# Loopback device:
auto lo
iface lo inet loopback
iface lo inet6 loopback

# device: eth0
allow-hotplug eth0
iface eth0 inet manual

# default bridge
auto vmbr0
iface vmbr0 inet static
  address 141.X.X.241
  netmask 255.255.255.255
  pointopoint 141.X.X.225
  gateway 141.X.X.225
  bridge_ports eth0
  bridge_stp off
  bridge_fd 1
  bridge_hello 2
  bridge_maxage 12

# NAT bridge
auto vmbr1
iface vmbr1 inet static
        address  10.0.0.1
        netmask  255.255.255.0
        bridge_ports none
        bridge_stp off
        bridge_fd 0

    post-up iptables -t nat -A POSTROUTING -s '10.0.0.0/24' -o vmbr0 -j MASQUERADE
    post-down iptables -t nat -D POSTROUTING -s '10.0.0.0/24' -o vmbr0 -j MASQUERADE
    post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp --dport 1234 -j DNAT --to 10.0.0.2:22
    post-down iptables -t nat -D PREROUTING -i vmbr0 -p tcp --dport 1234 -j DNAT --to 10.0.0.2:22

# ROUTED bridge
auto vmbr2
iface vmbr2 inet static
	address 141.X.X.241
	netmask 255.255.255.255
	bridge_ports none
	bridge_stp off
	bridge_fd 0

    up route add -host 131.X.X.16 dev vmbr2
    up route add -host 131.X.X.17 dev vmbr2

# IPv6
iface vmbr0 inet6 static
  address 2a01:X:X:X::2
  netmask 128
  gateway fe80::1

iface vmbr1 inet6 static
  address 2a01:X:X:X:100::2
  netmask 100

iface vmbr2 inet6 static
  address 2a01:X:X:X:200::2
  netmask 100