Hi back. I (really) quickly set up 2 virtual machines on my HyperV cluster. Each With ubuntu OOB iso image, one in 15.10, one in 16.04. No extra setup, only ipv6 adresses. I attached the result. I'll post some tcpdump in a few minutes
** Attachment added: "Screen capture of both servers" https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1584042/+attachment/4670255/+files/Capture%20d%E2%80%99%C3%A9cran%202016-05-25%20%C3%A0%2017.42.20.png -- 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: IPV6 resolving fails via udp (not tcp) from other server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1584042/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs