How ip address and subnet masks interact
v When ip host is configured, a subnet mask
is assigned along with an ip address. Likethe ip address the subnet mask is 32
bits long. The subnet mask signifies which part of the ip address is network
and wich part is host. In other hand A subnet mask is a number that defines
arrange of ip address that can be used in anetwork.
v The subnet mask is compared to the ip
address from left to right, bit to bit. The is in the subnet mask represent the
network portion.tje os represent the host portion. In the example shown ,the first three octets are
network, and the last octet, represent thehost
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