Those are the prerequisites for using the vagrant file definitions
Install plug-ins for Vagrant:
$ vagrant plugin install vagrant-cachier $ vagrant plugin install vagrant-vbguest
On Linux hosts, you can enable instances to access external networks such as the Internet by enabling IP forwarding and configuring SNAT from the IP address range of the provider network interface (typically vboxnet1) on the host to the external network interface on the host. For example, if the
eth0network interface on the host provides external network connectivity:
# sysctl -w net.ipv4.ip_forward=1 # sysctl -p # iptables -t nat -A POSTROUTING -s 10.10.0.0/16 -o eth0 -j MASQUERADE
Note: These commands do not persist after rebooting the host.