Config OpenWrt on WNDR3700v4

Http proxy for opkg:
Add following line in OPKG-Configuration via LuCI Web
option http_proxy http://172.24.61.252:8080/

Enable USB Storage
Install kmod-usb-storage
Install kmod-fs-ext4
Install kmod-fs-msdos
Install kmod-nls-utf8
Install block-mount