Frédéric, Thank you. This is clear to me now. As it's a driver issue, I'm reassigning to the kernel package. The kernel team will probably need more information about your (virtual) hardware and will want you to test the latest upstream kernel version or similar.
** Summary changed: - IPV6 resolving fails via udp (not tcp) from other server + Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled ** Package changed: bind9 (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1584042 Title: Hyper-V NIC cannot pass IPv6 UDP packets by default until protocol offload is disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1584042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs