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gazebo sim: Exception sending a multicast message:Network is unreachable #301

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gazebo sim: Exception sending a multicast message:Network is unreachable#301

Description

@MMarcus95
MMarcus95
opened on Mar 24, 2026

Error happening sometimes when launching the simulation or while simulating. Need further investigation
related issue: gazebosim/gz-sim#1879
fix (not work when unplugging cable): https://docs.ros.org/en/rolling/How-To-Guides/Installation-Troubleshooting.html#enable-multicast

Activity

  1. MMarcus95 commented on Mar 24, 2026

    @MMarcus95
    MMarcus95
    on Mar 24, 2026
    ContributorAuthor

    Seems related to gazebo transport.

    FIXED ONCE SETTING THIS ENV VARIABLE

    export GZ_IP=127.0.0.1

    added this export in the wiki

  2. MMarcus95
    closed this as completedon Mar 24, 2026
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