kermit.columbia.edu/kermit.columbia.edu.tar/kermit.columbia.edu/newsgroups/misc.20000824-20010305/[e-mail] _Wed Oct 4 18:39:13 2000.msg

Internet Message Format | 2001-03-05 | 3KB

Return-Path: <[e-mail]>
Received: from watsun.cc.columbia.edu (watsun.cc.columbia.edu [128.59.39.2])
    by uhaligani.cc.columbia.edu (8.9.3/8.9.3) with ESMTP id SAA12297
    for <[e-mail]>; Wed, 4 Oct 2000 18:39:07 -0400 (EDT)
Received: from newsmaster.cc.columbia.edu (newsmaster.cc.columbia.edu [128.59.59.30])
    by watsun.cc.columbia.edu (8.8.5/8.8.5) with ESMTP id SAA22775
    for <[e-mail]>; Wed, 4 Oct 2000 18:39:07 -0400 (EDT)
Received: (from news@localhost)
    by newsmaster.cc.columbia.edu (8.9.3/8.9.3) id SAA26319
    for [e-mail]; Wed, 4 Oct 2000 18:30:01 -0400 (EDT)
X-Authentication-Warning: newsmaster.cc.columbia.edu: news set sender to <news> using -f
From: "Steve" <[e-mail]>
Subject: No Carrier
Message-ID: <YaOC5.4391$[e-mail]>
Organization: Giganews.Com - Premium News Outsourcing
Date: Wed, 04 Oct 2000 22:29:12 GMT
To: [e-mail]

I have software that runs on DOS computers that uses Kermit 3.15 to transfer
files to a server running a DOS application under Windows 95 also using
Kermit 3.15.  The DOS computer initiates everything, the connection, the
file transfers, etc.  The files are either transferred locally using a
serial cable or remotely over a modem.  Everything works fine.  We are
trying to switch from 3.15 on the server to K95 to allow multiple transfers
on the same server at a time and have created the server program using VB.
It seems to work fine except over a modem.  After the DOS computer calls in
and connects, the first thing it does is issue a FIN to reset the server in
case the previous transfer did not go to completion.  In the K95 version
over a modem, I always get a no carrier on the DOS computer immediately
after the FIN as the modem on the server side appears to drop the
connection.  I can tell the server did get the FIN and the DOS computer
should pause for a couple of seconds before issuing the next command.

We are using a shell command to call K95 that looks like:

For the modem file transfer the .ini file looks like:
set carrier off
set port 1
set speed 9600
set incomplete discard
set send packet 94
set retry 60
set flow xon/xoff
set handshake none
set duplex full
output AT s0=1\13
output AT s37=9\13
server
exit

The dial string we use on the DOS computer side is:
output AT&F&C0&D1s37=9N0DT [phone number]\13

Any ideas on why I am dropping the line?  Any suggestions on better settings
on either the server or DOS side?

Thanks,
Steve