n1st 3 bits are format prefix
nlast 16 bits of network ID are used for ÔsitesÕ
u/48 assigned to end-users.
nRIRs minimum allocation size: /32 blocks
nThe policy still moving target
|3 |
45 | 16| 64 bits |
+--+-----------------------+----+---------------------------+
|FP|
| |
Interface ID |
| |
| |
|
+--+-----------------------+----+---------------------------+