1. N

    vmxnet3 vNIC and ARP filtering

    I was troubleshooting an issue with two VMs that use CARP to perform IP fail-over. I had disabled MAC filtering on these VMs, but the ARP responses for virtual IPs were never sent from the VMs. I saw somewhere that there may be limitations in ebtables or iptables when using a non-virtio vNIC...
  2. C

    vmxnet3 MTU bug? Patch available?

    I am working with nested ESXi 7.0, which I have found is only compatible with the vmxnet3 NIC. When powering on the VM, it eventually crashes quick enough that it doesn't even fully boot and I see this event in syslog: QEMU[1560506]: kvm: ../hw/net/vmxnet3.c:1444: vmxnet3_activate_device...
  3. T

    VirtIO NIC checksum fail & poor speed

    Hey all, I have a 3 node cluster (6.0.4) each with dual 10Gb Intel NICs. On both Windows and CentOS 7.x VM's I have VirtIO 10Gb networking installed. I have zero issues with Windows. On CentOS I find that any files that are moved to/from a network share fail checksum. There also seems to be...
  4. B

    OsX VM unable to write data to NAS properly

    Hi everyone, I am at an impass. After several iperf3 tests and Blackmagic write/reads, I realized all connections work fine from all the computers at home, except uploads/writes from my Macintosh VM to the NAS (freenas). As you will see below, I've ran tests from all points (Proxmox node...


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