Best practice - dual stack DNS?

[Roger Wiklund]

Hi.

I'm setting up a wireless guest network with dual stack.
Private IPv4 via DHCP and public IPv6 via SLAAC.

At first had the client first hop IPv6 routing on the WAN CPE using SLAAC
and DHCPv6 just for DNS.

I decided to move the client first hop IPv6 routing to the ASA firewall
instead, but it does not support DHCPv6.

So currently I only have IPv4 DNS and what works just fine. What's the best
practice for dual stack DNS? Should I bother with setting up DHCPv6 relay
etc?

Thanks!

/Roger
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