0X2102 is always ROM first & it is the Cisco default. With this
conf-register (or confreg in the modulars), you have ROM into RAM, RAM
pulling IOS from FLASH, & RAM then pulling the configs from NVRAM... Any
violent change (erased FLASH or check sum errors with the memory) & the
router falls into a BOOT or RMON mode (reguardless if you see 0x2102- it
aint getten that far :-) If you have a 2500, this is no big issue (full
boot code). If you have a modular router (2600, 3600, 4000, 7500, etc.,
etc.) a few curse words are acceptable, as you pick a nice short book like
War & Peace (because XMODEM is you fate). You see- with fixed interfaces
(like the 2500), you almost never loose them. With a modular router, very
often they default to an outa the box (no modules installed) state...
Please don't get but so consumed with the topic. I've never ever been asked
exam questions about these things & config-registers are really something
you learn when starting to break passwords or upgrading IOS "unsuccessfully"
:-0
Best of Luck !!!
Phil
----- Original Message -----
From: "Adam Hickey" <[EMAIL PROTECTED]>
To: "A.Strobel" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Monday, November 06, 2000 9:01 PM
Subject: Re: Boot Sequence
> It would be answer #1. I've seen it happen twice - once on a 4000, and
once
> on a 2611.
>
> When it can't find it in flash after a few tries, it defaults to ROM. (w/
> 0x2102)
>
> Adam Hickey
> [EMAIL PROTECTED]
>
>
> ----- Original Message -----
> From: "A.Strobel" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Monday, November 06, 2000 2:43 PM
> Subject: Boot Sequence
>
>
> > How in the world is it possible that there are so many contradicting
> answers
> > to a simple question:
> >
> > On a router: config register is 0x2102
> > there is no boot system command in the configuration
> > and there is no valid image file in the flash
> > what will happen?
> >
> > Simple question, right?
> >
> > Now watch the answers:
> >
> >
>
http://www.cisco.com/univercd/cc/td/doc/product/access/acs_fix/cis2500/2501/
> 2500ug/conf.htm
> > - xtocid288623
> > This link says:
> >
> > If after five attempts a valid Cisco IOS image is not found in Flash
> memory,
> > the router reverts to boot ROM mode.
> > So, the answer is [boot ROM]
> >
> >
> > Next: Cisco Net Academy, Sem.2 CBT Chapter 5, 5.1.2 or Cisco Networking
> > Academy Program: First Year Companion Guide, pg. 252. says:
> > - Try to boot from network and then from ROM
> > So, the answer is [Network, ROM]
> >
> >
> > Next: CCNA exam book by Wendell Odom (official cisco book)
> > says: will not proceed and terminate the boot process. You must do
> password
> > recovery to change the cofig register.
> >
> >
> > Can someone with a hard evidence ( apparently my evidences suck ) please
> tell
> > me which answer is the correct one?
> >
> > No guesses please.
> >
> > TIA,
> >
> > A. Strobel
> >
> >
> >
> >
> > ____________________________________________________________________
> > Get free email and a permanent address at http://www.amexmail.com/?A=1
> >
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