Openwrt how to turn off the firewall?

Original link: http://www.cnblogs.com/dakewei/p/10784973.html

answer: 

　　1. stop the firewall service at startup

　　/etc/init.d/firewall disable

　　2. Turn off the firewall

　　/etc/init.d/firewall stop

Reproduced in: https: //www.cnblogs.com/dakewei/p/10784973.html