Fatal Error: failed to open device ens1f1: Failure accessing netmap.

[KatherineJXY]

r6@r6-PowerEdge-R740:~$ sudo tcpreplay --netmap -M 3000 -i ens1f1 /home/r6/scripts-bk/trace/univ1_trace/*
Switching network driver for ens1f1 to netmap bypass mode...
Fatal Error: failed to open device ens1f1: Failure accessing netmap.
        Request for netmap version 14 failed.
        Compiled netmap driver is version 14.
        Error=Invalid argument

I have tried multiple versions of both tcpreplay and netmap, however, I got the same answer.

More info:

r6@r6-PowerEdge-R740:~$ uname -a
Linux r6-PowerEdge-R740 5.15.0-78-generic #85~20.04.1-Ubuntu SMP Mon Jul 17 09:42:39 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
r6@r6-PowerEdge-R740:~$ tcpreplay -V
Warning: May need to run as root to get access to all network interfaces.
tcpreplay version: 4.4.4 (build git:v4.4.4)
Copyright 2013-2022 by Fred Klassen <tcpreplay at appneta dot com> - AppNeta
Copyright 2000-2012 by Aaron Turner <aturner at synfin dot net>
The entire Tcpreplay Suite is licensed under the GPLv3
Cache file supported: 04
Not compiled with libdnet.
Compiled against libpcap: 1.9.1
64 bit packet counters: enabled
Verbose printing via tcpdump: enabled
Packet editing: disabled
Fragroute engine: disabled
Default injection method: PF_PACKET send()
Optional injection method: netmap

[KatherineJXY]

r6@r6-PowerEdge-R740:~/Downloads/netmap/apps$ sudo pkt-gen -i ens1f1 -f tx -b1 -l 1400
618.605778 main [3036] interface is ens1f1
618.605877 main [3167] running on 1 cpus (have 20)
618.606304 extract_ip_range [477] range is 10.0.0.1:1234 to 10.0.0.1:1234
618.606317 extract_ip_range [477] range is 10.1.0.1:1234 to 10.1.0.1:1234
ens1f1: Invalid argument
618.607837 main [3335] aborting

I got the same error when I used pkt-gen to generate packets.

[ChuckCottrill]

I have recently compiled and ran tcpreplay on both Ubuntu and Rocky Linux.
Have you tried with other versions of tcpreplay? Have you tried building on a different OS?
This may be a problem with your network driver and not specifically tcpreplay.
Have you tried installing and running either wireshark or tcpdump?
I do not have a PowerEdge system to try to replicate your issue.

[KatherineJXY]

I have recently compiled and ran tcpreplay on both Ubuntu and Rocky Linux. Have you tried with other versions of tcpreplay? Have you tried building on a different OS? This may be a problem with your network driver and not specifically tcpreplay. Have you tried installing and running either wireshark or tcpdump? I do not have a PowerEdge system to try to replicate your issue.

Yes, it seems like this problem comes from netmap. I can use tcpreplay to send packets without netmap. I changed the network driver from mlx5 to ice, and it can work well now.