Re: [tlug] IPoE and IPv6

[aeseinohki@??]

I'm also on BIGLOBE's 10G plan and they *only* provide IPv6 issued via IPoE with MAP-E for IPv4. PPPoE is only available on the lower bandwidth plans. I'm getting a /56, which I split into isolated /64 networks.

FWIW, the Turris Optima NG will let you saturate a 10G link *over WiFi*. It's the only OpenWRT router I found capable of that right now, but it's also a tad pricey.

2026年4月23日 8:28:33 JST、Tod McQuillin <devin@sevenlayer.studio> より:
>Greetings TLUG,
>
>I have been researching ISP options in Japan, and it seems there are basically two provisioning methods when using NTT フレッツ光ネクスト:
>
>* PPPoE
>* IPoE
>
>While some ISPs do offer IPv6 over PPPoE, it's clearly a legacy technology on its way out, and IPoE looks like the future with its native IPv6.
>
>However, as I look more into it, I'm starting to realize that getting more than a single /64 of IPv6 address space via IPoE is ... let's just say needlessly complicated.
>
>I've learned from my research that unless you have ひかり電話, NTT's network will not even offer DHCPv6 prefix delegation, making it impossible to get more than a /64 of space since you can't request it.
>
>If you *do* have ひかり電話 then you are most likely using a NTT provided HGW (ONU + router) and the HGW, although it can request and receive a /56, *still* only advertises a /64 to the locally connected network.
>
>Does this situation sound familiar to you guys?
>
>Has anyone got a way to reliably get a /56 via IPoE?
>
>I'm starting to think that the only way to reliably get a /56 is to use PPPoE which kind of sounds crazy ... but then again, welcome to Japan.
>
>Thanks for any good info you can provide.
>
>Tod