I was preparing lab environment to test configuration of Source-Specific Multicast on Juniper SRX Equipment and needed a tool to generate and measure Source-Specific Multicast streams.
I was aware that Iperf is a good enough tool to generate and measure multicast and unicast traffic but support for SSM was missing from current version. Fortunately there are always some developers which are interested in networking so one of them developed a special Iperf version 2.0.5 with SSM support.
The idea here is to show how to make this version of Iperf work on your Cent OS or similar Linux machine.
Here are few steps that should work from your Cent OS 6.8 Linux Server and hopefully from other similar distributions to: