Set IPv6 DNS server

[DarkWolfSLV]

Hi!
Is there a way via the CLI (since it is not possible on the GUI due to the character limit) to add an IPv6 DNS server for your LAN DHCP configuration?
Currently using IPv6 Passthrough but even with static IPv6 settings, the DNS information is for the Router and not the clients.

Thanks.

 

[RMerlin]

The DHCP DNS fields do not support IPv6, only IPv4. That's because the clients use DHCP for IPv4, but RA for IPv6 - two different configuration mechanisms.

 

[DarkWolfSLV]

Hi @RMelin I understand what you are saying, but there's no way to manipulate what Router Advertisement will deliver. At least for the DNSv6 information.
Currently the ASUS insert itself as DNS server, but I would like to set it to be my IPv6 pihole address.

Thanks.

 

[dave14305]

You can use a dnsmasq.postconf script to replace the existing parameter with your Pi-Hole address.

pc_replace "dhcp-option=lan,option6:23,[::]" "dhcp-option=lan,option6:23,[2600:1234:5678::]"

There are examples in the forum if you search on option6.