So I'm hearing two questions. To rephrase: a) Why use binary vs decimal when calculating subnets? b) Why do it manually when programs exist to do the work? A) Binary makes it easier to view the pattern. A great tutorial is: http://www.3com.com/solutions/en_US/ncs/501302.html Also check the GroupStudy archives for comments by Howard Berkowitz who has taught ip subnetting to many students. B) Short answer is because the Cisco certification tests require that it be done manually. Long answer is that practice gives us the ability to move beyond rote repetition to a deeper understanding. This is true of all phases of our studies. Watch the postings of the CCIE candidates. They are beyond "configs 'r' us" and are exploring the nuances. > -----Original Message----- > From: Ken [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, August 08, 2001 11:30 AM > To: [EMAIL PROTECTED] > Subject: Why Should the Binary Math Method Be Used to Subnet [7:15306] > > > This is a study group so I have a question for which I need > some education. > I am not looking for a flame war, just education. The > question I have is of > what use is the binary math method of subnetting as compared > to just using a > program that does subnetting? If the point to the exercise is > to produce a > plan for subnetting that can then be entered into each device > on the network > or into a DHCP server setup, what else is achieved by doing > this manually? > It seems to me that the point is not the journey, but the > arrival at the > destination. Indeed arrival as quickly as possible, with the > least source of > error. As Cisco even says; "The purpose of this tool is to > provide a way to > calculate IP subnetting which is fast, easy, and error free. > Doing such > calculations manually is time consuming and susceptible to common > mathematical mistakes, especially in conversions between > binary and decimal > numbers." So what is it I am not understanding? > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=15317&t=15317 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

