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O’Reilly Network: OpenBSD and the Future of the Internet

“Many vendors nowadays offer networking solutions said to be on
the “bleeding edge” of technology and development. This is
particularly common in the Linux community, with tools like
GNOME-based WML browsers touted as leading the way. However, the
singular protocol of the future that seems certain to be adopted
and even more certain to cause a considerable headache for those
not leading the way now is the new Internet itself — IPv6. The
Internet as we know it is based entirely around the IPv4 (Internet
Protocol Version 4). This is becoming rapidly deprecated due to
limitations, such as the maximum number of live hosts.”

OpenBSD 2.7 now ships with complete IPv6 support. In real
world terms, this means you could feasibly operate a purely IPv6
network of OpenBSD machines, or have them participate in an IPv6
internetwork.
The most common method of IPv6 implementation at
the moment, however, is integration into the “6bone.” This is a
virtual IPv6 backbone comprised of hosts through which users can
tunnel Ipv6 over IPv4. The basic premise is to facilitate IPv6
development and the existence of an IPv6 “internet” without the
necessity of completely rebuilding the backbone
infrastructure.”

Complete
Story