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8.4: I get a message "could not open serial device unit 0" when I runAmiTCP after I connect to my SLIP server. I tried quitting Term but myconnection to my server is terminated. a) Why is this?, b) How can I fixit? and c) How do I stay online? |
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This article is from the AmiTCP/IP FAQ, by Mike Meyer with numerous contributions by others.
a) There are many reasons for this problem. The most common is that the
serial device in use by another program, for example your comms package.
(Term, Terminus etc). If you are using a terminal package to dial into
your TCP/IP server this will give this error. And your modem is not set to
ignore DTR, so when you quit term the modem hangs up the phone, thus
ending your Connection.
b) There are many solutions to avoid this problem. I am going to suggest
2. The first is to use the Dial in arexx script that in on Aminet, this
automates the entire connection process, Arexx is used to dial up your
Server enter your account details and startup AmiTCP when it has connected
and logged in. The script is very flexible and also handles Dynamic IP
assign, you may need to modify the script depending on your setup, however
this is a very straightforward process.
The script is available from Aminet.
<ftp://aminet/comm/net/amitcp_dial10.lha>
Also there is another dialer program caller dialer. This program acts as a
go between serial.device and your PPP/SLIP driver. This program dials up
your hosts and logs the user in and then puts the SANA-II driver online.
This is available from Demon.
<ftp://ftp.leo.org/pub/comp/platforms/amiga/aminet/comm/net/>
A similar type program is gwcslip, by Graham Walter. This is a CSLIP
SANA-II driver which dials into your host. It works very much like to the
above program. This program is available from Demon
<ftp://ftp.demon.co.uk/pub/amiga/> in gwslip#?.lha. Look for the
revision number which is part of the filename.
c) The other is to set you modem to ignore DTR. For most modems, "AT&D0"
will work; if it doesn't, consult your modem manual. After doing that,
start your terminal program, dial into your server, login in as normal and
issue what commands you need to start up your TCP/IP connection (e.g.
sliplogin). When you have started up your serving program QUIT your
terminal program leaving the call running and THEN start AmiTCP by
executing AmiTCP:bin/startnet
NOTE: You must ensure that the baud rate your terminal program is using is
the same as the baud rate you have configured your SLIP/CSLIP/PPP driver
to use. Please, remember to set your baud rate to the configuration file
of the SANA-II device driver you are using. See the documentation inluded
with your SANA-II driver for more information on this file.
Continue to:
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