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A comment on IPv6 Traffic Crosses the 50% Mark for the First Time. Parent comment

Re:IPv6 Traffic Crosses the 50% Mark for the First Time by kstrauser on Thursday April 16, 2026 @09:28AM (#47792670)
> You're uniquely tagged and identifiable on every website you visit.

Almost every modern OS enables IPv6 privacy extensions, ie address randomization, by default.

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Re:IPv6 Traffic Crosses the 50% Mark for the First Time by tengwar2 on Friday April 17, 2026 @04:59AM (#47803887)
On the last 64 bits, yes. On mobile phones, the first 64 bits may be fixed. This was something I argued against when I was at Vodafone Group, but didn't get any traction. That was a while back, but I'd assume that this is still the case, and that mobile phone addresses can be used for tracking.
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Re:IPv6 Traffic Crosses the 50% Mark for the First Time by throwawaypath on Friday April 17, 2026 @02:41PM (#47809167)
The prefix is your globally unique identifier. "Privacy addresses" provide zero privacy.
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Re:IPv6 Traffic Crosses the 50% Mark for the First Time by kstrauser on Friday April 17, 2026 @05:22PM (#47810716)
Just like IPv4, then. Ultimately some part of the address has to identify the physical router.
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Re:IPv6 Traffic Crosses the 50% Mark for the First Time by throwawaypath on Friday April 17, 2026 @05:46PM (#47810958)
No, not just like IPv4. My IP address is 192.168.0.23 right now, as are millions of others. Add in CG-NAT from my ISP and I do not have a globally unique identifier.
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