Re: Security over IPv6 networks
On Thursday, March 13, 2003, at 12:15 PM, Fabio Massimo Di Nitto wrote:
Well I don't completely agree. For what I have seen around soon or
later
even your washing machine will have an IPv6 address. It is true that
the
amount of ip to probe are higher but also the amount of hosts will
increase.
ln(2^128) / ln(10) =~ 30.53. So there are 10^30.5 IPv6 addresses. If
all of the six billion people on the earth decided to get six billion
cell phones each, then that'd only be about 10^19 addresses used. Very,
very, sparse --- better chance of winning the jackpot at the lotto than
getting a single ping back from a random address.
That's no where near enough addresses! Let's use more. Let's assume
that each of the 2^11 stars in the Milky Way is much like our own. They
all have one planet, with six billion sentient beings on it, each with
their own six billion cell phones. That bings us to 10^30 addresses
used.
Now we've finally done it. By giving an address to every sentient being
in the Galaxy, and to each of their six billion cell phones each, we've
managed to get a dense IPv6 address space. Assuming I got the math
right, of course ;-)
I certainly did ignore that many regions of the IPv6 space a reserved
or unused, and thus people wouldn't scan them. As I mentioned, I have a
/64. Most of us on this list probably have at least a /64. It doesn't
matter if I have ten, a hundred, or a million different devices on that
network. It's still very, very sparse.
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