Except there really is no vendor lock anymore. It is
possible to automate the entire renumbering process. If
there are spots where it is not automated then they should
be found and fixed.
Oh man, that's rich. Do you actually believe that?
If you design the network for IPv6 and not just copy the
IPv4 model. If you use the technology that has been developed
over the last 20 years, rather than disabling it, yes it is
possible.
That helps, but understanding of IPv6 and mindshare is even harder than
forklift upgrades. And you have to educate everyone who might need to
configure an application, not just network admins. And if you start
looking for technology that would let you automate renumbering your
entire network, you might find that the technology that exists is
incomplete and unproven. I have yet to see a reliable, standard way to
transmit address-based access-control information to applications, for
instance. (don't tell them to use DNS, because besides being too
unreliable to use for this, I am not aware of a DNS record that can
transmit a list of IP address prefix/netmask pairs to applications, or
of a standard API that would allow applications to find such
information. oh yes, and practical use of DNS security still seems to
elude us. and yeah, we shouldn't be using IP addresses for access
control - but the general purpose technology to replace that doesn't
seem to exist yet, so for the time being people are making do with what
they have.)
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