I know a broadcast IP address is used to send a packet to all the machines in a subnet. But I can't find any real world example for this usage. Can you provide an example?

1 Answer 1


There's lots of reasons. One is a DHCP request, but that's sent to (as opposed to in the case of a network). Another example would be if a device is looking for other devices running something. For example, Windows old-school NetBIOS broadcasts on UDP 137 and 138 looking for names. That uses in my example subnet.

Not the answer you're looking for? Browse other questions tagged .