ipv6 seminar ppt
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IPv6 Deployment: Motivation and
Challenges
Contents:
• Introducing IPv6• Why IPv6?
Shortcomings of IPv4 Need of the Hour Transformations
• Motivation• Migration from IPv4 to IPv6• IPv6 Initiatives around the World
Introducing IPv6What is IP?
• Vehicle of the Internet- the “Internet Protocol”.• Assigns an address to a device so that it can
communicate with other similar internet devices.• IP Address- encoding Network Number and Host
Number- a unique combination.• A Network Layer Protocol, it provides
internetworking.• IPv4- the present version of the Internet
Protocol, is in use since 1982.
IPv6• IPv4 started showing up problems.• It was not designed to handle the kind of traffic it experienced.• IP had no choice but to evolve and become more flexible.• IETF started work on a new version of IP in 1990.• Final Specification drafted in December 1998.• IPv6 meets the goals set for it by IETF fairly well.• Although not compatible with IPv4, it works smoothly with other auxiliary internet protocols.
Timeline of IPv6Year Milestone
1990 IETF started its effort to select a successor to IPv4.
1993 Constitution of the IETF IPng Area.
1994 SIPP chosen as the IPng, which was renamed IPv6.
1996 Alpha quality IPv6 support in Linux Kernel v2.1.8.
1998 The final specification of IETF IPv6 drafted out.
2008 Beijing Olympics- the first major world event using IPv6 network infrastructure.
2009 National IPv6 Deployment Roadmap charted out.
2011 85% of the Top-level domains support IPv6.
2011 World IPv6 Day, a global 24 hour test drive on June 8.
2012 World IPv6 Launch Day on June 6.
2013 Percentage of users reaching Google over IPv6 surpassed 2% for the first time.
IPv6Some Features
• IP Address: 16 bytes long• Header: simplified, contains only seven fields• Options: better support for options• Jumbograms: supports jumbo-payload option• Security: IPSec implemented in IPv6• Quality of Service: Better than before
IPv6 Address
The Main IPv6 Header
Why IPv6?Shortcomings of IPv4
• Designed by DARPA, as a test of its networking capabilities.• The 4.3 billion address space is on verge of exhaustion.• Classful Addressing• The implementation of CIDR and NAT has brought along other problems.• Security• Near-obsolete Header
Why IPv6?IPv6- Need of the Hour
• Longer Addresses- 16 byte addresses- inexhaustible• Not everyone is connected yet• Simplifies Address Assignment• Security features• Simplified Processing by Routers• Mobility without renumbering• Better options in Header• Globally unique addresses• New-age applications
Why IPv6?Transformations
• Evolution of LTE as technology of future• Encryption and Authentication in Network Layer itself• IP Telephony, Interactive Gaming and other Audio/Video Applications• Built-in Multicasting Support• An all-new range of Machine to Machine Applications• IP Host Mobility
Motivations for IPv6 Deployment
• Stateless Address Auto configuration• Large Subnet Size• Multicasting• Improved Security• Simplified Router Processing• IP Host Mobility can usher in new services like:
Enterprise on the move Globally reachable Home Networks Internet-enabled Transport
• Jumbograms- a boon for Supercomputing
Drivers and Catalysts for Change
Migration from IPv4 to IPv6
Dual IP Stack Implementation
Tunnelling
Tunnelling• Automatic Tunnelling
6to4 Teredo ISATAP
• Configured and Automated Tunnelling (6in4)
Proxying and Translation for IPv6-only Hosts
IPv6 Initiatives Around the World
World IPv6 DayThe Internet Society promoted June 8, 2011, as "World IPv6 Day". The event was described as a "test drive" for full IPv6 rollouts.
World IPv6 Launch DayThe Internet Society declared June 6, 2012 to be the date for "World IPv6 Launch", with participating major websites enabling IPv6 permanently, participating ISPs offering IPv6 connectivity, and participating router manufacturers offering devices enabled for IPv6 by default.Wikimedia has been using IPv6 since this date.
ChinaThe China Next Generation Internet project is a five-year plan initiated by the Chinese government with the purpose of gaining a significant position in the development of the Internet through the early adoption of IPv6.• China showcased CNGI's IPv6 infrastructure during the 2008 Summer Olympic Games.• The deployment of IPv6 was widespread in all related applications.• The events were streamed live over the Internet• Networked cars were able to monitor traffic conditions readily.
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