
Private Addressing and Subnetting Large Networks • Chapter 11 467
Limited scope The reason you have all these addresses available is that
your network will not be connected to the global Internet. If, later, you
wish to communicate over the Internet, you must obtain official (globally
unique and routable) addresses and either renumber your devices or use
NAT.
Renumbering Anytime you switch to or from private addressing, you will
need to renumber (change the IP address of) all your IP devices. Many
organizations are setting up their user workstations to obtain IP addresses
automatically when booting up rather than assigning a fixed IP address to
the workstations. ...