Erase all data (factory settings) on Cisco 1700 series Firewall


I've got the option to take some old Cisco equipment free from a company that's gone under: These are 1700 series firewalls and 1x Cisco 2600 router.

I need to erase all data - do a factory reset on the devices before i can take them off site.  

Does anyone know how to do this and if not too complicated a quick example.

Very much appreciated

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Ernie BeekExpertCommented:
You could do a: write erase or erase nvram: depending on what IOS you have.

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JohnAuthor Commented:
Ok thanks, do you know if this can be done whith a laptop and ethernet patch cable? or do i need other equiptment like serial cable etc?

Ernie BeekExpertCommented:
You can do it both from the console and/or a telnet/ssh session.
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JohnAuthor Commented:
so i can just use a patch cable from my laptop into the etehrnet port on the 1700 and use telnet?
Or do i need a console cable serial to rj45

Ernie BeekExpertCommented:
You are correct on both. Personally I prefer the console connection because u can't loose network connectivity using that :)
JohnAuthor Commented:
Cheers Ernie,
I'm not too bothered about loosing connection as i will just be using my laptop to do the hardware reset. Right i need to dig about and find out the telnet commands to do this.

Thanks for you help so far
JohnAuthor Commented:
I've just been reading up on this and apparently you can't reset enable passwords using Telnet and i need to do a full erase so i guess this will not work.
Ernie BeekExpertCommented:
Curious what you read.
Write erase removes the whole configuration so that includes any passwords.
you can do erase startup-config and delete vlan.dat and then reboot the router...the whole configuration will be deleted including your password...
JohnAuthor Commented:
Thanks for the info guys.

I've got a 8 port switch now so i'm going to attempt to do this. Can you please confirm that the way i've got it setup will work.

8 port switch - straight through patch cable to laptop Nic and other end to the Cisco ethernet port ( not console )

what next???

Ernie BeekExpertCommented:
Give your laptop an address in the same range as the router, telnet to it, log on, enable and give in the commands. That should do it.
JohnAuthor Commented:
ok thanks dood.. i will let you know how i get on and i really appreciate your help and the other chap..

Off for a few beeeeeeerz now need to chillax
Ernie BeekExpertCommented:
Have one on me :)
JohnAuthor Commented:
Got this working.
Got a console cable made up - used hyper terminal ( trial ver 30 day)
Used Ctrl Break to get into the system and followed the procedure from Cisco on how to reset the enable secret Pw - Changed that and logged in and the reset to factory default part is a doddle.  

Thankyou for your assistance
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