ? the procedure same we use all time.

At this stage, either i suspect console cable ? some reference for success.

https://www.cisco.com/c/en/us/support/docs/routers/2600-series-multiservice-platforms/15079-recovery-c2600.html

https://community.cisco.com/t5/other-security-subjects/2821-password-recovery-disabled/td-p/2098014

https://community.cisco.com/t5/networking-documents/cannot-break-to-rommon-because-the-no-service-password-recovery/ta-p/3131504

[crlcosta]

I have another device, a Cisco 2500 series, I was able to connect to it.

But I will get another console cable to test.

Thanks in advance for your attention