radvd.conf does not include all configured RDNSS entries
The ipv6 RA does not include all configured dns entries from services_router_advertisements.php configuration page.
Configure two ipv6 addresses in DNS servers entries in the UI under "DHCPv6 Server/RA".
Enable unmanaged mode (with a properly defined ipv6 /64 subnet)
This properly saves the configuration entries to the config.xml file under:
However the code that picks up these addresses from the pfsense config (and performs the radvd.conf output) does not look in the correct place for these entries (code is in services.inc). It only looks in "dnsserver" for config entries, when it needs to look in "radnsserver".
I have a mocked up services.inc that works on my machine. Let me know if you want me to try to put together a real patch for review.