Hi, I have ~150 sites, of varying sizes, currnetly running ipv4 only. They are connected to a variety of ISP's. I have largely compelted implemetning Ipv6 in my public cloud, and i have an allocation of Ipv6 address's from APNIC, that i can use and not be reliant on upstream ISP's to provide them. I may or may not be able to have the upstream ISP listen to routing, for example some of my sites are Starlink connected, they wont' set up bgp for me, its use their address pool or nothing.
(a) Can i run ipv6 dual stack on vlans that are in the vpn. I'd address the ipv6 address' with my own address space.
(b) If i want to have local internet access from the sites, rather than centralised, can i use nat to use the service providers addressing?
(c) what else should i be thinking about?