What does CIDR notation enable in Scapy when specifying destinations?

• A. Send to a single IP
• B. Send to multiple targets in a subnet
• C. Filter by port
• D. Set route for packets

Answer: (B)

CIDR notation defines a subnet as a range of IP addresses that share a common network prefix. When you specify a destination in Scapy with CIDR, you’re indicating that the operation should apply to all addresses within that subnet, not just a single host. In practice, you expand the CIDR range and send packets to each address in that range (for example, 192.168.1.0/24 covers 192.168.1.1 through 192.168.1.254). This is useful for tasks like network discovery or subnet scans. It isn’t about filtering by port or about setting a route—port filtering happens at the transport layer, and routing is handled by the OS routing table.