openwrt/package/firewall/files/firewall.config

config defaults
	option syn_flood	1
	option input		ACCEPT
	option output		ACCEPT 
	option forward		REJECT

config zone
	option name		lan
	option input	ACCEPT 
	option output	ACCEPT 
	option forward	REJECT

config zone
	option name		wan
	option input	REJECT
	option output	ACCEPT 
	option forward	REJECT
	option masq		1 
	option mtu_fix	1

config forwarding 
	option src      lan
	option dest     wan

# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
	option src		wan
	option proto		udp
	option dest_port	68
	option target		ACCEPT

# include a file with users custom iptables rules
config include
	option path /etc/firewall.user


### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
#	option src		lan
#	option src_ip	192.168.45.2
#	option dest		wan
#	option proto	tcp
#	option target	REJECT 

# block a specific mac on wan
#config rule
#	option dest		wan
#	option src_mac	00:11:22:33:44:66
#	option target	REJECT 

# block incoming ICMP traffic on a zone
#config rule
#	option src		lan
#	option proto	ICMP
#	option target	DROP

# port redirect port coming in on wan to lan
#config redirect
#	option src			wan
#	option src_dport	80
#	option dest			lan
#	option dest_ip		192.168.16.235
#	option dest_port	80 
#	option proto		tcp


### FULL CONFIG SECTIONS
#config rule
#	option src		lan
#	option src_ip	192.168.45.2
#	option src_mac	00:11:22:33:44:55
#	option src_port	80
#	option dest		wan
#	option dest_ip	194.25.2.129
#	option dest_port	120
#	option proto	tcp
#	option target	REJECT 

#config redirect
#	option src		lan
#	option src_ip	192.168.45.2
#	option src_mac	00:11:22:33:44:55
#	option src_port		1024
#	option src_dport	80
#	option dest_ip	194.25.2.129
#	option dest_port	120
#	option proto	tcp