Just as telephone area codes can no longer hold the growing volume of numbers needed, networks are becoming too crowded with IP addresses. This has now become one of the top five strategic issues for systems administratators who have to renumber IP addresses as networks grow and change. Administrators responsible for network design need to anticipate periodic renumbering and constantly re-evaluate the network's abilitity to be changed easily. There are many reasons to renumber including: internal reorganisation, mergers and spin-offs, major technical change in a network, and users and ISPs changing service provider.
I was hesitant to buy this book given that it's thin (as compared to most computer books) and costs 50 bucks but I'm glad I decided to spend the money.Chapter 1 has one of the best, common sense, explanations of the basics of TCP/IP I've read. Given other titles I've read I thought subnetting was a hideous, complex process but this book puts it in laymans' terms.The entire book is a very "easy read". It's perfect for those of us who are not TCP/IP gurus. I plan to start on some Cisco titles now and this was a great preparation for those.
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