Sometimes when I make bank deposits I forget my calculator. In actual fact I don't own a calculator and bringing my laptop to the ATM to add up the money sees odd to me. It is in cases like this that I use my brain. I've also had to quickly rebuild routed networks to avoid downtime and in the process calculate numerous subnets. Stopping to load up some application instead of using my brain sees equally odd. To properly understand data networking, you need to know binary. I suppose if the goal is how can to pass exams without actually learning anything I'd say you've got the right attitude for it. Please note its 40+ Celsius here in toronto and a show proc aggravation displays a scary number. *********** REPLY SEPARATOR *********** On 8/8/2001 at 12:29 PM Ken wrote: >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? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=15326&t=15326 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]