split-vpn.sh

#! /usr/bin/env bash

if (( EUID != 0 )); then

  echo “Please run this command with sudo” 1>&2

  exit 1

fi

WIRELESS_INTERFACE=en0

VPN_INTERFACE=ipsec0

GATEWAY=$(netstat -nrf inet | grep default | grep $WIRELESS_INTERFACE | awk '{print $2}')

echo “Resetting routes with gateway => $GATEWAY”

echo

route -n delete default -ifscope $WIRELESS_INTERFACE

route -n delete -net default -interface $VPN_INTERFACE

route -n add -net default $GATEWAY

for subnet in 192.168.10 192.168.20 192.168.100

do

  route -n add -net $subnet -interface $VPN_INTERFACE

done