This issue could exist since a long time. Having only 3 servers, each nameserver, did hide the problem (as each could resolve) In my numerous tests, I made a virtual machine using an old Ubuntu server 15.04 and the problem was present. But,in the meanwhile, my bind server was having troubles (rx/tx activated). So I don't know if its due to 15.04 or the production bind server
I'll try to test on the upstream build as soon as possible. I'll tell you -- 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