Outlines the core concept of IP directed broadcast, providing foundational understanding for its use cases, operation, and configuration considerations in networking environments.
An IP directed broadcast is a type of IP packet that
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has a destination address that is a valid broadcast address for a specific IP subnet but originates from a node outside that subnet, and
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is forwarded by devices not directly connected to the destination subnet in the same way as unicast IP packets.
The WAN edge device rewrites the destination address in the IP header of the packet to the configured IP broadcast address for the subnet, and then sends the packet as a link-layer broadcast.
The access control list (ACL) option for directed broadcast is not supported in Cisco SD-WAN Manager.