config basic
	option enable_http      '0'
	option enable_https     '0'
	option enable_ssh       '0'
	option enable_icmp      '0'
	option enable_ftp       '0'
	option enable_vpn       '1'
	option enable_pptp      '1'
	option enable_ext_vpn   '0'
	option ext_vpn_ip       '0.0.0.0'
	option enable_dmz       '0'
	option dmz_ip           '0.0.0.0'
