3.2.3.4 Easy SLIP setup using bsddip

bsddip is a port of the Linux 'Dial-up IP' program to BSD. It acts like a combination of pppd and chat, only that it then starts connections with the SLIP protocol. Also, the language to do the send/expect-chat is different then the one from chat.

You can get bsddip source from ftp://ftp.uni-regensburg.de/pub/NetBSD-Amiga/source/bsddip-1.02-src.tar.gz. Please see the included documentation there for further details on setting up the dial-in process for your provider.

Here are the necessary steps:

1. Prepare an appropriate dip-script: The following bsddip-script does about the same as the chat-script above: dial, log into a provider's modem-server, then start SLIP after getting the parameters (IP-numbers, netmask, ...) of the connection from the provider:

   	port /dev/tty00
   	speed 38400
   	reset
   	init ATX1M0
           # Insert your provider's number here
   	dial T09419431320
   
   	# Login
   	wait 15 username>
   	if $errlvl != 1 goto error
   	send MYUSERNAME\r
   
   	# Passwort
   	wait 10 assword>
   	if $errlvl != 1 goto error
   	send MYPASSWORD\r
   
   	# Choose SLIP (#21)
   	wait 10 or\suser\sarrow\skeys:
   	if $errlvl != 1 goto error
   	send 21\r
   
   	# Read & digest parameters
   	wait 10 YOURIP
   	if $errlvl != 1 goto error
   	get $locip remote 10
   	wait 10 DESTIP
   	if $errlvl != 1 goto error
   	get $rmtip remote 10
   	wait 10 NETMASK
   	if $errlvl != 1 goto error
   	get $netmask remote 10
   
   	get $mtu 296
   
   	default
           print Local IP ... $locip
           print Remote IP .. $rmtip
           print Netmask .... $netmask
           print MTU ........ $mtu
   
   	# Start SLIP
   	mode SLIP
   
   	goto end
   
   error:
   	print Error
   	goto end
   end:
   	print Exiting.
   	reset	
   

2. Start bsddip: If you have your dial-in information in the file `dip-script', then you just have to give bsddip a unique identifier, with which to identify the connection when closing it down (e.g. dipcon) via the -f-switch. Here is an example:

   bsddip -f dipcon dip-script
   

3. Do whatevery you want with the connection. There's no need to set any routes or configure any devices any more, this is all done by bsddip.
4. Disconnecting: To disconnect the SLIP-connection, just invoke bsddip with the -k-switch and the unique identifier that you gave it when starting up the connection (with the -f-switch):

   bsddip -k -f dipcon