sorry for too much cross-posting.  I think the following part in the
        APNIC text is slightly unclear.

>These are:
>1) /64 for single devices (such as mobile phones), /48 for all other sites
>2) /64 for single devices, /48 for large end sites which need more 
>   than 256 subnets, and /56 for other sites (eg small, domestic/home sites)

        Does /64 mean "address behind the device", or "address for the ppp
        link"?

        (1)                             (2)

        ISP router                      ISP router
          |link local only                |link local and global
          |                               |     <--- /64 is here
          |link local only                |link local and global
        customer router                 customer device
          |link local and global
        ==+=== <--- /64 is here

        Note that it is legal and possible to run routing protocol on
        diagram (1).  All of IPv6 routing protocol is written this way
        (and static routing is possible too).

itojun
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