Network configuration

[t.desmet]

Hi, i got some questions about the network configuration of Proxmox.

I have a public static IP set for the proxmox server example: 123.123.123.200
I also have an IPv6 range available for free for all servers 2A02:5940:1210:2::/64
Currently the VM's cannot access the internet somehow. And have it's static IPv6. Some VM's can order a public static IPv4 addition from WHMCS.
How do it need to configure my network and vm's so it can at least access the internet without it's own public static ipv4?

Proxmox version: 6.3-3
VM Type: KVM

Proxmox host: /etc/network/interfaces

auto lo
iface lo inet loopback

iface eno1 inet manual

iface eno2 inet manual

auto bond0
iface bond0 inet manual
      bond-slaves eno1 eno2
      bond-miimon 100
      bond-mode 802.3ad
      bond-xmit-hash-policy layer2+3

auto vmbr0
iface vmbr0 inet static
        address 123.123.123.200
        netmask 255.255.255.0
        gateway 123.123.123.1
        bridge-ports bond0
        bridge-stp off
        bridge-fd 0

Thanks in advance for responding.