ARP or Address Resolution Protocol is used to map Internet addresses to physical addresses. Address resolution is the process of mapping Internet IP addresses into physical addresses. Two machines in the internet cannot communicate with each other  without knowing each others actual physical address i.e address of its hardware interface, for e.g. the network interface…

Below are couple major weaknesses of IP addresses – A machine cannot be assigned a permanent IP address i.e. it should change when the machine is connected to different physical networks When class C networks grow beyond 255 hosts, they  should be changed to class B networks. Such changes in IP addresses requires high labor,…

An IP address with all 0’s in the host id, refers to this particular and the IP addresses with all 0’s in the network id refers to this particular network. This network addressing is useful in cases when a host wants to communicate with a network whose network address the host sends the ‘this’ type…