Topic appearing on rostopic list but not publishing to remote node

[mitch-galea]

System consists of 3 computers: A:

• robot
• running ros master on 192.168.*.4
• connected to B via ethernet, IP: 192.168.*.4

B:

• laptop
• connected to A via ethernet, IP: 192.168.*.1
• running master_discovery on with ROS_MASTER_URI 192.168.*.4 sourced
• running ros master on 10.137.*.1
• connected to B on separate wifi, IP: 10.137.*.1
• running master_discovery on with ROS_MASTER_URI 10.137.*.1 sourced
• ROS network with master 10.137.*.1 can echo topics published by A on separate ROS Network

C:

• laptop
• connected to B via wifi, IP: 10.137.*.2
• can see topic published by A but cannot echo the topic

I have tried with enabled sync_remote_nodes and this has not helped Any suggestions

[atiderko]

The multimaster package only synchronizes the entries in the ROS master. The connection between the topics is established by the ROS system itself. So if you can't ping A from the C, ROS nodes won't be able to connect either.