echo "1" > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 192.168.0.0/24  -d 0.0.0.0 -j MASQUERADE
echo "1" > /proc/sys/net/ipv4/ip_forward
modprobe iptable_nat
modprobe ip_conntrack
modprobe ip_conntrack_ftp
modprobe ip_tables
modprobe ipt_unclean
modprobe ipt_limit
modprobe ipt_LOG
modprobe ipt_REJECT
iptables -F
iptables -t nat -F
iptables -P FORWARD DROP
iptables -A FORWARD -d 0/0 -s 192.168.0.72/24 -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.0.0/24  -d 0.0.0.0 -j MASQUERADE
iptables -A FORWARD -s 0/0 -d 192.168.0.0/24 -mstate \
                   --state ESTABLISHED,RELATED -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 \
                                       -d 0/0 -j MASQUERADE