Virtualbox: use host VPN

Configuration: Windows 7 host, Fedora guest
Configure a new NAT adapter in Virtualbox network settings.
Start the VPN on Windows.
Start the VM.

> cd /etc/sysconfig/network-scripts
> sudo vi ifcfg-eth1

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DEVICE=eth1 NM_CONTROLLED=no ONBOOT=yes BOOTPROTO=dhcp DNS1=8.8.8.8 DNS2=8.8.4.4 TYPE=Ethernet USERCTL=no PEERDNS=yes IPV6INIT=no

> sudo ifup eth1

Test connection to remote machine only available through the VPN

> ping engine1