Is my router configuration correct?

Installing and Using OpenWrt Network and Wireless Configuration
3

This is the WAN zone

WAN ZONE 
config zone
	option name 'wan'
	option output 'ACCEPT'
	option masq '1'
	option mtu_fix '1'
	option network 'wan wan6'
	option input 'DROP'
	option forward 'DROP'

I was worried about the gateway, I was reading your answer here too Help needed understanding Masquerading option .
Like "Andy1", I'm confused aswell about the "Masquerading option", are my routes in the main router ok?. I ask this because I have "drop" input in almost all interfaces, and I access to the router by connecting my eth cable in the eth4 of the main router.