The Cisco ccna book has a test question : what are the valid subnet numbers for
180.1.0.0 mask 255.255.248.0 Now...when I use the formula in my study guide AND when I use a subnet calc program on the web I get the same wrong answer, that is valid numbers in this net are from 180.1.0.1 -
180.1.7.254The ccna guide tells me the right answer is that subnet 0 is 180.1.0.0 and then 180.1.8.0 ,180.1.16.0 etc up to 180.1.240.0 (last valid subnet ) ...
180.1.248.0 (broadcast)What am i doing wrong ? Any help ?