Mark,
I get renumbered in IPv4 today.
I suspect there is probably a question of scale here.
I wouldn't be surprised that a small home network with a limited
number of subnets and systems could be automatically renumbered.
I would be surprised if a network of any appreciable size could be.
Particularly one that has non-trivial relationships with other networks.
How many subnets and devices are there on the network you
automatically renumber?
Regards,
-drc
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