Policy-Based VPN Creation Using Shared NAT Objects Overview
For VPNs that support policy-based NAT, you must create one or more shared NAT objects. A shared NAT object contains references to device-specific NAT objects, enabling multiple devices to share a single object.
First, create a device-specific NAT object by editing the device configuration of each security device member. Then, create a global NAT object that includes the device-specific NAT objects. In the Object Manager, create a single shared NAT object to represent similar device-specific NAT objects (for example, a global DIP represents multiple device-specific DIPs). Use the global NAT object in your VPN; when you install the VPN on a device, that device automatically replaces the shared NAT object with its device-specific NAT object.
For details on shared NAT objects, see the Network and Security Manager Administration Guide.