I have my router set up to use ipv6 with SLAAC but not DHCPv6. Before upgrading to 21.02 there was an option under RA to advertise DNS other than the router itself. Now in 21.02 that option seems to be missing, but it appears if I enable the DHCPv6 server. Any ideas how to advertise my pihole ipv6 as DNS? Router is Archer C7v5.
uci add_list dhcp.lan.dns='fdfd::1' ; uci commit dhcp; service odhcpd restart
Change the nameserver to the one of the PiHole.