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Upgrading IPv4 to IPng - IPv6 |
The transition from IPv4 to IPv6 should be simple and flexible. The upgrade is Incremental:
Existing IPv4 hosts and Routers
may be upgraded to IPv6 and new hosts and Routers can be
installed independently.
When existing IPv4 hosts or Routers will be upgraded, they can
continue to use their current address.
The start-up costs are low and little work is needed to upgrade existing systems
to IPv6, as support for it
has already been embedded to the current protocol. The upgrade is basically transparent to the
end-user.
Currently the Internet is somewhere "in between versions", but most of it still uses IPv4, somewhat due to the world's economical condition that prevents large investments in replacing the routing infrastructure to IPv6. Meanwhile, other solutions were invented in order to improve IP addressing and solve some of the problematic issues mentioned earlier in this text, and are discussed next.
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