Ovpn-lan-to-lan-client-interfaces

auto vmbr4
iface vmbr4 inet static
        address 10.86.0.2/16
        bridge-ports none
        bridge-stp off
        pre-up openvpn --mktun --dev tap1
        post-up ip address add 0/0 dev tap1
        post-up ip link set tap1 up
        post-up ip link set tap1 promisc on
        bridge-ports tap1
        bridge-fd 0