Redirect all traffic IPv6 (CIDR) to one VM (OPNsense)?

Hello,

I have an IPv4 Iptables script that redirect all traffic of my single public IPv4 to my OPNsense VM (local IPv4) that I'm trying to edit in order to do the same but with IPv6.
I'd like not only Proxmox to be IPv6 ready (it is already) but also my OPNsense VM and all other VM and CT that are behind IPv4NAT to be IPv6 ready (with public IPv6 if possible : dual stack private IPv4 because of NAT and public IPv6).
Here is the script I have, working for IPv4 and that I started to modify...

Read more