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ARP – Address Resolution Protocol

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…

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Weaknesses of IP address

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,…