通過子網(wǎng)掩碼計(jì)算子網(wǎng)內(nèi)主機(jī)數(shù)抬驴、子網(wǎng)數(shù)炼七、主機(jī)總數(shù)
例.子網(wǎng)掩碼:(255.255.224.0)10 >>(11111111.11111111.11100000.00000000)2
共13個(gè)“0”
- 子網(wǎng)內(nèi)主機(jī)數(shù)
- 2^13 - 2 = 8190
- 子網(wǎng)數(shù)
- 舍棄8個(gè)“0”,余5個(gè)“0”
- 256 / (2^5) = 8
- 主機(jī)總數(shù)
- 子網(wǎng)內(nèi)主機(jī)數(shù) X 子網(wǎng)數(shù)
- 8190 * 8 = 65024