For PPPoE v6 hosts, the IPv6 address is not obtained during the IPCP phase (only the interface-id is negotiated). Then, the node waits until the IPv6 address/prefix is allocated to the IPv6 hosts before it sends the CCR-I message. Otherwise, the IP address would not be available in CCR-I. This is shown in Figure: Gx and PPPoEv6 host instantiation.