Dave,
On Aug 24, 2007, at 1:32 AM, Dave Cridland wrote:
I'm honestly struggling to see what the issue is here. I certainly
agree that renumering is a pain, but I don't follow why renumbering
is so significantly painful that it's worth breaking the network
for. I'm not saying it isn't, I just can't see how it is, and would
appreciate some enlightenment.
If you obtain address space from a service provider and you decide to
change providers, you have (in most cases) two options: renumber or
deploy NAT. It is a simple cost/benefit tradeoff, with the costs
impacting software and protocol developers not really a
consideration. From the perspective of the network administrator,
which is easier? Going through every configuration file, network
management program, firewall, router, etc. throughout their entire
infrastructure and changing every reference to IP addresses or
deploying a new box into the network infrastructure (and I'm not
going to go into whether or not that box is deemed to have provide
additional security)? Obviously, if you obtain provider independent
address space, you don't need to renumber. Unfortunately, this
doesn't scale.
Regards,
-drc
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