This memo describes a prefix assignment mechanism for home networks.
It is expected that home gateway routers are allocated an IPv6 prefix
through DHCPv6 Prefix Delegation (PD) or that a prefix is made
available through other means. This prefix needs to be divided among
the multiple subnets in a home network. This memo describes a
mechanism for such division, or assignment, via OSPFv3. This is an
alternative design to also using DHCPv6 PD for the assignment. The
memo is input to the working group so that it can make a decision on
which type of design to pursue. It is expected that a routing-
protocol based assignment uses a minimal amount of prefixes.