(Because the enterprise needs to allocate the IP address 172.16.0.0/18 reasonably, the most is 600, so it is calculated from 2 to the Nth power -2 "600 because it can be known that N=10, so it is calculated to allocate 172.16.0.0/22 ??to 600. The remaining 172.16.4.0/22~172.16.60.0/22 ??can be allocated;)
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