dynamic slip connection - my dip script

dynamic slip connection - my dip script

Post by Chris Patters » Thu, 28 Sep 1995 04:00:00

Hi all,
        As of late, I have noticed that there have been several posts relating
to problems with writing scripts for dip for connection to systems which
supply a dynamic ip number.  As I have just written such a script for my own
use. (well actually I hacked the script example from the Network
Administrators Guide - a fantastic document and I highly recomended it for any
new linux user).

Of course as part and parcel of the script is the login system as supplied by
the provider (Which I have taken from my pc - so the speed settings are

Incidently, suggestons for improving this script would be gratfully accepted.



-------------- Providers Screen ----------------

Annex Command Line Interpreter   *   Copyright 1991 Xylogics, Inc.

Checking authorization, Please wait...
Annex username: "My Username"
Annex password:

Permission granted
*                Welcome to the ITS Terminal Server.                      *
*       ***** This service is for ANU Staff and students only ****        *
*                                                                         *
*    WARNING:  It is a criminal offence to:                               *
*         i.  Obtain access to data without authority                     *
*        ii.  Damage, delete, alter or insert data without authority      *
*                                                                         *
*      Please select host or required command at the prompt               *
*                                                                         *
*  0   Connect to huxley                                   *
*         1   Connect to leonard                                          *
*         2   Connect to library                                          *
*         3   Connect to other ANU hosts via Telnet -                     *
*                type <open 'hostname'> at the telnet prompt              *
*                eg: telnet> open leonard                                 *
*         4   Exit from the Terminal Server                               *
*         5   Change password for terminal servers                        *
*         6   Brief documentation of dial-in service                      *
* Type 'help' at the prompt for additional commands                       *
*                                                                         *
* Please report any difficulties in using this service to the             *


IMPORTANT! After 9 October 1995 the service on 1234567 will require a
           dial-in account username and password. If you do not already
           have a dial-in account, application forms are available from
           the ITS Help Desk or from the Campus Information System at

csctsa 29: slip

Switching to SLIP.
Annex address is xxx.xxx.xxx.xxx.  Your address is yyy.yyy.yyy.yyy.
---------------------- Cut Here --------------------------

and a copy of my dip script

---------------------- anu.dip -------------------------
# dip script for connecting to the ANU Terminal Server

# Setup debugging variables
#echo on

# Setting local name and address
get $local patto.anu.edu.au

# Modem setup strings

# Set the port to COM1
port cua0
# This modem is a 9600 but lets let it choose it's own speed
speed 9600
# Modem type
modem HAYES
# reset the modem and tty
# flush out the modem response

# Prepare for Dialing
send ATQ0V1E1X1\r
wait OK 10
if $errlvl != 0 goto error
dial "phone number"
wait username 10
if $errlvl != 0 goto error

# OK, we should be connected now.
if $errlvl != 0 goto error
send "My Username"\n
wait password 10
if $errlvl != 0 goto error
send "My Password"\n
wait scts 30
if $errlvl != 0 goto error

# We should now be logged in - time to fire up SLIP
send slip\n
wait SLIP 10
if $errlvl != 0 goto error
get $rmtip remote
get $locip remote

print CONNECTED to $rmtip with address $locip

# Make this link our default route
# Time to go into slip mode ourselves
mode SLIP

# Fall through in case of errors

print SLIP to $remote failed
----------------------------- Cut Here ----------------------

                  Chris Patterson | The Australian National University

             Anonymous Darts Area | ftp://coombs.anu.edu.au/pub/alt.sport.darts


1. dip script for slip/ppp connection with dynamic IP address

I'm having trouble writing a dip script and works for a dynamically
allocated IP address. The major thing giving me trouble is
intercepting the IP address and then figuring out what to do with
it. Could someone point me to relevant documentation for doing this?
Also, sample dip scripts that deal with dynamically allocated IP
addresses would also be helpful. Thanks much.

Chuck Irvine
Serior Member of Technical Staff
Systems & Networks, Inc.                                FAX (913) 841-1345
1310 Wakarusa Dr., Suite A                              (913) 841-1283

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