Serial Port command to Cisco 678

David Bandel david.bandel
Mon Dec 6 12:42:34 PST 2004


On Mon, 6 Dec 2004 11:09:11 -0800, Condon Thomas A KPWA
<tcondon at kpt.nuwc.navy.mil> wrote:
> 
> Folks,
> 
> I've managed to forget the password for my Cisco 678 DSL Modem.  I've found
> instructions on how to reset it to the defaults (which will let me in to
> change it again), but I'm having troubles accessing it through the serial
> port command interface (the only way to do this reset).
> 
> I've tried with a desktop running SUSE 9.1 and a laptop running SUSE 9.0.
> In both cases I'm trying to use Minicom to connect via the serial interface.
> In both cases I tried /dev/ttyS0, /dev/ttyS1 & /dev/ttyS2 with no results.
> I've tried 9600, 19.2K & 38.4K speeds (one manual says to use 9600, another
> says to use 38400) on each port.  I just don't seem to get a result from the
> DSL Modem.  All of the manuals call for 8N1, with no flow control, so that
> is what I've used.
> 
> Am I missing something?  Using the wrong tools?

Well, I can't help you with minicom, but kermit, yes:

If you have ckermit installed, just call up kermit:
at the kermit prompt, you'll need to issue the following commands:
set line /dev/ttyS0
set carrier-watch off
connect

a couple of Enters should allow kermit to autobaud and connect.

Now this is all assuming:

you haven't disabled your serial ports in BIOS
you have loaded the serial module (in 2.6.x the module has been
renamed to generic_serial)

you may also have to run the setserial command to activate the serial
ports correctly.


Ciao,

David A. Bandel
-- 
Focus on the dream, not the competition.
            - Nemesis Air Racing Team motto


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