In VirtualBox it is possible to configure several different types of interfaces for VMs , one of which is the 'host-only' adapter. This adapter type allows the establishment of a network layer-3 connection exclusively between the host-system and the VM. When a VM with such an interface is started, VirtualBox puts up a new virtual interface on the host-system, called 'vboxnet0' and adds an IP address as configured. For this VirtualBox expects /sbin/ifconfig, which was recently moved by gentoo-devs to /bin/ifconfig. When /sbin/ifconfig is not present, VirtualBox seems to silently ignore this error and boot the machine without ifup'ing the interface on the host-side. This leads to a broken host-only connection, as there is not receiving interface on the host-system. Quick-fix: # ln -s /bin/ifconfig /sbin/ifconfig # and then reboot VMs with host-only adapter!
See bug #455902#c7 for a reason why we cannot fix this. Please report this problem to upstream. maybe they can be convinced to fix this in their binary packages.
I have just opened this ticket upstream: https://www.virtualbox.org/ticket/12713
(In reply to Fabio Rossi from comment #2) > I have just opened this ticket upstream: > > https://www.virtualbox.org/ticket/12713 Thank you very much :)
Fixed in virtualbox-bin-4.3.8
