Setting up PPP for linux
                              By: BlackIC

like it or not when you have linux and want internet connections you have to
set up Point to Point Protocol, sure you can goto a linux irc channel, and
spend hours getting flamed and probally not get the answer. So you can do
that ulcer inducing suggestion or take a little time to read this text.

First of all youll need the ppp-on and ppp-off, are pasted at the
end of this file. Just put them in /usr/sbin and chmod +x <filename>.

First edit these lines in the ppp-on file
TELEPHONE=    < phone number of isp or whatever  
ACCOUNT=      < login name 
PASSWORD=     < password    
LOCAL_IP=0.0.0.0  <    left alone  
REMOTE_IP=0.0.0.0   <   left alone
NETMASK=255.255.255.0 < left alone
  
its prett obvious as what you do once those are edited then save the file 
and type ppp-on to connect
and ppp-off to disconnect
thats about it there should not be anymore problems
here are ppp-on and ppp-off 
EOF
-------------------------------------------------------------------------------
ppp-on
-----------------------------CUT-HERE-----------------------------------------
#!/bin/sh
#
# Script to initiate a ppp connection. This is the first part of the
# pair of scripts. This is not a secure pair of scripts as the codes
# are visible with the 'ps' command.  However, it is simple.
#
# These are the parameters. Change as needed.
TELEPHONE=5555555       # The telephone number for the connection
ACCOUNT=login         # The account name for logon (as in 'George Burns')
PASSWORD=password         # The password for this account (and 'Gracie Allen')
LOCAL_IP=0.0.0.0        # Local IP address if known. Dynamic = 0.0.0.0
REMOTE_IP=0.0.0.0       # Remote IP address if desired. Normally 0.0.0.0
NETMASK=255.255.255.0   # The proper netmask if needed
#
# Export them so that they will be available at 'ppp-on-dialer' time.
export TELEPHONE ACCOUNT PASSWORD
#
# This is the location of the script which dials the phone and logs
# in.  Please use the absolute file name as the $PATH variable is not
# used on the connect option.  (To do so on a 'root' account would be
# a security hole so don't ask.)
#
DIALER_SCRIPT=/etc/ppp/ppp-on-dialer
#
# Initiate the connection
#
# I put most of the common options on this command. Please, don't
# forget the 'lock' option or some programs such as mgetty will not
# work. The asyncmap and escape will permit the PPP link to work with
# a telnet or rlogin connection. You are welcome to make any changes
# as desired. Don't use the 'defaultroute' option if you currently
# have a default route to an ethernet gateway.
#
exec /usr/sbin/pppd debug lock modem crtscts /dev/ttyS0 38400 \
        asyncmap 20A0000 escape FF kdebug 0 $LOCAL_IP:$REMOTE_IP \
        noipdefault netmask $NETMASK defaultroute connect $DIALER_SCRIPT
-----------------------------END----------------------------------------
ppp-off
-----------------------------CUT-HERE-----------------------------------
#!/bin/sh
######################################################################
#
# Determine the device to be terminated.
#
if [ "$1" = "" ]; then
        DEVICE=ppp0
else
        DEVICE=$1
fi

######################################################################
#
# If the ppp0 pid file is present then the program is running. Stop it.
if [ -r /var/run/$DEVICE.pid ]; then
        kill -INT at /var/run/$DEVICE.pid
#
# If the kill did not work then there is no process running for this
# pid. It may also mean that the lock file will be left. You may wish
# to delete the lock file at the same time.
        if [ ! "$?" = "0" ]; then
                rm -f /var/run/$DEVICE.pid
                echo "ERROR: Removed stale pid file"
                exit 1
        fi
#
# Success. Let pppd clean up its own junk.
        echo "PPP link to $DEVICE terminated."
        exit 0
fi
#
# The ppp process is not running for ppp0
echo "ERROR: PPP link is not active on $DEVICE"
exit 1

-------------------------------END--------------------------------------------
EOF