IPTables="/sbin/iptables"

### Local network
LAN_network="192.168/16"

###
### Activates IP Masquerade
###

$IPTables --table nat --append POSTROUTING \
	--source $LAN_network \
	--jump MASQUERADE &&

###
### Forwards packets from local network to Internet
###

$IPTables --table filter --append FORWARD \
	--source $LAN_network \
	--jump ACCEPT &&

$IPTables --table filter --append FORWARD \
	--destination $LAN_network \
	--match state --state ESTABLISHED,RELATED \
	--jump ACCEPT &&

###
### Accepts all communications from and to local network
###

$IPTables --table filter --append INPUT \
	--source $LAN_network
	--jump ACCEPT &&

$IPTables --table filter --append OUTPUT \
	--destination $LAN_network
	--jump ACCEPT &&