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Cake day: June 7th, 2023

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  • Your prefix can change yes but the recommendation is that it shouldn’t in practice. You’ll find ISPs doing it right will extend your PD lease infinitely unless you release it for a long enough period of time. Similar to ipv4.

    The privacy is similar to ipv4 also. All your traffic on ipv4 looks like it’s coming from your WAN IP… Your PD is in this sense equivalent (though not literally equivalent for all the pedants reading) to your WAN IP.


  • Album@lemmy.catoSelfhosted@lemmy.worldA Short IPv6 Guide for Home IPv4 Admins
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    5 months ago

    It’s honestly super simple to set up. Outside of your ISP config it’s almost all autoconfig. 100% of the complication (at least for me) comes from knowing ipv4 first for 20 years and then trying to incorrectly map those concepts to V6.

    As soon as I “let go” it was fine.

    There’s not a huge net benefit you’re right. I mostly wanted to learn and I hope to be at the front edge of disabling ipv4 in the near distant future.



  • Ipv6 requires fundamental rethinking about how addressing is done. If you’re trying to apply v4 concepts to V6 you likely end up running into something they intentionally designed out.

    A unique local address is an address space where you could do that. It’s the equivalent to RFC1918 eg. 172/192/10. So you could statically assign fd0::x, and that is expected, but not required generally.

    I wouldn’t give each device a static unique global address unless they need to be accessed via wan without domain consistently. You lose device privacy really quickly that way because every device gets a unique globally routable address. It’s fine for internet facing services but most Linux, Windows, and mobile implementations are using ipv6 privacy extensions by default to ensure you get a random GUA every day.

    My network is dual stack and I connect mostly over ipv6 to all my internal clients using internal DNS. If my internal DNS is ever down I can fall back to ipv4 or it’s basically the one box on my network with an easy to remember ULA.