A variety of functionality to make IPv6 transitioning for a large number of unmanaged networks scalable and feasible is missing. Most notably we missed:

1. Dynamic DNS updating for autoconfigured addresses.
2. Automatic configuration on clients of IPv6 DNS resolver addresses (e.g. using DHCPv6, SLP or some well-known address).
3. Automatic configuration of transition mechanisms, especially those used on the home gateways.
4. Automatic configuration of the network prefix to use inside a home network.

The latter was sorely missed on a wireless based network with many links. It can be non-trivial to find out what antenna/link you are actually connecting too and what IPv6 addresses belong to it. We needed to define fairly elaborate technical and administrative procedures for new users to get their home gateway connected. We used the RIP routing protocol on home gateway routers and the routers of the core network. The main reason was not routing, but network debugging and making it easier to assist users remotely in getting connected.