[ros-users] [Discourse.ros.org] [Next Generation ROS] No communication if no gateway is set

[karsten]

Slightly related to this, you may want to make sure that multicast is
enabled on your NIC. I've noticed that on some Linux machines even the
local communication doesn't work wo/ the multicast being explicitly
activated on the loopback adapter.
See here: https://github.com/eProsima/Fast-RTPS/issues/63





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