On 28/09/2017 14:23, JORDI PALET MARTINEZ wrote:
I don’t think even in those 500 years, we will run out of IPv6 addresses,
I hope you are right, but:
I am sure that the original IPv4 designers thought that 2^32 was likely
to be an infinity of IP addresses, but then the Internet was hugely
successful, and now they are all allocated.
I am also sure that the IEEE though that thought that 2^48 was likely to
be an infinity of MAC addresses, but then VMs were invented, and now
they are worried.
People are proposing to use IP addresses for all sorts of things other
than host addresses. For example, video fragments was one idea presented
at the last IETF, but once that flood gate is opened, who knows what
people will be wanting to address with IPv6 addresses, and how many they
will need.
So whilst 2^128 seems a pretty safe bet, history is not with us.
- Stewart
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