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Hands-On Networking with Internet Technologies: Second Edition

by Douglas E. Comer - Department of Computer Sciences, Purdue University, West Lafayette, IN 47907; W. David Laverell - Web site by

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Copyright, iv
List of Experiments, xv
Preface, xix
About the Author, xxiii
Other Books in the Internetworking Series from Douglas Comer, xxv
1. Introduction and Overview, 1
1.1. The Fundamental Need for a Laboratory, 1
1.2. The Spectrum of Possible Lab Facilities, 1
1.3. A Word About Simulation, 3
1.4. Organization of the Book, 4
I. Network Programming on a Single Computer, 5
2. Hardware and Software on a Single Computer, 7
2.1. The Two Types of Support and Their Uses, 7
2.2. Support for Network Access, 7
2.3. Support for Network Programming, 8
2.4. Recommendations, 8
2.5. Summary, 8
3. Experiments Using Application Programs, 9
3.1. Using a Single Computer to Experiment with Applications, 9
3.2. Using a Computer to Develop and Test Network Applications, 9
3.3. Stress Testing Applications with an Emulated Internet, 10
3.4. Transport Protocol Development on a Single Computer, 13
3.5. Summary, 13
Experiment 3.1. Use Telnet to Contact a Fortune Server, 14
Experiment 3.2. Use Telnet to Contact a Web Server, 17
Experiment 3.3. Use Telnet to Send an Email Message, 19
Experiment 3.4. Use the Ping Program, 21
Experiment 3.5. Download and Use a Packet Capture Tool, 23
II. Network Programming on Shared Workstations, 25
4. Hardware and Software for a Shared Workstation Lab, 27
4.1. Consequences of Sharing, 27
4.2. Example Shared Lab Technologies, 27
4.3. Architecture of a Shared Lab, 28
4.4. Using a Shared Lab in a Networking Course, 28
4.5. Broadcast Domain Assumption, 29
4.6. Summary, 29
5. Network Programming Experiments Using a Simplified API, 31
5.1. Introduction, 31
5.2. Obtaining Software for the API, 32
5.3. Summary, 33
Experiment 5.1. Compile, Test, and Extend Example Echo Software, 34
Experiment 5.2. Compile, Test, and Extend Example Chat Software, 37
Experiment 5.3. Build a Simple File Transfer Service, 39
6. Network Programming Experiments Using the Socket API, 41
6.1. Introduction, 41
6.2. Information About Sockets, 41
6.3. A Note about the Difficulty of Socket Programming, 42
6.4. Summary, 42
Experiment 6.1. Compile, Link, and Run a Socket Program, 43
Experiment 6.2. Write an Echo Client and Server Using Sockets, 45
Experiment 6.3. Build a Web Server Using Sockets, 47
Experiment 6.4. Build a Library for a Network API, 49
7. Concurrent Network Programming Experiments, 51
7.1. Introduction, 51
7.2. Summary, 52
Experiment 7.1. Build a Concurrent Server (Threads), 53
Experiment 7.2. Build a Concurrent File Transfer Server (Processes), 55
Experiment 7.3. Build a Multiservice Server, 57
8. Protocol Design Experiments, 59
8.1. Introduction, 59
8.2. Stress Testing Protocols, 59
8.3. Internet Emulation with a Gateway, 59
8.4. Emulation Behavior, 60
8.5. Gateway Details, 61
8.6. Gateway Registration Message, 61
8.7. Packet Exchange, 62
8.8. Error Processing, 64
8.9. Gateway Semantics and Defaults, 64
8.10. Possible Extensions, 65
8.11. Summary, 65
Experiment 8.1. Build an Internet Emulation Gateway, 66
Experiment 8.2. Design a Clock Synchronization Protocol, 69
Experiment 8.3. Design a Reliable Data Transfer Protocol, 71
Experiment 8.4. Design a Sliding Window Protocol, 73
Experiment 8.5. Debug an Application Protocol, 75
9. Experiments with Protocols from the TCP/IP Suite, 77
9.1. Introduction, 77
9.2. Difficulties and Rewards, 77
9.3. Summary, 78
Experiment 9.1. Build a Client for the TIME Protocol, 79
Experiment 9.2. Build a DNS Client Program, 81
Experiment 9.3. Build a DHCP Client, 83
III. Network Measurement and Packet Analysis Experiments on Augmented, Shared Workstation Labs, 85
10. Hardware and Software for an Augmented Shared Lab, 87
10.1. The Ideal Measurement Lab, 87
10.2. Alternatives to an Isolated Network, 87
10.3. Augmentation, 88
10.4. Protecting the Production Network, 88
10.5. Computers on a Private Network, 89
10.6. Summary, 89
11. Network Measurement Experiments, 91
11.1. Introduction, 91
11.2. Measuring Throughput, 91
11.3. Summary, 92
