We all know the ip address range and structure of IPv4
In that 127.x.x.x is reserved for loop back ip address for hosts,but commonly we use 127.0.0.1 as a loop back ip address in hosts to check the interface and network card.
Can any one explain me,Why the whole block is reserved for loop back address i.e 127.0.0.0 block which contain 16777214 hosts.
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