Hi Nupur,
A possible reason that you are not able to communicate between MATLAB and ROS2 container is that these two systems might be on two different subnets.
Please consider the following points related to ROS2 and for possible workaround:
- In ROS 2, there is no master, so each node has to act as its own master. Because of this, it is a little harder to define exactly where a "network" boundary is. For ROS 2, an entity's network is defined instead by both its subnet and its domain ID.
- Generally, If the two systems that want to communicate, but aren't on the same subnet. You can explicitly make them available to each other by creating the DEFAULT_FASTRTPS_PROFILES.xml file. In this put both the host machine's IP and the container IP in this file, and put this file on both systems.
- Please make sure that the .xml file has the correct DomainID that they will be using for communication.
- If a system has multiple network interfaces, you may have to experiment to determine which one ROS 2 is using for communication. It also probably cannot hurt to just put all associated IDs down in the file, get communication working, and remove what if unnecessary.
Hope it helps!
