If on Instreamer is not running Instreamer Standard firmware, please download it from here and install.
To stream to target 192.168.0.1 on port 3030 set as below on Configuration page.
Only the audio coming from Left Input (white RCA connector) will be streamed.
On Home page you've to see as below.
Note, for the Instreamer is also a special firmware available which is optimized for G.711 8 kHz streaming, this is available only on request !