pktgen example not working with Intel X540-AT2

[twominutesalad]

Hey @emmericp - firstly, thanks for building this great tool! I initially ran libmoon in a VirtualBox VM to get familiar with it.

Next I picked up some Intel X540-AT2 10 GbE NICs to use with it. After building libmoon I attempt to run the pktgen example, which results in no TX rate being reported.

I ran Wireshark on the machine packets were being sent to, and it appears none are being sent. Interesting, if I enable ARP in the pktgen example, I can see that the example is sending out an ARP request and is receiving a response from the remote machine.

I apologize if I have missed something obvious! Any advice is greatly appreciated. Picture attached for reference:

[lockkkk]

Is there any update on this? I am facing the same issue...

[emmericp]

this is sometimes an IOMMU problem if you are running with iommu enabled; try either using vfio-pci as driver for the NIC or disabling the iommu using iommu=off on the kernel command line