Stuff

auto tap0
iface tap0 inet static
        post-up chmod g+rw /dev/net/tun && chown root:vboxusers /dev/net/tun
        tunctl_user un_user_propriétaire
        address 192.168.10.1
        netmask 255.255.255.0

 echo "+ Autorise l'IP masquerading de $VIR_NETWORK -> $WAN_NETWORK"
iptables -t filter -A FORWARD -i $VIR_INTERFACE -o $WAN_INTERFACE -s $VIR_    NETWORK -d $WAN_NETWORK -p all -m state --state ! INVALID           -j ACCEP    T
iptables -t filter -A FORWARD -i $WAN_INTERFACE -o $VIR_INTERFACE -s $WAN_    NETWORK -d $VIR_NETWORK -p all -m state --state ESTABLISHED,RELATED -j ACCEP    T

iptables -t nat    -A POSTROUTING               -o $WAN_INTERFACE -s $VIR_    NETWORK -d $WAN_NETWORK -p all -j MASQUERADE

iptables -t nat    -A POSTROUTING               -o $WAN_INTERFACE -s $LAN_    NETWORK -d $WAN_NETWORK -p all -j MASQUERADE

echo 1 > /proc/sys/net/ipv4/ip_forward