By Jeffrey S. Beasley


Second Edition


Jeffrey S. Beasley


This textual content offers a accomplished examine laptop networking from the viewpoint of the community administrator. It courses readers from an entry-level wisdom in machine networks to complicated options in Ethernet networks; router configuration; TCP/IP networks; local-, campus-, and wide-area community configuration; community safeguard; optical networks; voice over IP; and commercial networks. wide examples at the home windows Server 2003/2008 configuration and procedure configuration for the Linux working method also are incorporated. an entire bankruptcy is dedicated to retaining and securing a community from capability community assaults. themes comprise denial of provider assaults, firewalls, intrusion detection, password cracking, packet sniffing, and examining unsecured info packets. different key community protection matters, comparable to configuring router entry lists, configuring a digital inner most community (VPN) connection, and securing instant networks, also are lined. Router configuration is tested, starting from an creation to router configuration to configuring a number of routing protocols for intranet and net information site visitors. Routing protocols key to uncomplicated community operations are tested, together with static, RIP, IGRP, OSPF, EIGRP, and BGP. The discussions on routing protocols are followed with in-depth steps for configuring the router to run the protocol, confirm operation, and troubleshoot the router.


Key Pedagogical Features

  • NET-CHALLENGE software program offers a simulated, hands-on event in configuring routers and switches. workouts supplied within the textual content and at the CD problem readers to adopt convinced router/switch community configuration initiatives. The software program has the feel and appear of truly being hooked up to the router or change console port.
  • PROTOCOL ANALYZER software program integrated with the textual content makes use of the Finisar Surveyor Demo. Examples of utilizing the software program to research facts site visitors are integrated in the course of the text.
  • ACCOMPANYING CD-ROM comprises the Finisar Surveyor Demo software program and captured info site visitors utilized in the textual content, which permits readers to catch info site visitors all alone networks.
  • CONFIGURING, reading, or TROUBLESHOOTING sections are incorporated with each one bankruptcy to lead the reader via complex ideas in networking.
  • OBJECTIVES and advent before everything of every bankruptcy sincerely define particular pursuits for the reader.
  • EXTENSIVE challenge units, SUMMARIES, and QUESTIONS AND difficulties (including severe considering questions) are discovered on the finish of every chapter.
  • KEY phrases and their definitions are highlighted within the margins to foster inquisitiveness and make sure retention.

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Additional resources for Networking

Example text

There are many options for assembling and configuring a LAN, but this example presents a networking approach that is simple and consistent with modern computer networking. It will also provide a good introduction to the networking topics presented in the text. For this example, three computers and one printer are to be configured in the star topology. Each device in the network will be assigned an IP address from the private address space. The following step-by-step discussion guides you through the process of assembling, configuring, and testing an office LAN: Step 1 The first step in assembling an office LAN is to document the devices to be connected in the network and prepare a simple sketch of the proposed network.

The switch stored the MAC addresses of all devices connected to its ports and used this information to forward the data from computer 1 directly to the printer. The switch also used the MAC address information to forward the data from computer 5 to computer 6 (refer to Figure 1-4). MAC addresses are listed in hexadecimal (base-16). The complete MAC address consists of 12 hexadecimal digits. The first 6 digits identify the vendor. The last 6 form a serial number assigned by the manufacturer of the network interface card.

For example, if a switch is used instead of a hub, the data from computer 1 is transmitted directly to the printer, and the other computers do not see the data traffic. The traffic path for the switched network is shown in the dotted lines in Figure 1-4. The use of a switched connection greatly improves the efficiency of the available bandwidth. It also permits additional devices in the LAN to simultaneously communicate with each other without tying up network resources. For example, while computer 1 is printing a large file, computers 5 and 6 can communicate with each other, as shown in the dashed line in Figure 1-4.

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