Unfortunately SLAAC doesn't force upstream to provide a /64 universally.
replySome ISPs are reportedly giving out a /128, and SLAAC works adequately with a router performing IPv6 NAT, so those ISPs don't see a problem.
Mobile phone as WiFi access point is another common way people access the net nowadays. I've occasionally seen permanent installations, with a phone taped to a window. I've never seen a mobile phone AP offer IPv6 to clients, but if they do they have to use SLAAC-compatible IPv6 NAT in that situation.
Thats why android supports dhcpv6-pd for a /64, but not assigning a /128 from dhcpv6
replyWell, my phone as access point grants an IPv6 public IP without NAT. There's a stateful firewall somewhere in the chain though.
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