I want to send the position data of six optitrack cameras to Ros, I use vrpnclientros package, in motive I have the vrpn broadcast frame an ip (239.255.42.99) and a port (3883). I have turn off the window Firewell.

Then when I run the launch file (roslaunch vrpnclientros sample.launch server: = "239.255.42.99") the following message appears:

Roslaunch vrpn_client_ros sample.launch server: = "239.255.42.99"
... logging to /home/mario1577/.ros/log/f640a4d4-29f1-11e7-a77e-c85b7638df65/roslaunch-MarioPC-10141.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

Started roslaunch server http: // MarioPC: 42808 /

SUMMARY
========

PARAMETERS
 * / Rosdistro: kinetic
 * / Rosversion: 1.12.7
 * / Vrpn_client_node / broadcast_tf: True
 * / Vrpn_client_node / frame_id: world
 * / Vrpn_client_node / port: 3883
 * / Vrpn_client_node / refresh_tracker_frequency: 1.0
 * / Vrpn_client_node / server: 239.255.42.99
* / Vrpn_client_node / update_frequency: 100.0
 * / Vrpn_client_node / use_server_time: False
    Vrpn_client_node (vrpn_client_ros / vrpn_client_node)

ROS_MASTER_URI = http: // localhost: 11311

Found
Process [vrpn_client_node-1]: started with pid [10159]
[INFO] [1493154814.380624240]: Connecting to VRPN server at 239.255.42.99:3883
[INFO] [1493154815.382072725]: Connection established

The problem is when I want to put the list of topics does not appear the Publish Topic: / pose

Why can't I receive the position data?

Do I have to do a configuration on my pc ubuntu? (I am noob in ubuntu)

In my lab I have six optitrack cameras, two pc (WINDOWS and Ubuntu) and a iris drone.

The two PCs is connect with ethernet cable. My main goal is to send the position data of the cameras to the pixhawk of the iris.

Regards!!