IPv6 and DNS-Over-HTTPS on Pi-hole

When ipv6-test shows that you have IPv6 internet connectivity on the client then you'll be able to do what you want to acheive. For that you will need to figure out why the client does not have IPv6 and that is beyond the scope of what we support.

ipv6-test shows that I do not have IPv6 internet connectivity, please see above and below

grafik

Then you will be unable to connect to services that are offered via IPv6.

I found out what the issue was, pinging to fe80::... needs to have the zone index:

root@odroid:~# ping6 fe80::7eff:4dff:fe95:34c4%eth0
PING fe80::7eff:4dff:fe95:34c4%eth0(fe80::7eff:4dff:fe95:34c4%eth0) 56 data bytes
64 bytes from fe80::7eff:4dff:fe95:34c4%eth0: icmp_seq=1 ttl=64 time=1.21 ms
64 bytes from fe80::7eff:4dff:fe95:34c4%eth0: icmp_seq=2 ttl=64 time=0.871 ms
^C
--- fe80::7eff:4dff:fe95:34c4%eth0 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.871/1.041/1.212/0.173 ms

I got the hint from 136852 – ping6 gives "connect: invalid argument" for link-local (FE80) addresses.

So, is it a bug when pihole does not add %eth0 to the IPv6-gateway when carrying out the ping test in pihole -d?

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