the sheer size of ipv6 alone means a lot of the 'old ways' get left behind. "sorting by ip" for example is eschewed in favor of router advertisements where hos

the sheer size of ipv6 alone means a lot of the 'old ways' get left behind. "sorting by ip" for example is eschewed in favor of router advertisements where hosts pick their own subnet delegations. one of the ways you track all of this is using a dhcp6 server with dns updates turned on. the subnet delegation is picked up by the client, which in turn pings dhcp6 and reports its IP for update in the DNS server.