The Sky Networks - CIDR CIDR (Classless Inter-Domain Routing) notation rather than the common subnet mask 255.x.x.x when configuring addresses and networks. Refer to the CIDR Subnet Table to find the CIDR
If the range of IP 172.16.0.0/12 is class B , why can I use the subnet mask 255.255.255.0 in this range? - Quora
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