Which restriction applies when configuring a tunnel interface?

When configuring a tunnel interface using vManage feature templates, the IP address must be assigned manually. This is because vManage templates provide a structured way to apply configurations, and specific interface IP addresses are unique to each device and cannot be automatically generated or templated in a generic way across multiple devices. The other options are incorrect: There is no specific restriction of "up to six tunnel interfaces" on a vSmart controller; vSmart controllers typically do not terminate data plane tunnels in the same way WAN Edges do. Tunnel interfaces are not configured "under all VPNs for the interface"; rather, they are associated with specific VPNs (e.g., VPN 0 for transport) or services. There is no specific restriction of "up to six tunnel interfaces" on a WAN Edge; the number of tunnel interfaces can vary based on the platform and design requirements.