Paradize - Atari and more

STing Nullmodem Network HOWTO

This is a small HOWTO for connecting an Atari ST and an Atari Falcon to your network via STing, MIDI and Nullmodem.

It was original written and maintained by Alain Gaymard but the website is not available anymore.

Simon Sunnyboy used this without MIDI in the past (around 2006/2007) and it worked pretty good though not fast. Some tricks learned:

On the Linux end my script looks like this for Ubuntu 6.06LTS. (Take note it doesn't use ipfwadm anymore!):

pppd crtscts lock noauth /dev/ttyS0 57600 &
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sysctl -w net/ipv4/ip_forward

In my setup the PC has the IP and the Falcon

Alain Gaymard's text

I also have an Atari ST and a Falcon. They are connected to the PC like in the picture:


The three computer can have access to internet. Each computer can also run a Web server!
I use PPP on all machines and STinG on Atari. The last version of STinG [1.26] is a the following address: http://www.ettnet.se/~dlanor/sting/html/file.htm.

Configuration of the ST
Configuration of the Falcon
Configuration of the PC

Programs on the ST and configuration:

In the AUTO folder: STinG setup:

Programs on the Falcon and configuration:

In the AUTO folder: STinG setup:

The PC is running linux. Just type in:

pppd crtscts lock /dev/ttyS1 115200

add the route to the ST with the Falcon as a gateway
route add gw ppp0

and set up the Network Address Translation
ipfwadm -F -p deny
ipfwadm -F -a m -S -D

That's all you need to do!

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