On Tue, 3 Feb 2015, paul g wrote: > I am being serious here by the way. And you got a serious answer. But you stumbled upon one of THE most infuriating subjects of networking and routing, to the degree that most of us either memorise it, use a cheat sheet (like this: http://www.aelius.com/njh/subnet_sheet.html) or just plain IGNORE it and hope it goes away!