Managing IP Networks with Cisco Routers

Front Cover
"O'Reilly Media, Inc.", 1997 - Computers - 334 pages
Routers are the glue that connects the pieces of your network. Even in the simplest networks, this isn't a simple task. Routers have evolved into highly specialized computing platforms, with extremely flexible but complex capabilities. Managing IP Networks with Cisco Routers is a practical guide to setting up and maintaining a production network. It discusses issues like how to select routing protocols and how to configure protocols to handle most common situations. It also discusses less esoteric but equally important issues like how to evaluate network equipment and vendors and how to set up a help desk. Although the book focuses on Cisco routers, and gives examples using Cisco's IOS, the principles discussed are common to all IP networks, regardless of the vendor you choose. This book is firmly grounded in the realities of day-to-day network management. It's designed to solve real-world problems, like: "How do I prevent my router from using unreliable information from other routers?" "How do I safeguard my router against attacks?" "How can I make my network more reliable?" If you're building or maintaining an IP network, you'll find this book indispensable. Topics covered include:
  • Designing an IP network
  • Evaluating equipment and vendors
  • Selecting routing protocols
  • Configuring common interior protocols (RIP, OSPF, EIGRP)
  • Connecting to external networks and configuring exterior protocols (BGP)
  • Ongoing network management: troubleshooting and maintenance
  • Security and privacy issues
 

Selected pages

Contents

The Basics of IP Networking
1
Addresses and Networks
2
Private and Public Addresses
14
The IP Routing Algorithm
18
Domain Names and the Domain Name System
22
Network DesignPart 1
27
Stating Your GoalsAn Important First Step
28
Network ArchitectureHow It All Fits Together
29
Dynamic Routing with Multiple Paths
160
Using Multiple Routing Protocols at the Same Time
165
The NonTechnical Side of Network Management
169
Defining the Boundaries of Your Network
170
Staff Skills
173
Costs
176
Establishing a Help Desk
178
The Technical Side of Network Management
183

Media SelectionWhat Goes Where?
30
Physical Topology
46
Network DesignPart 2
53
Router Placement
60
Subnet Assignment and Mask Selection
62
Proxy ARP as an Alternative to Subnets
72
Redundancy and Fault Tolerance
76
What About MultiProtocol Networking?
80
Selecting Network Equipment
83
What Is an IP Router?
84
Router Selection Criteria
86
Routing Protocol Selection
113
Classification of Dynamic Routing Protocols
121
Selecting a Routing Protocol
131
Routing Protocol Configuration
133
Basic Configurations
134
Propagating Static Routes
139
Using VariableLength Subnet Masks with a Classful Protocol
141
Backup Static Routes
143
Suppressing Advertisements
151
Restricting Sources of Routing Information
152
Filtering Specific Routes from an Update
155
Troubleshooting
192
Tools for Monitoring and Troubleshooting
200
Change Management
219
Connecting to the Outside World
231
How Do I Connect to the Internet?
234
Addresses
236
External Routing
240
Permanent or OnDemand?
254
Network Security
256
Assessing Your Security Needs
258
Controlling Access
259
Enhancing Privacy
274
Maintaining Data Integrity
280
Preventing Denial of Service
282
Other Security Concerns
284
Configuring Interfaces
287
Where and How to Get New RFCs
307
Obtaining Internet Drafts
309
Obtaining IP Addresses
311
Index
315
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