Well that wasn't nearly so bad as it could have been. The low life who
trashed my router, not to mention spoiled it for a lot of folks on these
lists, could have been more malicious. But he was deliberate. No doubt about
it.
So here is today's troubleshooting lesson - not really password recovery,
but configuration register setting recovery. I have done a bit of password
recovery practice, but not much.
1) cannot get into rommon mode. Not that I can tell. Gibberish of various
sorts on screen. Check to be sure my version of HyperTerminal sends the
correct control-break sequence, using another router. it does. I was sure I
had upgraded this particular version, but these days, when moving between so
many different computers at home and on the job, one never can tell.
2) Ok, with gibberish on the screen, what are some things to check? A quick
look through CCO confirms that baud rate is the only terminal setting that
can be changed in the register. Thank goodness one cannot also change the
data, stop, and parity.
3) OK. Brute force this thing. 9600 does not work. Let's work down the
scale, and see..... 4800 does not work. 1200 did not work earlier this
afternoon. But 2400 does work. I see clear text and I see I am in rommon
after all.
4) Check the current config register setting. E/s 2000002 [enter] reveals
the setting as 0x3942 you bad boy!
5) Use the o/r 0x2102 to reset the register and reload.
6) Rommon again! Hhmmm.........
7) OK, this time do a config mem ( I probably should have looked at this
last time anyway, but I did not )
8) Well, what did the yo-yo do here? Hostname rommon> interesting.
Certainly explains the console message I was seeing last time I reloaded.
Well, I don't have time to fool around any more. Erase start, reload, things
come up ok. I will copy my saved configuration later.
9) Too bad garbage-head inserted himself into this weekend. Someone was
doing a very interesting IPSec tunnel between my pod and theirs. I was
looking forward to seeing the result.
10) End result - learned a few more things which will be valuable in the
lab - troubleshooting portion.
Extra credit - with a configuration register setting of 0x3942, what was
happening at boot time?
Chuck
----------------------
I am Locutus, a CCIE Lab Proctor. Xx_Brain_dumps_xX are futile. Your life as
it has been is over ( if you hope to pass ) From this time forward, you will
study US!
( apologies to the folks at Star Trek TNG )
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