Subnetting
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IP Addressing and Subnetting INC IPV6
Internetworking Protocol (IP) addresses are the unique numeric identifiers required of every device connected to the Internet. They allow for the precise routing of data across very complex worldwide internetworks. The rules for their format and use are governed by the Internet Engineering Task Force (IETF) of the The Internet SOCiety (ISOC). In response to the exponential increase in demand for new IP addresses, the IETF has finalized its revision on IP addressing as IP Version 6, also know as IPng (ng = Next Generation). Key hardware vendors such as Cisco and major Internet Service Providers such as America Online have already announced plans to migrate to IP Version 6.IP address allocation within an organization requires a lot of long-term planning. This timely publication addresses the administrator and engineer's need to know how IP 6 impacts their enterprise networks. - Easy-to-read, light technical approach to cellular technology - Ideal for companies planning a phased migration from IP 4 to IP 6 - Timely publication: The IETF standard was finalized in early 1999 and will begin to be implemented in late 1999/2000. The current IP Version 4 address set will be exhausted by 2003 - The book focuses on planning and configuring networks and devices for IP 6. Specifically, it will cover how to: Increase the IP address size from 32 bits to 128 bits; Support more levels of addressing hierarchy; Support an increased number of addressable nodes; Support simpler auto-configuration of addresses; Improve the scalability of multicast routing by adding a "scope" field to multicast addresses; Use a new "anycast address" to send a packet to any one of a group of nodes
Subnetting
Master the fundamental concept at the heart of professional networking Subnetting is the aspiring network professional’s guide to the concepts and practices at the core of the field. By dividing a single physical network into smaller subnetworks, you gain greater control of performance, access, and security. While the concept is simple, the actual practice is complex—yet it is an essential skill for networking professionals, and a major skill tested on the CCENT and CompTIA Network+ exams. This book shows you everything you need to know about constructing IP addresses, VSLM, and route summarization to help you build your skill set on a strong foundation. The IPv4 address has 32 bits available, which can be divided into host ID and network ID; the number of bits assigned to the network ID determines the balance between total subnetworks and devices allowed—the trick is determining the most efficient balance for a particular network. Subnetting allows you to borrow bits from the host to allow for more networks, and subnet masks are used to determine switching and routing priority. This book delves into the mechanisms and practices you need to know, including networking fundamentals, rules of IP addresses, supernetting, variable length subnet mask, IPv6, and more: Master the fundamental topic at the heart of the Cisco Certified Entry Networking Technician and CompTIA Network+ certifications Improve network performance using subnetworks to avoid high-usage “clogs” Utilize network partitioning to confine breaches or viruses and improve security Construct efficient solutions to problems of allocation and range With clear guidance from an industry expert and a practical perspective geared toward real-world situations, Subnetting offers an outstanding introduction to this essential foundational concept.
Understanding TCP/IP Subnetting
This is an excellent tutorial for anyone wanting to pass the Microsoft, A+, or Cisco TCP/IP exam. It covers IPv4 subnetting in depth, such as how to construct the IPv4 subnet tables from the ground up. Additional chapter includes the new IPv6 standard. "Hi Everyone, I took my TCP/IP today with score of 948/1000, your exam preparation is excellent and good value for money. What I like about your test is the layout, dividing test into different topics, that way it is easy to spot your weak areas. I would recommend anyone out there to check your Test Prep before taking any Microsoft Exams." —Abdi Elmi "I had just appeared for the TCP/IP exam, and it was quite tough. Your questions proved to be very useful additional source besides my Sybex guide. My score, 879, though I expected in 900s." —Steven Chiu, Calcutta, India “Passed the Microsoft TCP/IP in the mid-nineties! Glad I had your tool.” —Robert Vettor, U.S.A. "...As for TCP/IP, I made 965 which means I missed 2 out of 58. I was positive that two of the questions had no correct answers... As for your tutorial, it is the ‘bomb’. I don't know if you know that term means where you live, but my 15 year old daughter uses it to refer to something that is excellent. I was totally prepared and did not see anything that the tutorial did not cover in detail. Keep up the good work!" —Jim Newton, U.S.A. “Thanks for your tutorial. You helped me pass TCP/IP and other MS Exams. Just wanted to say thanks, big time!! Thank you for your assistance in this matter." —John Devereaux, HP Computers