I am trying to understand IP address classes , I checked the link below:
I am not sure why the top part is saying class C subnet mask is 255.255.255.0 and below Private IP address table it is showing it 255.255.0.0, the same for class B the top part is showing 255.255.0.0 and the Private table is showing 255.240.0.0
Another thing that also confuses me is the Number of the Networks. for instance Class C that has subnet mask 255.255.255.0. How many Networks and hosts we can have.???
To my understanding if we have 192.168.1.X 255.255.255.0 , it means we have on Network since the first 3 octets will not change , but will have (2^8)-2=254 Hosts...
Any explanation will be very much appreciated..