subnet's definitions

[roberto.bazan@inycom.es]

hi, i newbie, and i want to do you a question.
Anybody know can i define in access file the next structure of net:

212.75.160.0/255.255.224.0 or 212.75.160.0 until 212.75.191.0, 

have i write eache ip in access file.


Thanks very much