The obvious benefit of the VPN Auto Provisioning feature is ease of use. This is accomplished by hiding the complexity of initial configuration from the SonicOS/X administrator, similar to the provisioning process of the SonicWall Global VPN Client (GVC).
When using SonicWall GVC, a user merely points the GVC at a gateway; security and connection configuration occur automatically. VPN Auto Provisioning provides a similar solution for provisioning site-to-site hub-and-spoke configurations, simplifying large scale deployment to a trivial effort.
An added advantage is that after the initial VPN auto-provisioning, policy changes can be controlled at the central gateway and automatically updated at the spoke end. This solution is especially appealing in Enterprise and Managed Service deployments where central management is a top priority.