IPv6 Address Space Management, Paul Wilson, APNIC Secretariat

Synopsis

This proposal describes a scheme for managing IPv6 global unicast 
address space whereby address allocations are made from a single 
global pool according to a "sparse allocation" algorithm. 

This allocation process will maximise aggregation of address space, 
ensuring that most ISPs retain a single prefix as they grow, and 
avoiding the address space fragmentation which results from the 
current IPv4 allocation technique.