Chathuni Thilakarathne

IP address classes and Subnet mask An  IP address  is a unique identifier or numeric label used to identify devices connected to the network. This helps to develop a virtual connection between source and destination for packet communication in networking. As we develop the network, we consider the scale, the number of devices connected to the network, and other requirements. That IP address space is divided into 5 classes and then we can get a better idea of ​​the range we need to use when we need to build a network. Class A Class B  Class C  Class D Class E Important Dividing IP address space (2 * 32 no. of IP addresses) into 5 classes is called  Classful addressing . In this concept, the number of hosts for each class is fixed. We use the concept of  Classless Inter-Domain Routing (CIDR)  concept because of the limitations of classful addressing. Before short note IP classes are identified by the 1st octet of the IP address (left most from all)....

I n today’s world, many devices are connected as a network to carry out workflows. To identify devices on the network, each device must have a unique identifier. This uses the IP address or Internet Protocol address. What is IP address — Internet Protocol address In here, everyone is connected across the road and each person has a  unique address  for communication purpose. If  №1, Point Road  residents want to talk to  №2A Lake Street  residents, they can communicate without any difficulty through the relevant addresses. Similarly, an IP addres s  is used to identify devices or host (computer or other devices such as router, printer etc) connected to a network). The figure below shows a simple network diagram. All devices connected to the Internet or network use the “Internet language” for communication. That is, instead of street addresses, as in the example, each device has its own unique IP address. For example, the IP address of the first computer...