In this case we not only wish to configure DNS etc. as described in previous section, but also IP addresses. There are several reasons one might want to do this. Stateless autoconfiguration as described in RFC 2462 creates addresses based on interface identifiers that are typically EUI-64 identifiers. On e.g. Ethernet this will be created from the MAC address on the hosts Ethernet interface. This means that the IPv6 address will depend on the physical Ethernet interface. One might wish for a host to have a stable address independent of which Ethernet interface is used though, and there are also some privacy concerns. It can also be a pain to have meaningful PTR records in the DNS for reverse lookups. DHCP can help to fulfill all of these requirements.