[mjevans]

According to the only option I have for a "Broadband" (FCC 25mbit down 3mbit up) ISP... No, they're still happily giving me only a /64 IPv6 address.

IPv6 wants to reserve the lower 64 bits for RNG addresses (sure, fine), and the upper 32 bits for classification and global routing (also fine?); leaving 32 bits for inner-ISP subnet needs. In practice the ISPs seem intent on at _best_, for an actual business class connection (which I've seen) providing a /56 to that, but forcing stupid router firmware to eat /4 of that, leaving in practice a /60 on the business link.

"Stateless address autoconfiguration (SLAAC) requires a /64 address block, as defined in RFC 4291. Local Internet registries are assigned at least /32 blocks, which they divide among subordinate networks.[42] The initial recommendation stated assignment of a /48 subnet to end-consumer sites (RFC 3177). This was replaced by RFC 6177, which "recommends giving home sites significantly more than a single /64, but does not recommend that every home site be given a /48 either". /56s are specifically considered. It remains to be seen whether ISPs will honor this recommendation. For example, during initial trials, Comcast customers were given a single /64 network.[43]"

https://en.wikipedia.org/wiki/IPv6#Global_addressing

[bscphil]

I've been sort of fortunate given how terrible American Internet is to be on Charter (legacy Time Warner). Due to their agreement with the FCC they can't (yet) put any cap on data use, and they've always given me a /56 when I request one. [1]

Really not looking forward to having to move or Charter finally implementing caps. With a lot of luck I'll be somewhere with municipal fiber, but I'm not hopeful.

[1] If you don't send an IPv6 prefix hint, you get a /64. I can get a /56 reliably by requesting it. Behavior with /48s is a bit buggy. Last time I tested it I could get a /48 some of the time, but sometimes the request would fail and I'd end up with a /64, so I went with the stable option instead.