Used wrong config-register and now the router does not boot! Cisco Forum FAQBits per second: 1200
Data bits: 8
Parity: None
Stop Bits: 1
Flow control: None
Once this is open, powercycle the router and press the spacebar for roughly 10 seconds (press and release). If you are able to see the rommon prompt, change the register back to normal by typing:
rommon>confreg 0x2102
rommon>reset
if you are not able to see anything on the screen, close the window and open a new one with these settings:
Bits per second: 9600
Data bits: 8
Parity: None
Stop Bits: 1
Flow control: None
And you should now see the rommon> prompt. Change the register from there and the router should be back in normal mode.
Side Note:
If you know the current setting of your router's config register value is, you can use the Config Register calculator to find out how the router is configured when it boots. You can download the calculator from this site.
Derived from this thread.
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by Covenant edited by aryoba
last modified: 2008-01-22 11:52:48