Pi-hole v6 with Unbound - DNS Resolvers Not Reaching IPv6 Nameservers Despite Active IPv6 Connection

General Discussion
21

Let’s see how it looks now.

22 
user@DietPi:~$ ip -6 ad ; ip -6 ro list table all; ip -6 ru nslookup ipv6.google.com
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 state UNKNOWN qlen 1000
    inet6 ::1/128 scope host noprefixroute 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 state UP qlen 1000
    inet6 2001:db8:1234:5678:a1b2:c3d4:e5f6:7890/64 scope global dynamic mngtmpaddr 
       valid_lft 14295sec preferred_lft 14295sec
    inet6 fe80::a1b2:c3d4:e5f6:7890/64 scope link 
       valid_lft forever preferred_lft forever
3: tailscale0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1280 state UNKNOWN qlen 500
    inet6 fd12:3456:789a::b1c2:d3e4:5678/128 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::f1e2:d3c4:b5a6:7890/64 scope link stable-privacy 
       valid_lft forever preferred_lft forever
fd12:3456:789a::53 dev tailscale0 table 52 metric 1024 pref medium
fd12:3456:789a::/48 dev tailscale0 table 52 metric 1024 pref medium
2001:db8:1234:5678::/64 dev eth0 proto kernel metric 256 expires 14294sec pref medium
fd12:3456:789a::b1c2:d3e4:5678 dev tailscale0 proto kernel metric 256 pref medium
fe80::/64 dev tailscale0 proto kernel metric 256 pref medium
fe80::/64 dev eth0 proto kernel metric 256 pref medium
default via fe80::e1f2:a3b4:c5d6:7890 dev eth0 proto ra metric 1024 expires 1394sec hoplimit 64 pref medium
local ::1 dev lo table local proto kernel metric 0 pref medium
anycast 2001:db8:1234:5678:: dev eth0 table local proto kernel metric 0 pref medium
local 2001:db8:1234:5678:a1b2:c3d4:e5f6:7890 dev eth0 table local proto kernel metric 0 pref medium
local fd12:3456:789a::b1c2:d3e4:5678 dev tailscale0 table local proto kernel metric 0 pref medium
anycast fe80:: dev tailscale0 table local proto kernel metric 0 pref medium
anycast fe80:: dev eth0 table local proto kernel metric 0 pref medium
local fe80::f1e2:d3c4:b5a6:7890 dev tailscale0 table local proto kernel metric 0 pref medium
local fe80::a1b2:c3d4:e5f6:7890 dev eth0 table local proto kernel metric 0 pref medium
multicast ff00::/8 dev tailscale0 table local proto kernel metric 256 pref medium
multicast ff00::/8 dev eth0 table local proto kernel metric 256 pref medium
Command "nslookup" is unknown, try "ip rule help".
23

What does it say?
dig dietpi.com 2001:4860:4860::8888

24

beforehand, you would need to install package dnsutils

apt install dnsutils
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