Closing this thread with reference to bug that Emmanuel fixed:
On 29/09/16 23:33, Emmanuel Kasper wrote: > I've pushed a new box with version 8.6.1 who should fix the bug ( I > tested it in a Virtualbox 5.0.* env and the network works properly) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838999
