Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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AFAIK iperf doesn't allow you to specify the ethernet device to use. You could muck around with iproute assigning different networks to different ethernet devices but if it's just a quick test you could run netcat (nc) as listener on one device and send with another netcat instance or telnet client from the other?