[kalleboo]

Yeah in Japan my ISP even lets me choose which IPv4 provider I want to use, as the fiber network is IPv6-native and IPv4 is "just another service" like IPTV.

[lxgr]

Wow, that’s very cool! Do you know how that works? Do they just connect you to a NAT64 gateway of your choice?

[kalleboo]

IPv4 is provided using DS-Lite or MAP-E depending on the provider.

I'm using OpenWRT and paid for a static IP so I had to manually configure all the details for the MAP-E tunnel in OpenWRT myself, I think typically the routers sold to consumers pick up the configuration automatically somehow.

[usui]

Which provider are you using? I'm curious about this since there are not many OpenWrt guides for getting connected in Japan. Is your config similar to this write-up? https://github.com/fakemanhk/openwrt-jp-ipoe

I didn't need to do any configuration for DS-Lite or MAP-E, as DHCPv6 with a configured prefix got IPv6 working, although DNS is still broken when turning off IPv4 entirely.

[kalleboo]

I'm using en hikari on Flets Cross (10 gigabit) with v6plus.

I set it up like 2 years ago but this was in my bookmarks: https://zenn.dev/ebi68k/articles/6df7cfec64c281

edit: looking this all up again to refresh my memory, it looks like with my static IP the provider switches from using their default MAP-E to using RFC2473 directly instead, the configuration matches "IPIP" in this guide https://qiita.com/kouhei-ioroi/items/cf0c6228c5c1faef415a

[lxgr]

Woah, MAP-E allows static v4 (and presumably inbound connections)? That seems neat and much better than DS-Lite!

[kalleboo]

I'm re-learning this right now since I kind of just set it and forgot it 2 years ago but while my provider typically uses MAP-E it looks like when you use a static IP it switches to using RFC2473 (IPIP6) directly without the extra port mapping that MAP-E adds ontop