Let's says that someone told me that network address is
192.168.70.0, but he does not tell me the neither broadcast address nor network mask.
Is it correct to say that I cannot determine the maximum IP address in such a network, or should I say that
192.168.70.0 is the network address of a Class C network, so the maximum IP address is
In other words, and perhaps the question is silly, what's the difference between a network and a subnetwork?