Comments on: Subnetting Shortcuts http://happyrouter.com/subnetting-shortcuts Your Source for Cisco Networking How-To Articles & Videos Thu, 02 Sep 2010 07:40:37 -0400 http://wordpress.org/?v=2.8 hourly 1 By: M. P. Shui http://happyrouter.com/subnetting-shortcuts/comment-page-1#comment-671 M. P. Shui Thu, 15 Apr 2010 18:58:37 +0000 http://67.225.190.39/subnetting-shortcuts#comment-671 I was taught to calculate the number of subnet, hosts, range of valid IPs and the subnet mask of an address from a individual address and mask. Can you explain how to calculate the total subnet range from a given IP mask, instead of just one? There has to be a fast way of finding the answers to the above questions, instead of doing each selection individually, especially when taking the Cisco Test Thank you I was taught to calculate the number of subnet, hosts, range of valid IPs and the subnet mask of an address from a individual address and mask.

Can you explain how to calculate the total subnet range from a given IP mask, instead of just one?

There has to be a fast way of finding the answers to the above questions, instead of doing each selection individually, especially when taking the Cisco Test

Thank you

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