I am also on a 3B+
ubuntu@dns1:~$ cat /proc/device-tree/model Raspberry Pi 3 Model B Plus Rev 1.3 I dont believe you need anything fancy with IPv6, im not tunneling any v6 and its occurring with me. I do have IPv6 enabled on the interface used for tuneling. Hui Wang, im happy to provide a shell with remote access for you replicate and troubleshoot if required. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861936 Title: Raspberry Pi 3 network dies shortly after a burst of IPv6 tunnel network load ((lan78xx): transmit queue 0 timed out) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1861936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs