Comment 10 for bug 1584042
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| Robie Basak (racb) wrote Re: IPV6 resolving fails via udp (not tcp) from other server | #10 |
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4d1350f
(Get the code!)
Please provide a single minimal set of steps to reproduce. Requiring two 16.04 VMs connected to each other would be ideal, with one server running bind and one server running dig that queries the server running bind over IPv6. Assuming that the two machines can communicate with each other over IPv6, tell me exactly what commands to type on each machine to install and set up bind and query using dig.
Before you post the instructions, please check that they reproduce the problem in your environment and confirm that you did this in your comment.
Also, it might be worth trying to reproduce without Hyper-V? Bad UDP checksums may be normal (it's a common optimisation) but may also be the problem. If it does affect Hyper-V only it still may be a bug in Ubuntu (for example in the kernel that handles the Hyper-V virtual NICs) but it would be useful to know, because I don't have Hyper-V here so will not be able to reproduce a Hyper-V-specific problem.