What is a directed broadcast?
Directed broadcasts are packets that are sent from one system on a foreign network to all systems on another network. Directed broadcasts are the basis for the “smurf” attack where forged ICMP packets are sent from a host to the broadcast address of a remote network.
What is IP Directed broadcast Cisco?
An IP directed broadcast is an IP packet whose destination address is a valid broadcast address for some IP subnet but which originates from a node that is not itself part of that destination subnet.
What is the directed broadcast address?
directed broadcast address: An Internet Protocol address that specifies “all hosts” on a specified network. Note: A single copy of a directed broadcast is routed to the specified network, where it is broadcast to all terminals on that network.
How does IP directed broadcast work?
An IP directed broadcast is a datagram sent to the broadcast address of a subnet that is not directly attached to the sending machine. The directed broadcast is routed through the network as a unicast packet until it arrives at the target subnet, where it is converted into a link-layer broadcast.
What is the use of IP directed broadcast?
–> IP directed broadcast basically used in wake-on-LAN (WOL) application by forwarding broadcast packets targeted at the hosts in a specified destination subnet. –> IP directed broadcast packets are sent over the network in the same way as unicast IP packets until they reach the destination subnet.
What is directed broadcast address?
directed broadcast address. directed broadcast address: An Internet Protocol address that specifies “all hosts” on a specified network. Note: A single copy of a directed broadcast is routed to the specified network, where it is broadcast to all terminals on that network.
What is IP broadcast?
A broadcast IP is an IP address which contains all ‘1’ digits in the host portion of the network number. When a packet is sent to the broadcast IP, all of the computers on that subnet will receive the packet.
What is a broadcast IP address?
A broadcast IP is a special, reserved address used to send to all IP devices on a Local Area Network, and there is a special IP address reserved for it: 255.255.255.255 for IPv4 (though it was historically 0.0.0.0). Broadcasting is convenient, but very resource wasteful.
