I cannot run the tools in the Napatech Software Suite [Linux]
To use the tools in the Napatech Software Suite, you must have root privileges.
I cannot replay a capture file that was created using a commodity NIC [Linux]
Many commodity NICs have options to offload segmentation. If these options are enabled, a capture file may contain large frames exceeding the size that SmartNICs with Napatech Software Suite will handle (10000 bytes).
$ sudo ethtool -K eth0 tso off $ sudo ethtool -K eth0 ufo off $ sudo ethtool -K eth0 gso off $ sudo ethtool -K eth0 gro off $ sudo ethtool -K eth0 lro off
Do you use Wireshark to create capture files? Edit->preferences->Protocols->ipV4-> and uncheck "Reassemble fragmented IPv4 datagrams".
If a SmartNIC with Napatech Software Suite is available on the host, consider using the ntpcap_capture tool.