Subnets and Subnet Masks
nThe previous example showed 4 network interfaces with the following addresses: 128.3.2.3, 128.3.4.1, 128.3.1.2, 128.3.3.1
nThis is a class B
address, 128.3 indicates the internet routing
part.
nThe 2.3, 4.2, 1.2 and 3.1 digits at the end of the address form the host and subnet address. The subnet and the host address consist of 8 bits each in this example.