Broadcasting
Broadcast [11, 12] is a type of transmission where data
sent by one host is received by every host present in the
network as shown in Fig 4. Taking the case of Dynamic
Host Configuration Protocol in which when a system boots
up and requests for an IP from DHCP server which system
is not aware of so it broadcasts the request of an IP
throughout the network. It is used to send same message to
all computers in LANs, e.g. Address Resolution Protocol
(ARP) uses this technique to send an address resolution
query to all. Most routers designed these days’ blocks IP
broadcast traffic and restrict it to the local subnet.