I have installed the app Streams on Splunk 6.1.3 with Centos 64, everything looks like the app is working but i can only see the activity of localhost.
I have checked the filters and there isn't any filter.
The TA and the APP are in the same server (indexer).
App for Stream can only see traffic for the network devices available on the same host machine. You may want to try using the <Interface> or <InterfaceRegex> configuration parameters in streamfwd.xml to make sure it's capturing traffic from all of the available devices. See "Use XML Capture element to specify network interfaces" for more information.