Proxmox Hetzner 1 IPv4 and IPv6 /64 Subnet Interfaces Config

hetzner_proxmox_ipv4_and_ipv6_interfaces.txt

### Install net-tools for 'route' Command on Proxmox Host ###

apt install -y net-tools

### /etc/network/interfaces config ###

auto lo
iface lo inet loopback

iface enp34s0 inet manual

auto vmbr0
iface vmbr0 inet static
        address xxx.xxx.xxx.xxx/xx # Hetzner IPv4 Address
        gateway xxx.xxx.xxx.xxx # Hetzner IPv4 Gateway Address
        bridge-ports enp34s0
        bridge-stp off
        bridge-fd 0
        post-up echo 1 > /proc/sys/net/ipv4/ip_forward
        post-up iptables -t nat -A PREROUTING -i vmbr0 -p tcp -m multiport ! --dport 22,8006 -j DNAT --to 172.17.17.2
        post-up iptables -t nat -A PREROUTING -i vmbr0 -p udp -j DNAT --to 172.17.17.2

iface vmbr0 inet6 dhcp
        post-up echo 1 > /proc/sys/net/ipv6/conf/all/forwarding
        post-up route -A inet6 add default gw fe80::1 dev vmbr0
#Hetzner-WAN

auto vmbr1
iface vmbr1 inet static
        address 172.17.17.1/30
        bridge-ports none
        bridge-stp off
        bridge-fd 0
        post-up iptables -t nat -A POSTROUTING -s '172.17.17.0/30' -o vmbr0 -j MASQUERADE
        post-down iptables -t nat -D POSTROUTING -s '172.17.17.0/30' -o vmbr0 -j MASQUERADE

iface vmbr1 inet6 static
       address fdf4:26e0:eac5::1/48 # ULA IPv6 Address
       post-up route -A inet6 add 2a01:4f8:222:100c::/64 gw fdf4:26e0:eac5::2
#FW-WAN

auto vmbr1000
iface vmbr1000 inet manual
        bridge-ports none
        bridge-stp off
        bridge-fd 0
#VM-LAN