Ipv6 Transition Mechanism

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Implementation of IPv6 Hotspot Network
towards the IPv6 Transition Strategy

A.Suffian Mohamad, Ahmad Syamil Wahid, Dr. Jalil Md Desa
Network Transmission & Security Cluster, IP-Core Network Technology Programme, TM R&D {asuffian, syamil, drjalil}@tmrnd.com.my

Abstract—IPv4 is showing its limitations as global communications and service demands increase and new Internet applications are developed. IPv6 is the next-generation protocol designed to replace IPv4. Transitioning from IPv4 to IPv6 is important because IPv6 will provide a network infrastructure that is more scaleable and secure. IPv6 can enable advanced applications for communications and can provide a robust foundation for the 21st century information age. This paper presents the implementation of IPv6 hotspot network as the deployment strategy approach towards the transition to IPv6 by using dual-stacks and configured tunnel mechanism.

Index Terms—IPv6 Transition, IPv6 Hotspot Network
I

INTRODUCTION

Pv6 has several well-known and understood benefits besides the increased address space. These include increased end-to-end security of systems and automated address allocation for internet connected devices. We are in the early stages in the deployment of IPv6, with few IPv6 applications in the market and the first router products needing to make trade-offs between the available IPv6 services. The initial focus of is on the migration and transition techniques required for the deployment, rather than on meeting the requirements for high levels of traffic. There are many hurdles to overcome before a successful transition from IPv4 to IPv6 can be made. With a huge installed base of IPv4, a key obstacle to IPv6 deployment is how to migrate to the ‘new’, while continuing to support the ‘old’. Transitional technologies that allow coexistence of both versions and a phased transition to IPv6 are essential. Although the success of IPv6 will depend ultimately on the availability of applications that run over IPv6, a key part of the IPv6 design is its ability to integrate into and coexist with existing IPv4 networks. It is expected that IPv4 and IPv6 hosts will need to coexist for a considerable time during the steady migration from IPv4 to IPv6, and the development of transition strategies and mechanisms has been part of the basic IPv6 design from the start.

A. IPv4 Exhaustion Problem
Research at Potaroo projects the date of exhaustion of unallocated IANA (Internet Assigned Numbers Authority) IPv4 addresses as April 22, 2011, and that of the Regional Internet Registries (RIR) pool as July 31, 2012 [1]. While there are no critical business drivers to move to IPv6 immediately, the development of ubiquitous IP networks, the shift to IP-based communications and the adoption of e-business strategies across numerous other technologies are all putting pressure on the available IPv4 address space. Organizations use Network Address Translation (NAT) and other interim measures to overcome IPv4 address space limitations, but over time these organizations will be limited in their ability to respond to address space pressures and to take advantage of capabilities offered by IPv6. IPv6 was developed to increase the amount of available IP address space. By managing the IPv6 transition process early and collectively, agencies will be able to better align and synchronize transition programmers, optimize procurement, manage programmer and technical risks and manage vulnerabilities more deliberately. Office of Management Budget (OMB), USA issued a memorandum, which requires the USA federal government agency’s network backbone to be ready to transmit both IPv4 and IPv6 traffic, and support IPv4 and IPv6 addresses, by June 30, 2008 [2]. A transition strategy from IPv4 to IPv6 that begins from the edges of the network and moves in toward the core. This strategy allows you to control the deployment cost and focus on the needs of the applications, rather than...
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