Transitioning IPv4 to IPv6
The successful market adoption of any new technology depends on its easy integration with the existing infrastructure without significant disruption of services. The Internet consists of hundreds of thousands of IPv4 networks and millions of IPv4 nodes. The challenge for IPv6 lies in making the integration of IPv4 and IPv6 nodes and the transition to IPv6 as transparent as possible to end users. From renumbering, to router upgrades, to protocol conversion, to client support, many different techniques are needed to ensure a smooth transition.
Fortunately, the transition from IPv4 to IPv6 does not require upgrades on all nodes at the same time; IPv4 and IPv6 will coexist for some time. Many RFCs relate to this transition, ...
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