Re: Atari St/Lantronix

Sniperstorm wrote:
Is there anyone out there who has gotten a network connection over the lantronix UDS 10 with the pc? Or able to connect to the internet. I was thinking I could upload files to a ftp server from my st but How do I get it to connect with the Lantronx box. Anyone?

I have used a Lantronix MSS1 to make network connections with an ST
or Falcon ... but that is a little easier than what you want to do, since the
MSS1 looks more like a terminal server over the serial port than a UDS-10
does. What you need to connect the ST to the Lantronix box is a modem
cable between the ST and the serial port of the Lantronix box and a
terminal emulator program for your ST ... if you really have an ST (so
that the serial port speed is limited to 19200 baud by hardware) and
you can use ST High video mode (640x400 mono), probably your best
bet for a terminal emulator is Uniterm; that is what I used on my ST. On
the Falcon I used the ConNect 97 terminal emulator, as it supports the
higher serial port rates available on the Falcon (but the latest stable
version of ConNect 97 was only released in German, I think).

Anyway, once you have the cable connected and the terminal emulation
software running, you can connect to the UDS box over the serial port and
configure its network parameters as described in the Lantronix manual;
you can then use the UDS Modem Mode to make a manual telnet connection
(to port 23) to some host on your local network that can accept telnet
connections. (It will probably have to be a host on your local network,
since it's not likely that you will find many hosts connected to the internet
with open telnet ports nowadays, for network security reasons). Once you
have a telnet connection to some host over the network, you can use the
built-in file transfer options in your terminal software, assuming that you
have software on the network host that understands the same file-transfer
protocol; for example, I have used the built-in Kermit file-transfer support
in Uniterm on an ST to transfer files to and from a VMS system over a
network link created with my MSS1, using C-Kermit to handle the file
transfer on the VMS end. If you can use Uniterm on the ST, Kermit is
probably the file transfer method that is most likely to work, as the Kermit
software is available for a large variety of systems and is thus the software
you are most likely to find (or be able to install) on your network host. If
you are trying to set up file transfer to a PC that you control, Kermit 95
includes the option to install it as a service, which allows you to accept
telnet connections on the PC directly to a Kermit service.

In any case, the basic procedure is to use some terminal-emulation software
on your ST to communicate with the serial port on your UDS-10; once you
can do that, you are limited to network clients supplied by the UDS-10, and
from a quick glance at the user's manual, that appears to limit you to telnet,
since the UDS-10 doesn't support FTP. That in turn means that for file
transfer, you are limited to file transfer protocols (old serial-line transfer
protocols, such as Xmodem, Zmodem or Kermit) that are supported by
your terminal emulator and for which you can find corresponding software
on a network host you can reach, which will probably be limited to hosts
on your local network.

Unfortunately, the UDS-10 doesn't provide you with a network stack (it
doesn't support SLIP over the serial port), so even if you have FTP client
software on your ST, you won't be able to use the UDS-10 to make a FTP
connection with it ... and I don't know of any ST terminal emulator that
supports FTP as a file-transfer protocol, so I think you'll end up having
to use Kermit or Zmodem to transfer files to some host on your local
network; but with luck you'll have an FTP client on that host with which
you can then transfer the file wherever you want to send it in a second
step.

Hope it helps,
Bill
.

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