Unable to see ROS master from field computer

Original report (archived issue) by Víctor López (Bitbucket: Victor Lopez).

I've been trying to contact the ROS master from the field computer without success.

I have logged into the simulator computer and I can see it running there, and I can list the available topics.

But from the field computer, i cannot ping, or contact the master in any way.

When I launch my docker manually using this script: https://bitbucket.org/osrf/cloudsim-sim/src/1359f1c9d1b2f2fc967887a38f6f3f3faaa4ec61/src_commands/fc_run_team_docker.bash?at=default&fileviewer=file-view-default My code crashes with:

ERROR: unable to contact ROS master at [http://192.168.2.1:11311]
The traceback for the exception was written to the log file

I cannot ping that ip either:


ubuntu@ip-172-31-17-160:~/startup$ ping 192.168.2.1
PING 192.168.2.1 (192.168.2.1): 56 data bytes
92 bytes from ip-192-168-2-8.us-west-1.compute.internal (192.168.2.8): Destination Host Unreachable
92 bytes from ip-192-168-2-8.us-west-1.compute.internal (192.168.2.8): Destination Host Unreachable
92 bytes from ip-192-168-2-8.us-west-1.compute.internal (192.168.2.8): Destination Host Unreachable

osrf / srcsim

Unable to see ROS master from field computer #225