What is "DHCPv6 context"?

I have a working Pi-hole docker-base installation in the IPv4 space (which is what I am using).

I am taking the opportunity to set up IPv6. The interfaces have IP, for instance

root@srv ~ # ip addr show dev enp3s0
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 40:8d:5c:4b:aa:55 brd ff:ff:ff:ff:ff:ff
    inet 192.168.10.2/24 brd 192.168.10.255 scope global enp3s0
       valid_lft forever preferred_lft forever
    inet6 2a01:XXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX/64 scope global dynamic mngtmpaddr noprefixroute
       valid_lft 86255sec preferred_lft 86255sec
    inet6 fe80::428d:5cff:fe4b:aa55/64 scope link proto kernel_ll
       valid_lft forever preferred_lft forever

My Pi-hole is warning me that

no address range available for DHCPv6 request via enp3s0

What is the general direction I should be looking at? (so not specifically a solution, but rather the concepts this warning addresses (except that this is related to DHCP and IPv6 :slight_smile: )

For reference, the documentation:

As far as I know, if nothing has changed recently IPv6 support in docker is disabled by default and you need to enabled it before using.

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