Add Book to My BookshelfPurchase This Book Online

Chapter 7 - Building a TCP/IP Router-Based Network

Cisco TCP/IP Routing Professional Reference
Chris Lewis
  Copyright © 1999 The McGraw-Hill Companies, Inc.

The Base Internetwork
Here we will outline the sample internetwork we will build at the end of this chapter. This internetwork will form the basis for discussion of implementation, security, backup, and management issues as we progress through the chapter. First, let's define what we want to connect together.
We will assume a data center in Chicago, where the head office also is located, and approximately 100 branch offices clustered around major cities, such as New York, Atlanta, Dallas, San Francisco, and Los Angeles. A typical branch office has 20 PCs that need access to hosts located in the Chicago data center, local applications, e-mail, and the Internet. There also is a growing need to support staff working from home and roving users with dial access.
The issues that need to be resolved are as follows:
  Do I use InterNIC/IANA-assigned IP addresses, or make up my own?
  What topology will be used?
  What IP addressing scheme and routing protocol will I use?
  What options are available for providing backup links in the event of line failure?
  How do I minimize the manual-support burden for IP address and name resolution?
  What reasonable security measures should I enforce?
  How can I reduce support costs by making this internetwork easily manageable from one location?
These issues will form the basis of discussion for the following sections. With internetwork design, as with many other aspects of networked computing, many options are available, and each will be appropriate for one application and inappropriate for another. I hope to be fairly unbiased in my presentation of each option, but I will favor those solutions with which I have had the most success. The bulk of this chapter will discuss the options available to you for internetwork configuration. At the end of this chapter we will return to the aforementioned requirements and select appropriate configuration options to service them.

 


 
Books24x7.com, Inc © 2000 –  Feedback