What type in LUCI to configure router behind rpi3 with dns server

How should I configure OpenWrt router, when raspberry which is connected is DNS server? I wrote this postdig my_dns_server. I think, here, I will get more professional answer. I configured port forwarding. Also I assigned DNS forwardings to my local rpi IP and 8.8.8.8. I' am wondering about configure DNS servers in WAN and LAN interfaces. How can I do that correctly?

  • Simply give OpenWrt the IP of the Pi DNS server
  • Place in WAN config
  • Done.
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https://openwrt.org/docs/guide-user/base-system/dhcp_configuration#secondary_dns_server

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