Here is an example of a full IPv6
address:
FE80:0000:0000:0000:0202:B3FF:FE1E:8329
It shows a 128-bit address
in eight 16-bit blocks in the format
global:subnet:interface.
Here is an example of
a collapsed IPv6 address:
FE80::0202:B3FF:FE1E:8329
The :: (consecutive
colons) notation can be used to represent four successive 16-bit blocks
that contain zeros. When SAS software encounters a collapsed IP address,
it reconstitutes the address to the required 128-bit address in eight
16-bit blocks.