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How do you reset a cisco 3600 back to factory default?
- Thread starter tiash
- Start date
check out this site
Let me know if this help!! Good Luck J.Fisher CCNA
Jeter@LasVegas.com
Let me know if this help!! Good Luck J.Fisher CCNA
Jeter@LasVegas.com
- Thread starter
- #3
No. this is if the password recovery mode is enabled.
On this router it is diabled. So you can not recover a password you have to reset the router back to factory default.
I've done it before and I would like to know the proper way. There isn't any docs that I could find on it. but if you press the CTRL-break at the initial boot randomly I get lucky and the prompt comes up that will ask if you want to set back to factory default.
I don't like to depend on luck I like to know the proper way to get the fastest and most dependable results.
Thanks,
On this router it is diabled. So you can not recover a password you have to reset the router back to factory default.
I've done it before and I would like to know the proper way. There isn't any docs that I could find on it. but if you press the CTRL-break at the initial boot randomly I get lucky and the prompt comes up that will ask if you want to set back to factory default.
I don't like to depend on luck I like to know the proper way to get the fastest and most dependable results.
Thanks,
If you have read the link supplied by jeter, you will notice the line that says:
"Break (system interrupt) is always enabled for 60 seconds after the router reboots, regardless of whether Break is configured on or off in the configuration register"
My guess is you're either not waiting long enough (at least 5 seconds) or waiting too long before "breaking" the router.
So, reboot the router & press cntr-break to enter ROMMON mode. From here you can either recover the password, or if it's encrypted, change the configuration register so you can enter the intial setup dialog when you reboot. Here's one method (taken from the same doc.):
I've tried this on a 3600 in my lab & it works great.
You might also be interested to know that there is a little-known bug in the 3600 platform that causes the router to boot to ROMMON mode if the router is power cycled several times in rapid succession. A colleague told me about this & I obsessively rebooted one of my test 3600's over a period of three days before I could get it to self-boot to ROMMON mode - so luck is definately a factor here.
Good luck!
"Break (system interrupt) is always enabled for 60 seconds after the router reboots, regardless of whether Break is configured on or off in the configuration register"
My guess is you're either not waiting long enough (at least 5 seconds) or waiting too long before "breaking" the router.
So, reboot the router & press cntr-break to enter ROMMON mode. From here you can either recover the password, or if it's encrypted, change the configuration register so you can enter the intial setup dialog when you reboot. Here's one method (taken from the same doc.):
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/3600ig/3600rom.htm#xtocid1499
I've tried this on a 3600 in my lab & it works great.
You might also be interested to know that there is a little-known bug in the 3600 platform that causes the router to boot to ROMMON mode if the router is power cycled several times in rapid succession. A colleague told me about this & I obsessively rebooted one of my test 3600's over a period of three days before I could get it to self-boot to ROMMON mode - so luck is definately a factor here.
Good luck!
here is another site if you wish too check it out.
J.Fisher CCNA
Jeter@LasVegas.com
J.Fisher CCNA
Jeter@LasVegas.com
- Thread starter
- #7
The problem is mot getting the break to work it works but there is a command that will disallow you to get into the RMMON mode. This is when the password recovery is diabled. This is to prevent you from doing exactly what you guys are doing.
I've spoken to Cisco and they say the only way to do this IS to set back to factory default.
IF I reboot and randomly tap the break I will get the option to set back to factory default.
There has to be a proper procedure to this. This is not a common issue. As far as I know.
I've spoken to Cisco and they say the only way to do this IS to set back to factory default.
IF I reboot and randomly tap the break I will get the option to set back to factory default.
There has to be a proper procedure to this. This is not a common issue. As far as I know.
Yours is indeed a sticky problem. I've had this happen to me only once -years ago- when I started a new job & inherited a bunch of routers fom my predecessor. One of these was booby-trapped in the same way yours is - a lost password for the ROMMON enable mode.
There are two ways that I know of to get around this:
1) Pull the boot ROM (PROM) & replace it with the boot ROM from another (same model) router. Boot up & you can change the config. register & recover/change the IOS enable password.
-OR-
2) If you know the Read/Write community string, use a tool like "Config Uploader" by Solarwinds to upload a new config. to the router.
Of course this won't help you to re-enable ROMMON.
What I actually did was to get Cisco to send me a new set of boot PROMs for the router - but I don't know if they'll still do that.
There are two ways that I know of to get around this:
1) Pull the boot ROM (PROM) & replace it with the boot ROM from another (same model) router. Boot up & you can change the config. register & recover/change the IOS enable password.
-OR-
2) If you know the Read/Write community string, use a tool like "Config Uploader" by Solarwinds to upload a new config. to the router.
Of course this won't help you to re-enable ROMMON.
What I actually did was to get Cisco to send me a new set of boot PROMs for the router - but I don't know if they'll still do that.
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