3 ms·
They should be giving you a /56 or a /48 though, since you're not supposed to subnet a /64.
by CorrectHorseBat 3y ago
They should be giving you a /56 or a /48 though, since you're not supposed to subnet a /64.
- viraptor 3y agoThis is now so common, I expect the common software to adjust soon. You can still subnet below /64 with some patching or a more complex config. Software will match reality it exists in - we already did that for classless ipv4 https://en.m.wikipedia.org/wiki/Classless_Inter-Domain_Routing https://en.m.wikipedia.org/wiki/Classless_Inter-Domain_Routi...
- CorrectHorseBat 3y agoWhy though? Classless ipv4 solves a real problem, handing out /64's not
- wongarsu 3y agoIs not subnetting /64 solving a real problem? Obviously we couldn't subnet it back when we derived the last 64 bits from the MAC address. But since then everyone decided that's a bad idea, so why not use the address space?
- viraptor 3y agoIt's the other way around. Handing out /64 is the problem, but you and I can't solve it - that's the ISPs stupid decision. People will continue solving this by making smaller subnets and I believe this will become an official solution in the future, because smaller subnets solve a real (even if artificially created) problem.
- aidenn0 3y agoI think I can reconfigure DHCPv6 for a /56 (IIRC I need to talk to a person if I want a /48) but I only currently have one network at home, so shrug.
- MaximilianEmel 3y agoI've found that even if the default is a /64, when you send a /48, /56, or /60 etc. DHCPv6-PD prefix-length hint, the ISP will often give it to you.