Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90057)

Additional DTC Configuration
Configuring DNS/IP
Chapter 8
144
Subnet masks specify how many bits of the IP address to reserve for
subdividing the network into subnets. The initial calculation is done in
binary, with bits reserved for the network and subnet set to “l”s, and
the bits reserved for the host set to “0”s. The decimal value is then
displayed.