this post was submitted on 01 Dec 2025
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[–] litchralee@sh.itjust.works 11 points 1 day ago* (last edited 1 day ago)

You might also try asking on !ipv6@lemmy.world .

Be advised that even if a VPN offers IPv6, they may not necessarily offer it sensibly. For example, some might only give you a single address (aka a routed /128). That might work for basic web fetching but it's wholly inadequate if you wanted the VPN to also give addresses to any VMs, or if you want each outbound connection to use a unique IP. And that's a fair ask, because a normal v6 network can usually do that, even though a typical Legacy IP network can't.

Some VPNs will offer you a /64 subnet, but their software might not check if your SLAAC-assigned address is leaking your physical MAC address. Your OS should have privacy-extensions enabled to prevent this, but good VPN software should explicitly check for that. Not all software does.