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IPv6 Implementation - Assessment and Deployment Services

The Business Case for IPv6
To a large degree, mass adoption of new technology is fueled by a person's vision of "What's in it for me?" Can the new technology improve my business operations? Can I use it to provide a new profitable service? Is adoption needed to stay competitive? Will the new technology enrich my personal life? At the end of the 70s, few of the IP designers envisioned the rapid and widespread adoption of IP; IP became the convergence layer for communication services in many industry segments such as home, mobile wireless, transportation, media, and many others. This convergence, along with a plethora of new Internet enabled devices, provides a fertile and unexpected foundation for innovation that far exceeds the original design constructs. Information movement is now the game, and content is king.

IPv6 is required because of the fast depletion of IPv4 addresses. IPv6 will enhance security of the TCP/IP stack, but most importantly increase the number of IP addresses available to use. This will essentially remove the need for network address translation (NAT).

So What’s In It? Even if you’ve never studied IPv6, you may know about its most famous feature: big addresses. IPv4 uses 32-bit addresses, and with the growth of the Internet, these have become a scarce and valuable commodity. Organizations have gone to great lengths to deal with the shortage and high cost of IPv4 addresses. The most visible change in IPv6 is that addresses balloon from 32-bits to 128-bits.



Address Space
Increase from 32-bit to 128-bit address space

Stateless autoconfiguration means no more need to configure IP addresses for end systems, even via DHCP

Predictable header sizes and 64-bit header alignment mean better performance from routers and bridges/switches

Built-in features for multicast groups, management, and new "anycast" groups

Mobile IP
Eliminate triangular routing and simplify deployment of mobile IP-based systems

Virtual Private Networks
Built-in support for ESP/AH encrypted/authenticated virtual private network protocols; built-in support for QoS tagging

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