Command line based IP traffic generator

ipiperfnetwork-traffic

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

Best Answer

Packgen says it supports the DSCP that you reqaire:

http://packgen.rubyforge.org/files/README.html

Scapy is another:

http://www.secdev.org/projects/scapy

here is a nice list of generators/tools:

http://www.protocoltesting.com/trgen.html