Localhost configuration with MicroROS and CycloneDDS

I'm working with CycloneDDS for ROS2 Humble and I'm trying to use the ROS_LOCALHOST_ONLY variable (or another localhost configuration) with MicroROS. While it worked with FastDDS, I haven't been able to establish communication between the agent and the ROS system using CycloneDDS, even though both are running on the same machine.

The (serial) connection between the agent and the microcontroller is successfully established, and all instances (subscribers, publishers, etc.) are created without issues. However, the topics are not visible in any other terminal on the machine.

Everything run on Ubuntu22/Jetpack6.

Is there an option to enable this configuration or will it be included in the future?

Empieza revisando cómo se configuran ROS_LOCALHOST_ONLY y CycloneDDS para el agente micro-ROS, comparando la configuración indicada con el caso funcional de FastDDS. Reproduce la configuración de Ubuntu 22/Jetpack 6 y comprueba si los temas del agente son visibles desde otra terminal; se considera terminado cuando la comunicación localhost funciona con CycloneDDS o se documenta la limitación admitida.

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