Simple NAT between wlan and lan

#delete and flush
iptables --flush
iptables --table nat --flush
iptables --delete-chain
#delete all chains
iptables --table nat delete-chain
#forwarding and masquearading
iptables --table nat --append POSTROUTING --out-interface wlan0 MASQUERADE
iptables --append FORWARD --in-interface eth0 -j ACCEPT
#packet forwarding enable
echo 1 > /proc/sys/net/ipv4/ip_forward