Stateful DHCP for IPv6
IPv6 hosts can use stateful DHCP to learn and lease an IP address and corresponding prefix length (mask) and the DNS IP address(es). The concept works basically like DHCP for IPv4. The host sends a (multicast) packet searching for the DHCP server. When a server replies, the DHCP client sends a message asking for a lease of an IP address, and the server replies, listing an IPv6 address, prefix length, and DNS IP addresses. (Note that Stateful DHCPv6 does not supply the default router information, instead relying on Neighbor Discovery Protocol [NDP] between the client and local routers.) The names and formats of the actual DHCP messages have changed quite a bit from IPv4 to IPv6. So, DHCPv4 and DHCPv6 actually differ in detail, ...
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