DI-1162 Remote Access Router
IP Class
Class A
Class B
Class C
Subnet mask settings other than those listed above add significance to the interpretation
of bits in the IP address. The bits of the subnet mask correspond directly to the bits of
the IP address. Any bit an a subnet mask that is to correspond to a net ID bit in the IP
address must be set to 1.
144
Subnet Mask
255.0.0.0
255.255.0.0
255.255.255.0
Appendix C - IP Concepts