Cloudflare DNS IPv4 and IPv6



  • Looking to use the Cloudflare DNS for IPv4 and IPv6, I have them in the general setup:

    1d13a354-d0a8-45cb-9445-8381daa23a03-image.png

    And in the DNS Resolver I forward them and use DNSSEC and SSL/TLS:

    0e141fab-dfc0-4695-a6bc-9dc21c13cfd5-image.png

    Doing an IPv6 test it said I did not have IPv6, what would be causing this and what do I need to do to make it work.

    Thanks!



  • does your provider use IP6? do you have your pfsense setup fully for ip6?



  • @bose301s said in Cloudflare DNS IPv4 and IPv6:

    Doing an IPv6 test it said I did not have IPv6, what would be causing this and what do I need to do to make it work.

    Do you actually have an IPv6 address on pfSense?



  • Yes my provider uses IPV6 and if I put in the CloudFlare IPv6 DNS address in the DHCPv6 Server it then works, but not if I have them in the General Setup area.



  • You shouldn't need to enable dnssec if you're using forwarding mode with cloudflare. Also add the cloudflare hostname to enable hostname verification for the DNS servers. You can paste this in the hostname value for all 4 cloudflare DNS servers that are listed: 1dot1dot1dot1.cloudflare-dns.com

    Also for what it's worth the ip4 DNS servers still return ip6 results. So even if you only have the ip4 servers configured you'll still get ip6 results. Also try https://1.1.1.1/help for cloudflare diags.


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