When using Air for Cellular devices, Funnel can be combined with the Private Garden option to provide greater device security.
By default, Air for Cellular devices will connect to the Soracom platform using a platform-shared gateway which allows Air devices to access the Internet as well as Soracom services (such as Beam, Funnel, Funk, and Harvest).
Soracom provides an alternative shared gateway called Private Garden, which still allows Air devices to access Soracom services, but will block device access to the Internet.
Setting an Air SIM group to use Private Garden will help ensure that no data is mistakenly sent to an unknown endpoint. As groups using Private Garden can still access Soracom services, you can configure Funnel to forward data from your devices to your cloud service.
Refer to Private Garden for further information.