Re: [Qemu-devel] Windows2012R2 virtio-win drivers and IPv6

[Peter Lieven]

Am 28.05.2015 um 16:24 schrieb Vadim Rozenfeld:
> On Thu, 2015-05-28 at 16:07 +0200, Peter Lieven wrote:
> > Hi,
> >
> > we observed problems with Windows Update Services and Uploading Files from a 
> > Windows System to other systems.
> > We tracked this down to IPv6 connections only. IPv4 and IPv6 in Receive 
> > direction seems to be not a problem.
> > It turned out that setting TCP/UDP Checksum Offloading for IPv6 from "RX/TX enabled" to 
> > RX "enabled" in the
> > Network Driver settings solved the issue. I remember similar problems existed 
> > with Linux some time ago.
> > Linux guests on the same host are also not an issue.
> >
> > Is this a known issue? I tried latest and stable drivers from the Fedora 
> > Website.
> Adding Yan.

Hi Yan,

have you had a chance to look at this or a hint where to start?

Thanks,
Peter