C

3. Main Points :
 What is IP?
 IPv4
 IPv4 Problems
 IPv6 features
 Syntax of IPv6
 Types of IPv6 addresses
 Migration IPv6 with IPv4

4. What is IP ?
• An Internet Protocol (IP) address is a
numerical identification (logical
address) that is assigned to devices
participating in a computer network
utilizing the Internet Protocol for
communication between its nodes.

5. IPv4
• IPv4 uses 32-bit (4-byte) addresses,
which limits the address space to
4,294,967,296 = (2^32) possible
unique addresses .
Ex: 192.168.1.1

6. IPv4 Problems
1) Random distribution of IP
Africa Latin America, Europe, Asia Pacific United States,
parts of the Middle East, Canada,
Caribbean Central Asia parts of the
Caribbean
ISPs

7. IPv4 Problems
2) Using NAT
Using NAT to enable multiple hosts on a private
network to access the internet using a single public IP
NAT Public IP
Address

8. IPv4 Problems
3) Increasing the number of Users
The number of
internet users
increases
continually , on the
other hand the
number of IPv4
addresses is
constant
4.3 Billion IPv4 addresses are running out

9. Because all of this problems….

10. IPv6 features
1) The organized destribution of addresses
Africa Latin America, Europe, Asia Pacific United States,
parts of the Middle East, Canada,
Caribbean Central Asia parts of the
Caribbean
ISPs

11. IPv6 features
2) Supporting more IP adresses
3) No need to use NAT anymore

12. IPv6 Syntax
Eamples:-
2001:0050:0000:0000:0000:0AB4:1E2B:98AA
2001:0050::0AB4:1E2B:98AA
2001:50::AB4:1E2B:98AA

13. Types of IPv6 addresses
1) Global unicast address
2) Link local address
Start with FE80

14. Migration IPv6 with IPv4
1) NAT
2) Dual stack
3)Tunneling