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**To update connectivity information for a Greengrass core device** The following ``update-connectivity-info`` example gets the connectivity information for a Greengrass core device. Client devices use this information to connect to the MQTT broker that runs on this core device. :: aws greengrassv2 update-connectivity-info \ --thing-name MyGreengrassCore \ --cli-input-json file://core-device-connectivity-info.json Contents of ``core-device-connectivity-info.json``:: { "connectivityInfo": [ { "hostAddress": "192.0.2.0", "portNumber": 8883, "id": "localIP_192.0.2.0" } ] } Output:: { "version": "a1b2c3d4-5678-90ab-cdef-EXAMPLE11111" } For more information, see `Manage core device endpoints <https://docs.aws.amazon.com/greengrass/v2/developerguide/manage-core-device-endpoints.html>`__ in the *AWS IoT Greengrass V2 Developer Guide*.