COMPUTER NETWORK AND SECURITY
INTRODUCTION TO COMPUTER NETWORK
PHYSICAL LAYER
DATA LINK LAYER
NETWORK LAYER
Transport Layer
Multiple Choice Question
Application Layer
Network Security
Multimedia and Future Networking
COMPUTER NETWORK LAB WORK
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1. Unicast Address:

A unicast address is used to identify a single network interface. When a device sends data to a unicast address, it is intended for a specific recipient. Unicast addresses are the most common type of addresses in IP networking.

  • Example Unicast IPv4 Address:
    • 192.168.0.1 - This address identifies a specific device on a network, such as a computer or a printer.

2. Multicast Address:

A multicast address is used to identify a group of devices. When data is sent to a multicast address, it is intended for multiple recipients who are part of the multicast group.

  • Example Multicast IPv4 Address:
    • 224.0.0.1 - This is the "All Hosts on this Subnet" multicast address. Devices on the same subnet can join this group to receive multicast traffic.

3. Broadcast Address:

A broadcast address is used to send data to all devices on a network segment. In IPv4, the concept of broadcast is widely used, but in IPv6, broadcast has been replaced by multicast.

  • Example Broadcast IPv4 Address:
    • 192.168.0.255 - This address is often used as a limited broadcast address on a specific subnet. When data is sent to this address, it is intended for all devices on the same subnet.

Additional Note:

In IPv6, the concept of broadcast is replaced by multicast. IPv6 no longer has a dedicated broadcast address, and multicast addresses are used for similar purposes.

  • Example Multicast IPv6 Address:
    • ff02::1 - This is the "All Nodes on the Local Link" multicast address in IPv6. Devices on the same link-local network can join this group to receive multicast traffic.

 

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