Implementing Cisco Network Security (IINS v3.0) (#93)

What is the only permitted operation for processing multicast traffic on zone-based firewalls?

Only control plane policing can protect the control plane against multicast traffic.
Stateful inspection of multicast traffic is supported only for the self-zone.
Stateful inspection for multicast traffic is supported only between the self-zone and the internal zone.
Stateful inspection of multicast traffic is supported only for the internal zone.