The above config is for a PE router setup in a broadband configuration (IPv6 access services: DHCPv6 prefix delegation ); In this setup, a customer (DSL/Cable) will request /64 or /48 from the PE Router, as the PE router is a DHCP router for prefix delegation, the CPE would get lets say a /48 and then on the CPE router, you would setup DHCPv6 for the client/host addresses from a /64 perspective.
If you do not have a PE router in your lab and all you want is a simple DHCPv6 server then try this:
ipv6 unicast-routing
ipv6 dhcp pool dhcp1
address prefix 2001:0470:0:FEED::/64 lifetime infinite infinite
link-address 2001:0470:0:FEED::1/64
int f1/1
ipv6 addr 2000:0470:0:FEED::1/64
ipv6 dhcp server dhcp1
Client:
ipv6 unicast-routing
int fa0/1
ipv6 address dhcp
Billy
