I manage to install Vagrant on my Ubuntu 14.04 LTS pc. How can I install vagrant box which I downloaded manually from a URL? I want to install Laravel Homestead but it will always fail because of my network connection. I want to download it from this link https://vagrantcloud.com/laravel/boxes/homestead/versions/11/providers/virtualbox.box
but I don't know what to do after I downloaded the box.