InSmartZone,Generic Routing Encapsulation (GRE) tunnelsare used to encapsulate client traffic and forward it to a remote gateway, typically for security or centralized routing.
As described inRUCKUS One Online Help – GRE Tunneling Configuration, a tunnel profile becomes available for WLAN association only when it is explicitlylinked to an AP Zone. This ensures that all APs in the zone can apply the correct tunnel endpoint and keying parameters.
If a GRE profile is not mapped to a zone, it will not appear in theWLAN configuration dropdown, even if successfully created.
Other options are incorrect because SmartZone supports GRE for WLANs by design, split-tunnel profiles are optional, and tunnel count limitations are far higher than typical enterprise use.
[References:, RUCKUS One Online Help – GRE Tunnel Profile Configuration and Zone Binding, RUCKUS Analytics 3.5 User Guide – Tunnel Status and Performance Metrics, RUCKUS AI Documentation – GRE Tunneling Architecture and Troubleshooting, , , ]
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