Why Subnetting?
Subnetting splits networks into smaller, manageable pieces. CIDR notation like 192.168.1.0/24 defines network and host bits.
Netmask
/24 equals 255.255.255.0 and allows 254 hosts.
Example
192.168.1.0/24: network 192.168.1.0, broadcast 192.168.1.255.