Experiment 11.1. Compile and Test ttcp, 93
Experiment 11.2. Measure 10 and 100 Mbps Network Throughput, 95
Experiment 11.3. Compare Throughput of a Switch and a Hub, 97
12. Packet Capture and Analysis Experiments, 99
12.1. Introduction, 99
12.2. Promiscuous Mode and Hubs, 99
12.3. Manual Packet Inspection, 100
12.4. Summary, 100
Experiment 12.1. Capture and Decode Ethernet Frames, 101
Experiment 12.2. Decode an IP Header, 103
Experiment 12.3. Decode TCP Segment Headers, 105
Experiment 12.4. Build a Packet Analyzer, 107
13. Protocol Observation Experiments, 109
13.1. Introduction, 109
13.2. Protocol Sequences at Each Layer, 109
13.3. Summary, 109
Experiment 13.1. Capture and Reassemble IP Fragments, 110
Experiment 13.2. Extract Data from a TCP Stream, 113
Experiment 13.3. Observe Concurrent TCP Connections, 115
IV. Configuration Experiments in a Dedicated Intranet Lab, 117
14. Hardware and Software for a Dedicated Intranet Lab, 119
14.1. Dedicated Vs. Production Facilities, 119
14.2. Characteristics of a Dedicated Intranet Lab, 120
14.3. Example Equipment in a Dedicated Lab, 120
14.4. Summary, 121
15. Internet Address Configuration Experiments, 123
15.1. Introduction, 123
15.2. Organization of Chapters, 123
15.3. Summary, 124
Experiment 15.1. Configure IP Addresses, 125
Experiment 15.2. Assign Fixed-Length IP Subnet Addresses, 127
Experiment 15.3. Assign IP Addresses Using CIDR, 130
16. Web Technology Configuration Experiments, 135
16.1. Introduction, 135
16.2. Web Technologies, 135
16.3. Summary, 136
Experiment 16.1. Configure an Apache Web Server, 137
Experiment 16.2. Download and Configure a Squid Cache, 139
Experiment 16.3. Configure and Test a Web Load Balancer, 141
17. IP Routing and IP Forwarding Experiments, 143
17.1. Introduction, 143
17.2. Indirect Vs. Direct Observation, 143
17.3. Summary, 144
Experiment 17.1. Use Netstat to Examine a Routing Table, 145
Experiment 17.2. Use SNMP to Probe a Routing Table, 147
Experiment 17.3. Configure and Run RIP Software, 149
Experiment 17.4. Configure and Run OSPF Software, 152
18. Virtual and Protected Internet Environment Experiments, 157
18.1. Introduction, 157
18.2. Flexible Abstractions, 157
18.3. Summary, 157
Experiment 18.1. Configure a DNS Server, 158
Experiment 18.2. Install and Configure a NAT Box, 161
Experiment 18.3. Install and Configure a VPN, 164
V. Protocol Stack Implementation In A Special-Purpose Lab, 166
19. Hardware and Software for a Special-Purpose Protocol Development Lab, 169
19.1. Introduction, 169
19.2. The Need for Two Computers, 169
19.3. Front-end and Back-end Computers in a Lab, 170
19.4. Functional Requirements, 170
19.5. An Example Architecture, 171
19.6. Operation of the Author’s Lab, 173
19.7. Automated Recovery, 175
19.8. Organization of the Lab Software, 175
19.9. Reset Controller Hardware, 177
19.10. Scaling the Architecture, 178
19.11. Virtual Lab, 180
19.12. Further Details, 181
19.13. Summary, 181
20. Protocol Stack Development Experiments, 183
20.1. Introduction, 183
20.2. The Value of Building a Stack, 183
20.3. Summary, 184
Experiment 20.1. Interface with a Network Device Driver, 185
Experiment 20.2. Build an IP Forwarding Mechanism, 187
Experiment 20.3. Implement an IP Router, 189
VI. Network Component Design in an Engineering Lab, 191
21. Hardware and Software for a Network System Engineering Lab, 193
21.1. Network Processors, 193
21.2. Facilities Needed, 194
21.3. Hardware for an Example Lab, 194
21.4. A Network Processor Testbed, 195
21.5. Software for the Example Lab, 196
21.6. Relationship to Previous Lab Architectures, 196
21.7. Summary, 197
22. Network Systems Engineering Experiments, 199
22.1. Introduction, 199
22.2. Summary, 199
Experiment 22.1. Configure Your Account, 200
Experiment 22.2. Compile and Download Code to a Network Processor, 203
Experiment 22.3. Build a Packet Analyzer On a Network Processor, 205
Experiment 22.4. Build an Ethernet Bridge, 208
Experiment 22.5. Build an IP Fragmenter, 211
Experiment 22.6. Build a Traffic Classifier, 213
Experiment 22.7. Create a Minimal MicroACE, 215
Experiment 22.8. Create a Classifier Microblock, 217
Experiment 22.9. Build Microengine Frame Forwarding Code, 219
Index, I-1-1

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