Base Station - MRoboSub/mrobosub GitHub Wiki

Q: My roscore and other ROS commands are hanging on the base station!

A: The sub is set by default in environment variables to be the ROS master, which provides registration and naming services for the rest of the network. You should set the base station to be the ROS master. A convenient alias me (authored by Nolan Kuza) unsets the ROS_MASTER_URI and ROS_IP environment variables, setting the ROS master to be the base station.