Reply to post: why did IPv6 use 128bit Hex?

We are absolutely, definitively, completely and utterly out of IPv4 addresses, warns RIPE

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why did IPv6 use 128bit Hex?

My guess is that it was trying to kludge together MAC addressing & IP addressing in 1 scheme, perhaps envisaging a world where the IP would just live in the ethernet frame, any machine could talk to any machine a full marriage of IP & Ethernet with a promise of efficiency, extensibility. Certainly the early implementations mandated the MAC address making up the end part of the IP until it was pointed out it was a privacy and security issue and was then made optional.

If they where creating IPv6 today it would look very very different to what we currently have.

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