The document summarizes the migration from IPv4 to IPv6. It discusses that IPv4 addresses are running out due to the increasing number of internet users and devices. IPv6 was created to support more addresses using a 128-bit system that supports up to 3.4*10^38 addresses. The key migration strategies discussed are dual stack, which supports both IPv4 and IPv6, and tunneling, which allows IPv6 packets to be sent over IPv4 networks. The advantages of IPv6 include a much larger address space, eliminating NAT, built-in IPSec support, and other security and networking improvements.

1. Migration
Of
IPv4  IPv6
Submitted By : Amit Kumar
Reg No :1501227251
Roll No : CS150053
Group : 1(B)
Guided By :
Beena Bani Vandna
Asst Prof.
CS Department

2. Contents
1. Introduction
2. Internet Protocol
3. Understanding IPv4 addresses
4. Understanding Ipv6 addresses
5. Advantage
6. Conclusion

3. Introduction
All of us use internet on our PCs, laptops, and maybe smartphones, I
phones, etc. We use internet either for sending or receiving messages or for
looking for some information or doing some sort of transactions. All of this
essentially requires our device to communicate with some other device on
the internet.
Now think about the postal system, say someone wants to send you a
package, to enable the package to reach to you, you need to provide some
physical address at the post office where the package can be delivered.
Similarly in order for your device to be part of the internet, it needs to have
an IP address or an Internet Protocol address.

4. What is IP??
A global computer network i.e. Internet is used by certain rules and
procedure that is Internet Protocol.
An IP (INTERNET PROTOCOL) address is a unique number used for
identifying a device on the internet.
An IP address basically consists of two parts –
A. Network part– This is used for identifying a particular network on the
Internet.
B. Host part- This is used for identifying a particular host/device on a given
network.
At present IPv4 is being used for addressing the devices on the internet.

5. Introducing IPv4
IPv4 addresses are basically 32 – bit
values. The 32 – bits of an IPv4 address
are segmented into four 8 – bit fields
called octets. Each octet is then converted
into decimal numbers from 0-255 and
separated by a period (dot).
The use of 32 bits gives us approximately
gives us 4 billion IPv4 addresses but with
the increasing number of users and new
devices connecting to internet. We are
quickly running out of them.

6. Classes IPv4
Class Address Range Supports
Class A 1.0.0.1 to 126.255.255.254 Supports 16 million hosts on each of 127 networks.
Class B 128.1.0.1 to 191.255.255.254 Supports 65,000 hosts on each of 16,000 networks.
Class C 192.0.1.1 to 223.255.254.254 Supports 254 hosts on each of 2 million networks.
Class D 224.0.0.0 to 239.255.255.255 Reserved for multicast groups.
Class E
240.0.0.0 to
254.255.255.254
Reserved for future use, or Research and
Development Purposes.

7. Migrating to IPv6
In now a days, users of internet network
are increasing like the bacteria
production.
A simple java enabled phones have
the internet connectivity.
There become a problem to identify
the devices . Here’s need to Migrate
IPv4 to IPv6
The IPv6 is the sixth version of IP
address. It is a 128 – bit long value,
allowing for 2^32 or 3.4* 10^38
addresses. To represent the 128 bit
address, IPV6 uses 16 – bit hexadecimal
fields separated by colons (:).

8. Migration strategies
1. Dual Stack– In the dual stack implementation all the network
devices (workstations, servers, routers, etc. ) support both IPv4 and
IPv6. The applications can communicate using either version. It is
an easy to implement strategy.
2. Tunneling – It is a transition mechanism whereby an IP packet from
one address family is encapsulated in an IP packet from another
address family enabling the original packet to be transported over
network of another address family.

9. Advantage of IPv6
1. Larger address space
2. Eliminates need for NAT it allows us to map a large pool of private IPv4
addresses to a few globally routable addresses, thus solving the problem
of address scarcity.
3. Comes with inbuilt support for IPSec – IPSec is the internet protocol
that ensures secure transaction of packets over the internet. IPv6 comes
with an inbuilt support for IPSec whereas it has to be manually
implemented in case of IPv4.
4. Comes with inbuilt support for IPSec – IPSec is the internet protocol
that ensures secure transaction of packets over the internet. IPv6 comes
with an inbuilt support for IPSec whereas it has to be manually
implemented in case of IPv4.
and many more

10. Differences IPv6 & IPv6
IPv4 IPv6
Deployed 1981 1999
Size of address 32-bit 128-bit
Address Format 172.1.0.104 2011:1006::6
IP Sec support Optional Inbuilt
Broadcast Messages Available Not Available

11. Conclusion
The purpose of this project was to thoroughly
study IPv6- its advantages, deployment and
migration etc.
As we realize for transition from IPv4 to IPv6,
we need to go through a stage where we
have to ensure a peaceful co- existence of
the two networks.
Also, the migration is inevitable because the
IPv4 addresses are no longer capable
enough to meet the address demands of the
world.

12. Refrences
“Migrating to IPv6 – A Practical Guide to
Implementing IPv6 in Mobile and Fixed
Networks”-by Marc Blanchet
• “IPv4/IPv6 Transition Mechanisms” - by
LukaKorsic ,Matjaz Straus Istenic
• The ABCs of IP Version 6 – Cisco IOS
Learning Services
• “IPv6 Basics” –by Marco Hogewoning,
RIPE NCC Trainer
• “IPv6 Now- IPv6 Prefix Primer”- by Karl
Auer