FreeBSD 11.1-BETA2 VirtualBox bridged network doesn't work

[Maurizio Vairani]

Upgrading from
# uname -a
FreeBSD clover-nas3 11.0-RELEASE-p9 FreeBSD 11.0-RELEASE-p9 #0: Tue Apr 
11 08:48:40 UTC 2017 
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
# freebsd-version -ku
11.0-RELEASE-p9
11.0-RELEASE-p10
with the latest packages to FreeBSD 11.1-BETA2, with the latest 
packages, the VirtualBox bridged network doesn't work.

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Regards
Maurizio