Ipv6 by Krish

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Contents:-

• What is IPV6?

• Why we need IPV6(benefits)?

• Ipv6 addressing

• Features of IPV6

• Ipv4 Vs ipv6

• Summary

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What is IPV6?

IPv6 stands for Internet Protocol version 6. intended

to succeed Internet Protocol version 4 (IPv4)

IPv6 is also known as Ipng, which stands for IP Next

Generation.

 IPv6 was developed by the Internet Engineering TaskForce (IETF).

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Need of ipv6

• IPv4 address exhaustion.

•  IPv4 allows 32 bits for an IP address, and therefore

has 232 (4,294,967,296) possible addresses.

•  IANA – the Internet Assigned Numbers Authority –

had allocated its last available blocks of IPv4addresses to the five Regional Internet Registrars

(RIRs).

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© 2002, Cisco Systems, Inc. All rights reserved.555

Explosion of New Internet Appliances

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IPV6 

• IPv6 allows more users and devices to communicate on the

Internet.

• IPv6 addresses have 128 bits for it’s address so itallows 3.4×1038 addresses.

• we have a maximum of 2¹²⁸ addresses available, or

340,282,366,920,938,463,463,374,607,431,768,211,456enough to give allow many devices to communicate for long

future.

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Ipv6 addressing

• Example of an old and new addressing scheme:

• Old - IPv4 address:

•   129.14.12.200• 10000001.00001110.00001100.11001000 (32 Bit)

• New - IPv6 address:

•   1029:9183:81E2:0000:0000:01D5:2115:019B

• 0001000000101001: …………….. : ……………. : ……………. :……………. : ……………. : ……………. : ……………. (128 bit )

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•   To simplify the entire

IP format, some of the

IPv4 header fields were

dropped or made optional

in IPv6.

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Features of ipv6

Improved efficiency in routing and packet handling. 

Support for embedded IPSec

Elimination of the need for network address

translation (NAT)

Expanded Addressing Capabilities

Header Format Simplification

Flow Labeling Capability Authentication and Privacy Capabilities

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 • Types of IPv6 Addresses

•IPv6 addresses are broadly classified into three categories:

1) Unicast addresses

•  2) Multicast addresses

•  3) Anycast addresses.

• IPv4 to IPv6 conversion

• You can convert IPv4 to IPv6 online

• Here is site:

• http://www.subnetonline.com/pages/subnet-calculators/ipv4-to-ipv6-converter.php 

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Ipv4 VS ipv6

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Summary

• Deployment to ipv6 has begun

• Ipv6 not only providing the large address

space but also gives security, multi homing,

best mobility support, efficient routing.

• References : – Ipv6.com

 – wikipedia

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Thank you

By

A.Krishna Prasad