Sharing an internet connection over serial cable

[Cammy]

I received my Serial-to-USB adapters this week, so I'm going to test my A1200 and A600 going online over the null-modem cable using this USB adapter plugged into my Linux laptop. If I'm successful, hopefully the connection will be fast enough for me to run Dynamite online. Does anyone know if a game like this would work on a dialup-speed connection? I made a (crappy) video of Dynamite and AmiNetRadio running on the A1200 030, but it's using a PCMCIA Ethernet card, and YouTube cut the audio out, but you can see the game running here, for those who have no idea what Dynamite is - http://www.youtube.com/watch?v=j72NjheWP-A

[ferix]

Cammy, I'll help you to setup the linux host. Send me a PM

[Cammy]

Hi Ferix, could you talk me through it next time you catch me on MSN? I'm kind of excited to try this.

[ferix]

Ok, I'll try to catch you, but I didn't see you on MSN for a month...

[Cammy]

I'm sorry for resurrecting an old thread, but can anyone manage to compile the Unix version of Multilink for Linux? I have tried but it fails, and all I need is that executable file and I should be able to go online with my other Amigas without even needing to run AmiTCP or Miami.

The Unix source code is included in this package, with instructions in the MLink.guide file: http://aminet.net/package/comm/net/mlink132

[mongo]

I'm sorry for resurrecting an old thread, but can anyone manage to compile the Unix version of Multilink for Linux? I have tried but it fails, and all I need is that executable file and I should be able to go online with my other Amigas without even needing to run AmiTCP or Miami.

The Unix source code is included in this package, with instructions in the MLink.guide file: http://aminet.net/package/comm/net/mlink132

I've compiled it, but I currently have no way to test it to see if it works.

You can get it here : http://www.sendspace.com/file/b3a6wf

[Cammy]

Thank you for compiling this for me, Mongo! I haven't been able to get any of this thing working yet, I don't have any experience with terminal networking so it could be a while before I even know if the executable file works. I should have mentioned I'm using a 32bit PC for Linux in this case.

I wonder if anyone has ever had Multilink working through a null-modem cable before, or were they all using dialup modems, which is what the documentation assumes you're using.

[_ThEcRoW]

Got it sorted out, Cammy?. I will try that program when time permits, as i always wanted to connect to the net the amigas over serial. I only need a console shell, and serial is plenty of speed for that. Using a ssh connection over one of my unix/linux machines should get me on the net perfectly with lynx.
Thanks in advance!!!

[Cammy]

After much stuffing around, I discovered that the A1200's serial port I was using didn't work, so after switching to another Amiga and with lots of patient help from ferix, I have managed to get it working! That's right, I am browsing the web, chatting on IRC, and even directly controlling the PC and seeing its display on my Amiga, connected to the PC via a serial null-modem cable using Multilink. That means I don't even need a TCP/IP stack running, so it's got to be the best solution for low-end Amigas, and the speed is fine! I suppose it's comparable to a fast dialup modem on a good line, which was absolutely fine for the internet until broadband came along.

In fact, since you are using a PC as the host it's possible to browse the web using Opera or Chrome or Firefox through TwinVNC on a separate Intuition screen or in a window on Workbench, so the PC handles the huge websites with its connection and spits out the results to your Amiga quickly.

[gunni]

I use a slip setup with linux and my amiga 500, if anyone is interested here's how I do it...
linux side

  sudo modprobe slip
  sudo slattach -v -d -p slip -s 19200 /dev/ttyS0 &
  sudo ifconfig sl0 192.168.1.34 pointopoint 172.16.180.2 up
  sudo ifconfig sl0 mtu 576

  sudo iptables -A FORWARD -o eth0 -i sl0 -s 172.16.180.0/24 -m conntrack --ctstate NEW -j ACCEPT
  sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
  sudo iptables -A POSTROUTING -t nat -j MASQUERADE

  sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

amiga side

ip addr 172.16.180.2
  host amiga
  #
  mbox thirdparty on
  mbox attend on
  mbox sysop on
  mbox timer 1833
  #
  attach asy serial.device 0 slip sl0 32768 576 19200
  ifconfig sl0 netmask 0xffffffff broadcast 172.16.180.2
  #
  tcp timertype linear
  tcp trace off
  ip ttl 64

and I use this script for the connection

sudo modprobe slip
sudo slattach -v -d -p slip -s 19200 /dev/ttyUSB0 &
sudo ifconfig sl0 192.168.1.34 pointopoint 172.16.180.2 up
sudo ifconfig sl0 mtu 576

sudo iptables -A FORWARD -o eth1 -i sl0 -s 172.16.180.0/24 -m conntrack --ctstate NEW -j ACCEPT
sudo iptables -A FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
sudo iptables -A POSTROUTING -t nat -j MASQUERADE

sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward"

hope that's of help to someone!

[mutch]

While not as sophisticated as the above, a simple way is BBS Server, which allows access from the Amiga via null modem serial cable through a winpc connected to the internet. Its a modem emulator, easy to set up, and works well. You can connect to BBS's, check email, chat etc. Download it from a real C=64 BBS, link below. Instructions on pdf are there also.

http://www.jammingsignal.com/leif/bbs/

Cheers mutch.

[k4lmp]

Cammy, I am very interested in this for my A2000.  Can you post a kind of tutorial on how you did it?  I would very much appreciate it.  I already have my A2000 connected to a  Windows XP machine with a  null modem cable for file transfer.  I was also considering with a linux box, as my main PC is running linux.

Thanks,
Jeff

[AAACHIPSET]

The topic says it all really. I assume its possible to do, but I have no idea how to do it. Any advice would be greatly appreciated. Thanks. Oh yeah, incase it's necessary to know the machine that's connected to the net is a windows machine and it's OS3.9 that Im trying to get online via serial cable.

would  a a1200  connected  by parallel  port  to  laptop running xp  be able to access  internet  ..i can access  a usb  drive  like that  ..just curious if my 1200 could  go online  through a usb  connected  wireless  internet ..

[Nostalgiac]

I don't want to spoil the party... but the fact that an Ami can display a VNC shared display from a "today"'s PC/Mac/Linux... proofs what ? Surfing the internet over such a remoted display ?

hum
Tom UK

[desiv]

I don't want to spoil the party...

Why do I sense that there's a "but coming up???

but

I knew it.. Dang it..  So close..

the fact that an Ami can display a VNC shared display from a "today"'s PC/Mac/Linux... proofs what ?

Oh, I know that one, it's that...

Surfing the internet over such a remoted display ?

Dude!!!  You didn't even let me try to answer!!!!
Asking questions that you just answer yourself is definitely a way to spoil any party!!
I ain't inviting you, that's for sure..
I bet you do the same with pictionary...  
You draw a picture and then say "It's a dog"...
:biglaugh: :rofl: :banana:

desiv

[kickstart]

Solve issues using pm, messenger or whatever isnt usefull for users... its the problem of this forum, dont have tutorials for newbies or threads of interest about amiga tricks.