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Except that IPv6 is actually not that large. You effectively can't use networks that are smaller than /64, because stateless autoconfiguration can't use any oth
by cyberax 2y ago
Except that IPv6 is actually not that large. You effectively can't use networks that are smaller than /64, because stateless autoconfiguration can't use any other prefix size (there's an effort to fix it, but it'll take a decade at best)
- immibis 2y agoYou can absolutely use them, you just need static or DHCP addressing just like the old days. But thanks SLAAC for forcing my ISP to give me /64 or bigger so I can always subnet into /96 for example.
- pantalaimon 2y agoHow many devices actually support DHCPv6? SLAAC is pretty much the standard way of assigning addresses these days.
- jeroenhd 2y agoJust about anything with a screen these days. The biggest holdout is Android and a bunch of IoT stuff. SLAAC works on any device that supports DHCPv6, though, so you might as well use it if you don't have any requirements to favour DHCPv6
- ironhaven 2y agoThat was my whole point. There are not 2^128 ipv6 addresses for Individual use but there are 2^64 /64 networks. If you rent a vps with a ipv6 “address” you will see that you are given a /64 network. There is no effort to “fix” the bottom 64 bits because it’s not needed. There are enough /56 networks to for the next 500 years and 99% of people can do everything they need with an isp provided /56. IPv4 has survived with 48 bit nat for this long so 64 bit is even more buffer space
- jeroenhd 2y ago> If you rent a vps with a ipv6 “address” you will see that you are given a /64 network. Unfortunately, I've seen multiple VPS providers that will assign you a single address within a /120 or something ridiculous like that. I presume whoever runs the network side of things with those VPS providers has never used IPv6 themselves or they must be _extremely_ stingy.
- cloudwalk9 2y agoMeanwhile my home ISP (Charter) will gladly give me a /60 if I set my router to ask for one.