Hi Yan, thanks for the reply.
* When you experience the issues is it between VMs on the same host?
I can reproduce it between a Windows VM on Host A and a Linux VM on Host B. Linux and Windows are not on the same host systems due to licensing. Between Linux VMs and/or if I download to the Windows VM there is no issue. Only outbound TCP traffic from the Windows vServer is affected and it only affects IPv6 traffic.
* Can you describe your host network configuration?
Windows VM on Qemu -> tap -> Linux Bridge -> eth (tagged) -> Network -> eth(tagged) -> Linux Bridge -> tap -> Linux VM on Qemu.
* Can provide the output for "ethtool -k” for every NIC (including tap devices) in the host that is involved with the VM that has a problem?
Offload parameters for tap4: rx-checksumming: off tx-checksumming: on scatter-gather: on tcp-segmentation-offload: off udp-fragmentation-offload: off generic-segmentation-offload: on generic-receive-offload: on large-receive-offload: off rx-vlan-offload: off tx-vlan-offload: on ntuple-filters: off receive-hashing: off Offload parameters for br136: rx-checksumming: off tx-checksumming: on scatter-gather: on tcp-segmentation-offload: off udp-fragmentation-offload: off generic-segmentation-offload: on generic-receive-offload: on large-receive-offload: off rx-vlan-offload: off tx-vlan-offload: on ntuple-filters: off receive-hashing: off Offload parameters for eth2: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp-segmentation-offload: on udp-fragmentation-offload: off generic-segmentation-offload: on generic-receive-offload: off large-receive-offload: off rx-vlan-offload: on tx-vlan-offload: on ntuple-filters: off receive-hashing: off
* What are the host kernel version, QEMU version and guest driver version you are using?
host: 3.13.0-53-generic qemu: 2.2.1 guest dirver: 0.1.100 Thank You, Peter
