SUBMITTED TO:-Ranjan SharmaSantosh KumarRahul Kr. SinghSandeep Manzhi

TECHNOCRATS INSTITUTE OF TECHNOLOGY & SCIENCE

Introduction of IPV6

Guided By:--PROF. ALESH SHARMA

INDEXHistory Of Computer NetworkWhat Is IPV6Why Need IPV6AddressingIPV6 Address Distribution IPV4 vs IPV6Benefits Of IPV6Features Of IPV6Issue s of IPV6CONCLUSION

Computer Networks

A Computer Network Is a collection of Computers and other hardware components interconnected by a communication channels that allow sharing of resources and information.

History of Computer Networks

ARPANET

• Communication through Computer came into existence in 1969.

iana

iana(Internet Assigned Number Authority)

Registry Area Covered

AFRINIC Africa Region

APNIC Asia/Pacific Region

ARIN North America Region

LACNICLatin America and some Caribbean Islands

RIPE NCCEurope, the Middle East, and Central Asia

WHAT IS IPV6 ?

IPV6—INTERNET PROTOCOLVERSION 6

IPV6 is the Internet's next-generation protocol, designed to replace the current Internet Protocol, IP Version 4.

Announcement Of IPV6 In WorldWide 14 July 1999 By “IETF(Internet Engineering Task Force)”.

Why Need IPV6 ?

• Deficiency of IPv4• Address space exhaustion• New types of service

Security Mobility (MIPv6)

• Header and format limitations

Address Format3FFE:085B:1F1F:0000:0000:0000:00A9:1234

8 groups of 16-bit hexadecimal numbers separated by “:”

Leading Zeros can be removed

3FFE:85B:1F1F::A9:1234

“::” All Zeros in one or more group of 16-bit hexadecimal numbers

IPV6 Addressing128 bit Address Size AddressMore Than “Three Hundred and Fourty Trillion, Trillion ”.

IPV4 ADDressing

32 bit Address Size AddressMore than 4.3 Billion (4,294,967,296)

IPV6

3FFE:085B:1F1F:0000:0000:0000:00A9:1234

128 bits16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits 16 bits

IPV4

192. 168. 1. 1

32 bits8 bits 8 bits 8 bits 8 bits

IPV4 vs IPV6 Header Format

Version IHL Type of Service Total Length

Identification Flags Fragment Offset

Time to Live Protocol Header Checksum

Source Address

Destination Address

Options Padding

Field’s name kept from IPv4 to IPv6Fields Not Kept In IPV6Name & position changed in IPv6

New field in IPv6

Lege

nd

IPV6 Header Format

Version Traffic Class Flow Label

Payload Length Next Header Hop Limit

Source Address

Destination Address

Benefits Of IPV6

• The Computer is an end point in the network. It sends and receives data.

Expanded addressing capabilities

Structured hierarchy to manage routing table growth

Serverless Auto-configuration and reconfiguration

Streamlined header format and flow identification

Improved support for options / extensions

Features Of IPV6

switchswitch

Improved support for options / extensionsMobility - More efficient and robust mechanismsSecurity - Built-in, strong IP-layer encryption and authenticationQuality of ServicePrivacy Extensions for Stateless Address Autoconfiguration (RFC 3041)

Issues of IPV6

• It translates the data produced by the computer into a form that can be transmitted over the local network.

Address length: usable addresses vs. overheadHop limit: is 65K necessary?Max. Pkt. Size: Larger BW calls for larger pkts.Is the checksum necessary?How do servers handle both types of packets? Is security necessary in IP?

--How is it best implemented?DNS can be very important in the transition –

how?

CONCLUSION

• Network media such as cables or wireless media provide the means by which the signals are transmitted from one networked device to another

IPv6 is NEW …– built on the experiences learned from IPv4– new features– large address space– new efficient header– Auto-configuration

… and OLD– still IP– build on a solid base– started in 1995, a lot of implementations and tests done

THANK YOU