Final answer:
Enabling auto-discover-receiver on VPN spokes allows for automatic discovery of VPN endpoints, facilitating easy and dynamic configuration of the network.
Step-by-step explanation:
When the auto-discover-receiver option is enabled on spokes in a VPN setup, it signifies the capability for automatic receiver discovery. This means that the VPN devices (spokes) have the ability to dynamically identify other VPN endpoints (receivers) without manual configuration. In essence, the spokes can automatically detect the destination devices with which they need to establish a VPN tunnel.
This feature is crucial for simplifying the management of large VPN networks, where maintaining manual configurations for each pair of endpoints would be cumbersome and impractical. It can improve the scalability and flexibility of VPN networks by allowing the spokes to connect to the appropriate receivers as needed, often based upon the traffic they must forward.