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000106_fdc@columbia.edu_Tue May 27 12:50:52 EDT 2003.msg
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Article: 14331 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!news.columbia.edu!news-not-for-mail
From: fdc@columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc
Subject: Re: server mode help needed
Date: 27 May 2003 12:50:44 -0400
Organization: Columbia University
Lines: 76
Message-ID: <bb0514$e4$1@watsol.cc.columbia.edu>
References: <20030527123809.04226.00000370@mb-m15.aol.com>
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In article <20030527123809.04226.00000370@mb-m15.aol.com>,
Greg180 <greg180@aol.com> wrote:
: Windows 98/Kermit 95 2.0.1
:
: The script show below has worked well for some time. For unknown reasons
: we have recently found our server machine in an unbroken cycle as
: displayed on the server display screen.
:
You never know, it could be a deliberate denial of service attack.
: Bad Sequence Number
: Check Sum Error
: the above appearing several time in sequence then followed by
: FAILURE: Too many retries
:
: This sequence continues until we Ctrl\C out of Kermit.
:
: I have been able to create this same scenario by starting the script and
: then placing a voice call to the host, and hanging up the voice call after
: the modem starts it handshake.
:
: During the duration, the line to the modem remains busy.
:
: I am reading the manual looking for a way to trap such errors, or a server
: setting which will force an exit from server mode.
:
: Any suggestions as to diagnostic work or an appropiate fix via script will
: be very much welcomed.
:
: echo ----------------------------\013
: echo - elcomm.ksx started -\013
: echo ----------------------------\013
: set speed 115200
:
You don't need to put \013 at the end of an ECHO string. However, when
a command ends with "-" but you don't want it to act as a continuation
character, you have to do something to prevent it. For ECHO the normal
thing is:
echo {-------}
or (in more recent Kermit versions):
echo "-------"
: ; modem change
: set flow rts/cts
: set modem speed-matching off
: set speed 14
:
"14" is short for 14400, which is a modem-to-modem speed, not a serial-port
speed. But "set speed" sets the serial port speed. Instead I think you
should be doing something like this:
set modem type xxx ; Specify the type of modem you have
set port com1
set flow rts/cts
set speed 57600
set modem speed-matching off ; <-- this is the default anyway
(Note: SET MODEM TYPE ? shows the modem types you can choose.)
Or, if you are using a TAPI device (Control Panel -> Modems name):
set port tapi
set flow rts/cts
set speed 57600
set modem speed-matching off
The rest looks OK.
I suspect you have a speed mismatch or a noisy connection. Anyway, try
the suggestions above, which would help in that case, and then get back
to kermit-support@columbia.edu if you continue to have trouble.
- Frank