[lug] Dialup modems and Linux

[D. Stimits]

Justin-lists wrote:
> Yes, the first thing I did was try to get minicom working. It
> appeared
to work, but ultimately failed. I set the config in minicom to
/dev/modem, which at the time was linked to /dev/ttyS1. Modem settings
were 115200, 8n1, etc...I made an entry in the dial pad or whatever it
is for my ISP. I set minicom to dial, got dialtone, heard the number
being entered, got modem connection sounds and all that good stuff.
Immediatly after the modem tones stopped, I could hear the modem hang
up, you know that little "click" sound? But minicom reported nothing in
the window it was being run in. It just timed out and would try to
redial. I cannot remember exactly what the syslog showed for an error,
I'll have to reproduce it tonight. I recall having this same behavior
when I used dialup years ago, but I can't remember what I did to get
things working.
> 
> I guess that is the best place to begin things tonight, if I can get
around to it, hehe. Atleast the isa modem semi works with minicom...


As Wayde mentioned, for this particular modem, it sounds more and more 
like authentication. There may be something else in the way, perhaps a 
serial port setting meant it couldn't authenticate right even if it had 
the settings...but most likely I would say that it was a software 
response such as password that was missing in the initial exchange. You 
were very close to getting it working at that point.

On thing you may find useful to post, in addition to all of the stuff 
from earlier about /proc/pci and lspci, is the output of "setserial -a 
/dev/modem" (or any device you are curious about that is a serial 
port...this "-a" by itself means it prints all of the current settings 
for viewing).

D. Stimits, stimits AT attbi.com


> Justin
> 
> --
> glow at jackmoves.com
> 
> 
> ---------- Original Message -----------
> From: "J. Wayde Allen" <wallen at lug.boulder.co.us>
> To: lug at lug.boulder.co.us
> Sent: Wed, 4 Sep 2002 13:24:54 -0600 (MDT)
> Subject: Re: [lug] Dialup modems and Linux
> 
> 
>>On Wed, 4 Sep 2002, Justin-lists wrote:
>>
>>
>>>Hmm, I'll check the /proc/pci tonight as well as try some of the other
>>>tools. I will also try the other ttyS* ports. Thanks for all the help.
>>
>>I skimmed your original post pretty fast so don't remember what all you
>>have done.  I think you said that you tried something like minicom 
>>and that the modem dialed and connected?  This is a place I like to 
>>start just to verify that the modem system can control the modem and 
>>connect to the server.  It also lets you see what the modem server 
>>types back to you.  This way you can verify that the connection is 
>>made, whether or not it is noisy and/or error prone, and what should 
>>go into the chat script.
>>
>>(Personally, I think that the growing reliance on configuration 
>>wizards is starting to make Linux a bit harder rather than easier to 
>>use.  It is a double edged sword.)
>>
>>- Wayde
>>  (wallen at lug.boulder.co.us)
>>
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> ------- End of Original Message -------
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