15.1. Enable networking
We disable networking by default because it starts an userland process, and we want to keep the number of userland processes to a minimum to make the system more understandable as explained at: Section 38.20.3, “Resource tradeoff guidelines”
To enable networking on Buildroot, simply run:
ifup -a
That command goes over all (-a) the interfaces in /etc/network/interfaces and brings them up.
Then test it with:
wget google.com cat index.html
Disable networking with:
ifdown -a
To enable networking by default after boot, use the methods documented at Run command at the end of BusyBox init.