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Article: 25704 of comp.os.linux.admin
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From: vc0328@tpts1.seed.net.tw (Vincent Chen)
Newsgroups: comp.os.linux.admin,comp.os.linux.help
Subject: Re: Q: Setting up SLIP --
Date: Mon, 6 Feb 1995 03:00:14 CST
Organization: Vincent Research.
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Message-ID: <vc0328.26.0013DAEC@tpts1.seed.net.tw>
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>OK: I got Linux setup, but how do I set up SLIP?

  There are several files must be modified.

1) add your ip address & FQDN to /etc/hosts

    ex:
    <your ip addr> <F.Q.D.N.> <alias>

2) add your nameservers to /etc/resolv.conf
   ps: multiple nameservers are allowed.

    ex:
    <your domainname>
    nameserver xxx.xxx.xxx.xxx
    nameserver xxx.xxx.xxx.xxx

3) create your dip script

    ex:

NOTE: replace xxxxx with your setting

----- cut here -----

#
# xxx.dip       Dialup IP connection support script. (dynamic)
#
# Version:      xxx.dip 1.0     08/12/94
#
# Author:       Vincent Chen
#
# Server:       xxxxx
#
# Features:     Auto redial when busy
#               Two phone numbers support
#

main:

  #
  # Set serial port and speed.
  #
  port cua1
  speed 57600

  #
  # Should match the assignment from your administrator
  #
  netmask 255.255.255.0

  #
  # Send initializing string to modem and print banner
  #
  send AT&FL1S0=0S7=25\r
  wait OK 3
  if $errlvl != 0 goto modemerr
  print DIP script for xxxxxx server by Vincent Chen 08/12/1994
  print -------------------------------------------------------
  print .............. AutoDial procedure started .............
  print ................ Press Ctrl-C to abort ................

dialsvr:

  send +++\r
  wait OK 3
  send ATH0\r
  wait OK 3
  print ................... Trying xxx-xxxx ...................
  send ATDTxxx-xxxx\r
  if $errlvl != 0 goto error
  wait BUSY 15
  if $errlvl == 0 goto next
  wait CONNECT 15
  if $errlvl != 0 goto next
  goto login

next:

  send +++\r
  wait OK 3
  send ATH0\r
  wait OK 3
  print ................... Trying xxx-xxxx ...................
  send ATDTxxx-xxxx\r
  if $errlvl != 0 goto error
  wait BUSY 15
  if $errlvl == 0 goto dialsvr
  wait CONNECT 15
  if $errlvl != 0 goto dialsvr
  goto login

#
# We are connected.  Login to the system.
#

login:

  #
  # "login:" is my system prompt, change it to yours
  #
  wait login: 30
  if $errlvl != 0 goto error
  #
  # Tell server our user ID
  #
  send xxxxxxx\r
  if $errlvl != 0 goto error
  #
  # My system don't need password for slip connection
  #
  #wait password: 10
  #if $errlvl != 0 goto error
  #
  # Tell server our password
  #
  #send xxxxx\r
  #if $errlvl != 0 goto error
  #
  # If you must enter shell and type extra commands to enter slip mode,
  # add your own chat procedure here.
  #
  # Catch the key word to confirm that IP string will show up shortly.
  #
  wait IP 5
  if $errlvl != 0 goto error
  #
  # Get our dynamic IP from strings that sent by server
  #
  get $local remote 3
  if $errlvl != 0 goto error
  #
  # Get server's IP from strings that sent by server
  #
  get $remote remote 3

  #
  # Set up the SLIP operating parameters.
  #
  get $mtu 1024

  #
  # Set Destination net/address as type 'default' (vice an address).
  # This is used by the 'route' command to set the kernel routing table.
  # Some machines seem to require this be done for SLIP to work properly.
  #
  default

#
# Give the connection report !
#

done:

  print Entering SLIP mode.
  print Dynamic IP assigned by host is $local
  print Remote host connected is $remote
  mode CSLIP
  goto exit

error:

  print SLIP connection failed.
  goto exit

modemerr:

  print Modem initializing failed.
  goto exit

exit:

-----  cut here  -----

4) ok, ready to go now

    type 'dip <full path of your own script>' to connect server

5) all tcp/ip applications available now.

Good luck.




      Vincent Chen
vc0328@tpts1.seed.net.tw
 Taipei, Taiwan, R.O.C.