By default routers pass Broadcast traffic from one network to another network.

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By default routers pass Broadcast traffic from one network to another network.

Broadcast traffic is intended for all devices on a single local subnet. Routers connect different networks and, by design, do not forward broadcast or multicast frames across network boundaries. They forward traffic based on the destination IP, which is unicast. If a device on one network sends a broadcast, a router will not replicate that to other networks, preventing floods across the inter-network path. There are exceptions, such as DHCP relay (ip helper-address), which can forward specific broadcast requests to a server on another network by converting them to unicast, but that requires explicit configuration. Therefore, the statement that routers pass broadcast traffic from one network to another by default is not correct.

Broadcast traffic is intended for all devices on a single local subnet. Routers connect different networks and, by design, do not forward broadcast or multicast frames across network boundaries. They forward traffic based on the destination IP, which is unicast. If a device on one network sends a broadcast, a router will not replicate that to other networks, preventing floods across the inter-network path. There are exceptions, such as DHCP relay (ip helper-address), which can forward specific broadcast requests to a server on another network by converting them to unicast, but that requires explicit configuration. Therefore, the statement that routers pass broadcast traffic from one network to another by default is not correct.

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