different Oses have different default for this broadcast flag(Linuxes set it to zero so the server replies are unicast,Windows operates differently per version and cisco sets it to 1 so server can broadcast). Some OSes wouldn't accept unicast packet to an IP that they had still not obtained so that's why they set the broadcast flag to 1.

Compared with Unicast traffic, Multicast offers scalability and does not require nameservers. Broadcast Broadcast sends a message to every node in a network that is associated with the broadcast address. The network automatically will make as many exact copies of the message as needed to cover all nodes included in the broadcast scope.

9/13 · Compared with Unicast traffic, Multicast offers scalability and does not require nameservers. Broadcast Broadcast sends a message to every node in a network that is

Traditional Multicasting of video data helps to lower resources used on an Enterprise network. This involves an encoder configured to stream video to a defined Multicast address ( 224.0.0.0

In unicast communication, a device communicates or shares data with one device only. In multicast communication, a device communicates or shares 

1. unicast addresses Unicast addresses represent a single LAN interface. A unicast frame will be sent to a specific device, not to a group of devices on the LAN: The unicast address will have the value of the MAC address of the destination device. 2. multicast addresses Multicast addresses represent a group of devices in a LAN.

Multicast uses UDP (User Datagram Protocol) for “broadcasting” a stream over a closed IP network such as a LAN (Local Area Network) or an IP 

Multicast vs. Broadcast vs. Anycast vs. Unicast · Computer networks enabled several devices to communicate with each other across the world. · The 

10/5 · Unicast is a one to one communication from one source to one destination (one sender to one receiver). Multicast streaming Multicast transmission is a one-to-many broadcast methodology between multiple decoders and the source.

The operator will actually connect to a multicast IP address of the video stream which is shared amongst all users. So the IP camera only sends a single copy of the video stream using its designated multicast IP address and the destination simply connects to the stream available over the network. As mentioned, there are pros and cons to each.

Broadcast is known as one-to-all. Multicast With Multicast, the sender will send traffic to a group of hosts as following: As you can see, the server is sending Multicast, and only 2 PC’s