You only need to set nothing and it should setup ipv6 on all downstream vlan interfaces.
For static prefix I'd you can set ip6hint per vlan interface.
For each vlan interface you need a stanza in the DHCP config file.
And regarding firewall, as with the default lan zone you might need to add new zones with the vlan interfaces and configure forwarding rules. That's it.
Do you have heared of IP addresses and that large institutions especially government institutions have their own blocks from the address space? Mapping these is kind of easy.
Just FYI. Almost every launcher that offers commercial services has such a user manual. I was involved in preparing one such manual. A collection of these manuals can be quite entertaining for 5 year olds. You should be able to easily find them from the websites of the respective companies or agencies.
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