To subnet a network, bits from the host portion of the original network mask are changed...

 

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To subnet a network, bits from the host portion of the original network mask are changed into subnet bits. The number of subnet bits defines the number of subnets. Questions: Given each of the possible subnet masks depicted in the following binary format, how many subnets and how many hosts are created in each example? Hint: Remember that the number of host bits (to the power of 2) defines the number of hosts per subnet (minus 2), and the number of subnet bits (to the power of two) defines the number of subnets. The subnet bits (shown in bold) are the bits that have been borrowed beyond the original network mask of /24. The /24 is the prefix notation and corresponds to a dotted decimal mask of 255.255.255.0. 1) (25) 11111111.11111111.11111111.10000000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 2) (26) 11111111.11111111.11111111.11000000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 3) (27) 11111111.11111111.11111111.11100000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 4) (28) 11111111.11111111.11111111.11110000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 5) (29) 11111111.11111111.11111111.11111000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 6). Why is the subnet mask so important when analyzing an IPv4 address? Explain. To subnet a network, bits from the host portion of the original network mask are changed into subnet bits. The number of subnet bits defines the number of subnets. Questions: Given each of the possible subnet masks depicted in the following binary format, how many subnets and how many hosts are created in each example? Hint: Remember that the number of host bits (to the power of 2) defines the number of hosts per subnet (minus 2), and the number of subnet bits (to the power of two) defines the number of subnets. The subnet bits (shown in bold) are the bits that have been borrowed beyond the original network mask of /24. The /24 is the prefix notation and corresponds to a dotted decimal mask of 255.255.255.0. 1) (25) 11111111.11111111.11111111.10000000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 2) (26) 11111111.11111111.11111111.11000000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 3) (27) 11111111.11111111.11111111.11100000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 4) (28) 11111111.11111111.11111111.11110000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 5) (29) 11111111.11111111.11111111.11111000 Dotted decimal subnet mask equivalent: Number of subnets? Number of hosts? 6). Why is the subnet mask so important when analyzing an IPv4 address? Explain.