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Article #208

Re: modem fails under Linux...

#208
From: John Cochran
Date: Fri, 15 Jan 1999 00:00
55 lines
3281 bytes
In article <nhBn2.166$7u.530@nsw.nnrp.telstra.net>,
ochre small <reddwarf@octa4.net.au> wrote:
>
>Here's a puzzler...
>getting bizzare error messages from PPP....
>I am running a p166 system with an ISA PnP internal netcomm modem (rockwell
>chipset), and after much diddling seem to have gained recognition (I think)
>of the modem by Linux.
>I set up the PPP link as well as I could, but it doesn't connect.  I can't
>tell if it is dialling as my modem has no speaker, so I don't hear the
>dialling or handshaking.
>The following is an exerpt from my /var/log/messages when I try to initiate
>a connection under usernet.  HELP PLEASE!!
>
>Jan 14 21:41:17 reddwarf chat[1583]: abort on (NO DIALTONE)
>Jan 14 21:41:17 reddwarf chat[1583]: abort on (Invalid Login)
>Jan 14 21:41:17 reddwarf chat[1583]: abort on (Login incorrect)
>Jan 14 21:41:17 reddwarf chat[1583]: send (ATZ^M)
>Jan 14 21:41:17 reddwarf chat[1583]: expect (OK)
>Jan 14 21:42:02 reddwarf chat[1583]: alarm
>Jan 14 21:42:02 reddwarf pppd[1581]: Connect script failed
>Jan 14 21:42:02 reddwarf chat[1583]: Failed
>Jan 14 21:42:04 reddwarf pppd[1581]: Exit.
>Jan 14 21:42:09 reddwarf kernel: PPP: ppp line discipline successfully
>unregistered

You aren't even talking successfully to the modem. Here is  short
description of what the above lines mean...

abort on xxxx
   This is setting up various conditions that will cause the chat script
   to abort if they are detected.

send (ATZ^M)
   This is the computer sending to the modem the ATZ command which on
   Hayes compatable modems will cause them to be reset and reload their
   configuration from NVRAM. This command usually takes only a second or two.

expect(OK)
   The script will wait for the modem to send OK back to the computer
   (the ATZ command will do this when it's done)

alarm
   You have problems. The modem didn't send back to the computer OK, but
   instead did nothing. After sending the ATZ command, 45 seconds went by
   without the modem responding with OK. Not good.

The rest of the lines describes chat and PPP terminating.

I would suggest that you type to see if you can use the modem manually
via a comm program like seyon. When you can sucessfully communicate with
the modem, then try again with PPP.

Hope this helps,
John Cochran
Technical Details
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References: <nhBn2.166$7u.530@nsw.nnrp.telstra.net>

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From: jdc@fiawol.org (John Cochran)
Subject: Re: modem fails under Linux...
Date: 1999/01/15
Message-ID: <77npim$4ra$1@jdcochran.fiawol.org>
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References: <nhBn2.166$7u.530@nsw.nnrp.telstra.net>
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Newsgroups: alt.uu.comp.os.linux.questions,aus.computers.linux,comp.os.linux.hardware,comp.os.linux.setup,comp.protocols.ppp