The log messages shown in the exhibit include the following key indicators:
local-nat=yes, peer-nat=no
NAT hole punching for peer at 192.2.0.1:4500
In the FCSS SD-WAN 7.6 ADVPN workflow, shortcut queries are always initiated by spokes, not hubs. A spoke sends a shortcut query to its hub when it detects traffic destined for another spoke. The hub’s role is to receive this shortcut query and forward the discovery information toward the destination spoke, enabling the two spokes to build a direct shortcut tunnel.
The device name in the log (HUB1-VPN1) and the presence of NAT hole punching coordination clearly indicate that this device is acting as a hub, not a spoke. Hubs do not form shortcuts themselves; instead, they facilitate shortcut establishment between spokes by relaying discovery and negotiation information.
Option A is incorrect because a spoke does not receive shortcut queries from other spokes directly.
Option B is incorrect because the log does not indicate that the shortcut has already been established; it shows the query and coordination phase, not completion.
Option D is incorrect because hubs do not initiate shortcut queries toward spokes.
Therefore, the correct description is that this device is a hub that has received a shortcut query from a spoke and has forwarded it to another spoke, which corresponds to option C.
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