code: func (n *hostOnlyNetwork) Save(vbox VBoxManager) error {
  	if err := n.SaveIPv4(vbox); err != nil {
  		return err
  	}
  
  	if n.DHCP {
  		vbox.vbm("hostonlyif", "ipconfig", n.Name, "--dhcp") // not implemented as of VirtualBox 4.3
  	}
  
  	return nil
  }
docs: // Save changes the configuration of the host-only network.