Hetzner subnet configuration

auto enp35s0
iface enp35s0 inet static
  address MAIN_IP
  netmask 255.255.255.192
  gateway GW_IP
        post-up echo 1 > /proc/sys/net/ipv4/ip_forward
        post-up echo 1 > /proc/sys/net/ipv4/conf/eno1/proxy_arp

  up route add -net xxx.xxx.xxx.xxx netmask 255.255.255.192 gw xxx.xxx.xxx.xxx dev enp35s0

# SUBNET 1
auto vmbr0
iface vmbr0 inet static
address SUBNET0_IP0
# WILL Make SUBNET0_IP1 TO SUBNET0_IP6 available
netmask 255.255.255.248
bridge_ports none
bridge_stp off
bridge_fd 0
bridge_maxwait 0

# SUBNET 2
auto vmbr1
iface vmbr1 inet static
address SUBNET1_IP0
# WILL Make SUBNET1_IP1 TO SUBNET1_IP6 available
netmask 255.255.255.248
bridge_ports none
bridge_stp off
bridge_fd 0
bridge_maxwait 0