#!/bin/bash
#
# /etc/ppp/ip-up.d/mivpnIPdown script
# version 0.2
#
# see https://www.mi.fu-berlin.de/w/Tec/ArtVpnPptpDebianEtch for the most current version
# 
PPP_IFACE="$1"
PPP_REMOTE="$5"
PPP_IPPARAM="$6"
PPTP_REMOTE=$(getent hosts vpn.mi.fu-berlin.de|awk '{print $1}')
OLDDEFAULT=$(ip route list |grep $PPTP_REMOTE | sed 's/.*via[\ \t]\([a-zA-Z0-9\.]*\).*/\1/')

if [ "mi-vpn" == "$PPP_IPPARAM" ] 
then
  ip route del $PPTP_REMOTE via $OLDDEFAULT
  ip route add default via $OLDDEFAULT
fi