Just to make sure, this is not necessarily a problem of Fast-RTPS. I was giving the link to the issue because it also shows you the steps needed to enable multicast on the lo device. --- [Visit Topic](https://discourse.ros.org/t/no-communication-if-no-gateway-is-set/2915/9) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: