#! /bin/sh
### BEGIN INIT INFO
# Provides:          startvpn
# Required-Start:
# Required-Stop:
# Default-Start:      2
# Default-Stop:
# Short-Description: Connect to VPN Server
# Description:
### END INIT INFO

#Tun0 - Connect to SITE A
openvpn --remote [INSERT_PUBLIC_IP_FOR_REMOTE_SITE_HERE] --port 5000 --dev tun0 --ifconfig 10.99.0.2 10.99.0.1 --verb 1 --secret /etc/openvpn/tun0.key --fragment 1400 --mssfix 1400 --tun-mtu 1450 &
sleep 30

#set up a route to the remote LAN subnet for this tunnel
ip route add 192.168.6.0/24 via 10.99.0.2

#set up a ping to keep NAT alive, one ping sent once every 60 seconds, otherwise NAT translations get deleted and the tunnel won't pass traffic when needed
ping [IP_OF_SERVER] -i 60 &

#enable packet forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward