source /etc/network/interfaces.d/*
auto lo
iface lo inet loopback
iface lo inet6 loopback
auto enp0s31f6
iface enp0s31f6 inet manual
auto vmbr0
iface vmbr0 inet static
address 95.216.67.174/26
gateway 95.216.67.129
bridge-ports enp0s31f6
bridge-stp off
bridge-fd 0
# up ip route add 95.216.67.153/32 dev vmbr0
auto vmbr1
iface vmbr1 inet manual
bridge-ports none
bridge-stp off
bridge-fd 0
#auto enp0s31f6
#iface enp0s31f6 inet static
# address 95.216.67.174/26
# gateway 95.216.67.129
# up route add -net 95.216.67.128 netmask 255.255.255.192 gw 95.216.67.129 dev enp0s31f6
# route 95.216.67.128/26 via 95.216.67.129
iface enp0s31f6 inet6 static
address 2a01:4f9:2b:3d9::2/64
gateway fe80::1
Adjust the file so it looks like above.
Create a new VM with two NIC, WAN on vmbr0, LAN on vmbr1.
On vmbr0, set the MAC address received from Hetzner:
