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Three sentences to briefly introduce subnet mask
2022-07-07 00:00:00 【Fairy Tales】
IP The address consists of network bit and host bit .
The subnet mask is a string 32 Binary number of bits ( such as 11111111 11111111 11111111 00000000), And IP Address collocation , For partitioning IP Network bit and host bit of address .
In the subnet mask 1 Quantity representative of IP The number of positions occupied by network bits in the address , In the subnet mask 0 Quantity representative of IP The number of positions occupied by host bits in the address .
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