Raspberry Pi 1 B+ IPv6 troubleshooting
Raspberry Pi 1 B+ IPv6 troubleshooting
It's a raspberry Pi that needs IPv6 support. The Lubuntu version installed on your laptop was set up for testing only. When you view /etc/network/interfaces, this file is used by ifup and ifdown commands. Keep in mind it's meant to work with dhcpcd. For a static IP, check /etc/dhcpcd.conf and the man page. No network plan exists in /etc/netplan. The ISP provides an IPv6 block size of /64.
It seems there might be some confusion about the setup. DHCP is designed to provide necessary information automatically, and enabling it should cover most needs. You mentioned reserving an IP in the router, which is a good step. If you're still missing information, it could be due to network configuration or device-specific settings. Let me know how you'd like to proceed!
Netplan appears to be the current standard in Ubuntu, though Debian 10 continues using ifupdown. Likely Raspbian follows suit. Could you test "ping6 google.com" on your Pi? You mentioned successfully enabling IPv6 on your own Pi-hole without extra setup, and you confirmed seeing the proper IPv6 prefix in your output.
@Eigenvektor ping6 google.com shows: connect: Network is unreachable. I attempted to set up pi-hole on an Android TV box running Armbian, but the OS feels very shaky. I didn’t bring it up since after a week it crashes by itself, even though only Pi-hole is active. On that device I have an IPv6 link, but it uses Ubuntu 18.04 with lightweight interfaces—way too unstable for reliable use. This is puzzling on a Raspberry Pi OS, but I need to understand what’s going on.
I don't have a RasPi here to test, unfortunately. My Pi-hole is running on Debian 10 on a mini-itx system (that doubles as a NAS of sorts). I've found a post that says auto-configuration of IPv6 is disabled on RasPi by default, you may need to add the following to /etc/sysctl.conf: net.ipv6.conf.all.accept_ra=1
It’s not going well either way—I’m planning to gradually move away from Raspberry Pi and instead concentrate on setting up a Linux-based PC for server use, with Pi-hole as an optional addition. I believe it’s not worth the effort and time, especially with an outdated Raspberry Pi 1 that struggles with basic tasks. Thanks for your support, but I think we should cut back on energy consumption.