[router] dmz enable/disable

в консоли

# delete dmz
uci del firewall.dmz
uci commit


# set dmz
uci del firewall.dmz
uci commit
uci set firewall.dmz='dmz'
uci set firewall.dmz.from='wan'
uci set firewall.dmz.to_ip='192.168.6.203'
uci commit