- A subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network and host address.
- An IP address has two components, the network address and the host address.
For example: 192.168.0 . 108
- Assuming this is part of a class C network, the underlined first three numbers 192.168.0 represent the network address and the second one number (108) represent host address
- IP - (<Network><Host>)
- Subnetting further divides the host part of an IP address to a subnet and host address.
- IP - (<Network><Subnet><host>)
Notes