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000092_news@columbia.edu _Wed Oct 25 10:09:56 2000.msg
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From: fdc@columbia.edu (Frank da Cruz)
Subject: Re: kermit server via a dial line
Date: 25 Oct 2000 14:07:34 GMT
Organization: Columbia University
Message-ID: <8t6pf6$th$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <ChxJ5.2581$WP2.8726717@nnrp2.proxad.net>,
Jacques Brati�res <j.bratieres@free.fr> wrote:
: We have to set up a kermit server on a dial (remote) line with a USR modem
: on a Linux system
: (kermit vers:7.0.196). we initialize the server with the commands : set def
: ...,set esc ...,set line /dev/ttyS0,set speed 9600,server. This seems to be
: ok and the screen shows the transfer to come.
:
: On the same computer we run kermit with the commands: set def ...,set esc
: ...,set line/dev/ttyS1,set modem type usrobotics,set speed 9600,dial
: #########. The dialling occurs ,the connection is established and the prompt
: is returned
: to kermit. We then try to SEND something AND: on this side the kermit tries
: to send and resends
: the file and does not
: succeed. on the server side nothing happens on the screen.
:
: What have we forgotten
:
As was explained to you when you sent the same message to our email
support address, the problem is most likely a lack of effective flow
control between the serial devices and modems.
. You should put the SET MODEM TYPE command before the SET LINE command.
This ensures that Kermit sets the appropriate parameters for the serial
port when it opens it (flow control, treatment of carrier, etc).
. The side that executes the SERVER command needs to SET MODEM TYPE,
SET FLOW, and use the ANSWER command.
Also you have to make sure that the serial port speed on the server is the
same as the answering modem's serial port speed. The former must be locked;
otherwise the server will not be able to communicate with the answering modem.
For greater detail and examples, see the manual:
http://www.columbia.edu/kermit/ck60manual.html
- Frank