About CIDR Notation
CIDR (Classless Inter-Domain Routing) notation combines an IP address with a prefix length to define a network range. For example,10.0.0.0/24represents 256 addresses from 10.0.0.0 to 10.0.0.255.
The prefix length (the number after the slash) indicates how many leading bits define the network portion. A smaller prefix means a larger network.