My book I'am reading IP fundamentals has gotten a bit confusing when getting combining several subnets which uses more bits for it's subnet number into one single ...

Or as one person aptly phrased it – “How not to teach a class”. I read something about a similar situation in a newsgroup not so long ago, but dismissed it, not actually believing that a trainer would ...

Okay, first assume that I am completely f*****g stupid BUT, desperate to understand subnet masking. I'm reading the MCSE TCP/IP guide (for some reason I enjoy it) and have reached the Subnet chapter.