2. The Internet Protocol (IP) is the method
or protocol by which data is sent from one
computer to another on the Internet.
Each computer (known as a host) on the
Internet has at least one IP address that
uniquely identifies it from all other computers
on the Internet.
3. The Internet Protocol is responsible for
addressing hosts and routing datagram(packets)
from a source host to the destination host across
one or more IP networks.
For this purpose the Internet Protocol defines an
addressing system that has two functions:
1> Identifying hosts
2> Providing a logical location service.
4. IPv4 was the first version of Internet
Protocol to be widely used, and accounts
for most of today’s Internet traffic.
There are just over 4 billion IPv4 addresses.
While that is a lot of IP addresses, it is
not enough to last forever
5. IPv6 is a newer numbering system that provides
a much larger address pool than IPv4.
It was deployed in 1999 and should meet the
world’s IP addressing needs well into the future.
6. IPv4 (32-bit address space) will soon be
exhausted because of exponential growth of the
Internet.
IPv6 uses 128 bits to represent each address.
For compactness the designers of IPv6 propose
using colon hexadecimal notation.
This new address space is so large it is not
expected to be exhausted for many decades.
7.
8.
9. Simpler
IPs a normal human might be able to remember.
Less programming, less memory, etc.
Familiarity
Thousands (millions?) of Network and System
Administrators already know it.
Existing infrastructure supports it at almost every
level already.
10. Expanded addressing capabilities
Structured hierarchy to manage routing table
growth
Server less auto configuration and
reconfiguration
Streamlined header format and flow
identification
Improved support for options / extensions
11. No one has “failed”
IPv6 deployment is happening
All players need to work and act together
Technical standards, implementation by vendors,
deployment by operators, use by users
Best advice: sooner rather than later
Start the planning process now
