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Comment by p0w3n3d | Hacker News Reader

Correct me if I'm wrong, doesn't it make you leak your IP outside local network? I'd say this is a great turn off especially nowadays when it will be used for sure for tracking

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I'm not sure what you mean by "leak your IP" since IP address is always how you communicate. I guess you mean you no longer have a 192.168 or a 10. address that is "hidden" from the Internet for whatever value that has? One nice thing about IPv6 is your local client can continually change their address if they so want (and this is actually a common feature) to disrupt tracking. Sure you have the same prefix, but that's exactly the same boat you were in with IPv4 and NAT.

So this 'feature' is just a fix for the issue with tracking that would not be there with ipv4 beside that my internal ip's are changing every day to bring more confusion into my internal net. nice!

You are being tracked on IPv4 via the gateway address. It's no different. Changing your local IPv4 address does absolutely nothing, while changing the local IPv6 address does almost nothing. Hooray.

Oh but it is different. It for example doesn't leak how many unique devices there are on your network. This might be very useful in a world that is moving towards authoritarian tech dystopia at mind-boggling speeds.

Yes, yes, we have privacy extensions, but you can still group those through higher-level fingerprinting. You don't get mixed traffic.

> beside that my internal ip's are changing every day to bring more confusion into my internal net. nice!

You can set it up so your devices can have two IPv6 addresses. The shifting address for external traffic, and a static one for local traffic. I think this is the default in many linux distros now.

my mistake, sorry. I meant MAC - but I learned it is no longer the case (at least not always). There used to be the standard that your IPv6 is concatenation of your MAC and part of router's external IP.

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