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Delete/install a basic Cisco router cfg?

By MJA ·
I have a Cisco 2500 series router that I picked up 2nd hand. They did not have the any info as far as a password or anything to get into the router. How can I set it back to factory deafult without any user/pw? I need details please. Thanks!!

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Delete/install a basic Cisco router cfg?

by Some Guy in Seattle In reply to Delete/install a basic Ci ...

Try this URL from Cisco (no spaces):

http://www.cisco.com/warp/public/779/smbiz/service/knowledge/general/recovery2.htm

Hope that helps -

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Delete/install a basic Cisco router cfg?

by MJA In reply to Delete/install a basic Ci ...
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Delete/install a basic Cisco router cfg?

by rgrowcock In reply to Delete/install a basic Ci ...

This is a little involved, but I'll give you as detailed answer as possible. I will assume that you are connecting to the router through a HyperTerminal with a Console cable.

1. Open a HyperTerminal
2. Boot or ReBoot the router
3. While therouter is booting, press the Ctrl + Break keys. The router will give a message along the lines of "boot" aborted due to user interrupt."
4. Type "o" lower case O
5. Type "o/r 0x2142" This resets the registry setting.
6. Type "I" for initialize the router
7. Now when the router reboots, it will ask you if you want to enter "setup" and just follow the steps to create a new configuration and make sure to copy that into the running configuration. You can use "copy run start" to do that.
8. The last thing to do is to reset the registry back to the original setting which should be 0x2102. To do that go into "enable mode", type "conf t" and then type "conf-reg 0x2102.
9. Type "reload" and reboot the router.
This is all there is to it. It sounds like a lot, but it doesn't take long to do it. The hardest part is making sure you get the break to happen when you first boot the router. You may have to reboot the router several times until you get the sequence right. Hope this helps. Roger

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Delete/install a basic Cisco router cfg?

by MJA In reply to Delete/install a basic Ci ...
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Delete/install a basic Cisco router cfg?

by MJA In reply to Delete/install a basic Ci ...

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