/etc/network/interfacesauto vmbr0iface vmbr0 inet static address xx.xx.xx.xx/xx bridge-ports none bridge-stp off bridge-fd 0 post-up sysctl -w net.ipv4.forward=1 post-up iptables -A PREROUTING -t nat -i vmbr0 -p tcp --dport 443 -j DNAT --to-destination 10.10.1.1:1194 post-down iptables -D PREROUTING -t nat -i vmbr0 -p tcp --dport 443 -j DNAT --to-destination 10.10.1.1:1194iface vmbr0 inet6 static address xx:xx:xx:xx::x gateway xxxx::x broadcast xx.xx.xx.xx pointopoint xx.xx.xx.xx gateway xx.xx.xx.xx bridge-ports enp0s31f6 bridge-stp off bridge-fd 0 up route add -net xx.xx.xx.xx netmask xx.xx.xx.xx gw xx.xx.xx.xx dev enp0s31f6auto vmbr1iface vmbr1 inet static address 10.10.1.0/31 bridge-ports none bridge-stp off bridge-fd 0 post-up iptables -t nat -A POSTROUTING -s '10.10.1.1/31' -o vmbr0 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '10.10.1.1/31' -o vmbr0 -j MASQUERADE