2 ms·
It was not a design feature, but IPv4 NAT provides some anonymity that IPv6 will take away in the future (if it hasn't already). ISPs in my area assign a prefi
by beagle3 8y ago
It was not a design feature, but IPv4 NAT provides some anonymity that IPv6 will take away in the future (if it hasn't already).
ISPs in my area assign a prefix per customer; If you know the ISP, you know the length of the prefix, and can thus pinpoint the exact ISP customer with every connection.
On ISPv4+CGNAT, the common deployment, they can't do that.
- travbrack 8y agoThe IPv4 equivalent of that is giving each customer their own IP which happens all the time now. Individual devices within a customer network can be uniquely identified with IPv6 though which is new.
- beagle3 8y agoThe IPv4 equiv cannot and does not happen because of address pool size. Most ISPs charge extra for a fixed IPv4; and many default to CGNAT which makes it impossible to correlate even within a 10 minute period.