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Does anyone know of a command line based traffic generator which can produce IP traffic so that we cant test QOS feature on DSL modem . It would be good if we can set the dscp marking in the IP packet .

Curently we are using Iperf but we can't set the dscp marking .

Regards, Mithun

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up vote 3 down vote accepted

Packgen says it supports the DSCP that you reqaire:

Scapy is another:

here is a nice list of generators/tools:

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+1 for mentionning scapy because it is a great learning tool, but it may not be able to generate a fairly high amount of trafic if needed. – Maxwell Jan 11 '10 at 8:04
anything as windows executable ?? – user26202 Jan 11 '10 at 8:11
The ruby interpreter is your windows executable. You will just create a ruby script that does the packgen business then run it. – davey Jan 11 '10 at 8:25

iperf - measure network performance

Pretty much the standard tool, imo

windows exe:

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