#!/bin/bash

MYIP=AAA.BBB.CCC.DDD

VPI=8
VCI=36

MYGATEWAY=`echo $MYIP | sed -e 's/[0-9]\+$/254/'`

ps -e | grep atmarpd > /dev/null
stat_daemon=$?

ifconfig -a | grep atm0 > /dev/null
stat_interface=$?

ifconfig | grep atm0 > /dev/null
interface_up=$?

case "$1" in
start)

   if [ $stat_daemon -ne 0 ] ; then

      atmarpd -b 2> /dev/null
      sleep 2

   fi

   if [ $stat_interface -eq 0 ] ; then
   
      ifconfig atm0 up

   else

      atmarp -c atm0
      ifconfig atm0 $MYIP netmask 255.255.255.0 mtu 1500 up

   fi

   atmarp -s $MYGATEWAY $VPI.$VCI null 2> /dev/null
   route del default 2> /dev/null
   route add default gw $MYGATEWAY
   echo -e "\nconnecté\n"
   exit 0
;;

stop)

   if [ $interface_up -eq 0 ] ; then

      if [ $stat_daemon -eq 0 ] ; then atmarp -d $MYGATEWAY ; fi
      
      route del default 2> /dev/null
      ifconfig atm0 down
  
   fi
   
   echo -e "\ndéconnecté\n"
   exit 0
;;
  
*)
   echo -e "\nUsage: sudo freedeg [start|stop]\n"
   exit 1
;;
esac