Computer Networking

Internet Protocols in Action

Häftad, Engelska, 2005

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Beskrivning

This revolutionary text and its accompanying CD replace a whole lab full of computer equipment. They give computer science students realistic hands-on experience working with network protocols, without requiring all the routers, switches, hubs, and PCs of an actual network. Using the latest version of the open source program Ethereal, the reader opens packet trace files from the CD and follows the text to perform the exercises, gaining a thorough understanding of the material in the best way possible—by seeing it in action. This approach also benefits the instructor, who is spared the time-consuming tasks of maintaining a laboratory and taking traces. It can even relieve the anxiety system administrators have about students collecting traces on campus networks!

Produktinformation

Utgivningsdatum:2005-02-04
Mått:185 x 229 x 18 mm
Vikt:454 g
Format:Häftad
Språk:Engelska
Antal sidor:288
Förlag:John Wiley & Sons Inc
ISBN:9780471661863

Utforska kategorier

Nätverk och kommunikation inom Data och IT

Mer om författaren

Jeanna Matthews is the author of Computer Networking: Internet Protocols in Action, published by Wiley.

Innehållsförteckning

Preface iiiAcknowledgments viiiSection 1: Getting Started 1Introduction 1Exercise 1.1 Examining a Quiet Network 2Introduction 2Configuration 3Experiment 3Using the Capture Options Dialog 6Examining a Short Trace 9List, Protocol, and Raw Panes 10Trace Summary Statistics 12Questions 14Discussion and Investigation 14Resources 15Exercise 1.2 Protocol Layering 16Introduction 16Configuration 19Experiment 19Protocol Hierarchy Statistics 20TCP Connection 20Frame Layer 22Ethernet Layer 23Internet Protocol Layer 25Transport Control Protocol 26Packet Overview 27UDP Packets 27Questions 27Discussion and Investigation 28Resources 29Exercise 1.3 Examining a Busy Network Using Filters 30Introduction 30Configuration 31Experiment 32Capture Filters 32Color Filters 34Display Filters 38Searching for Packets 39Questions 39Discussion and Investigation 40Resources 40Section 2: Application Layer Protocols 42Introduction 42Exercise 2.1 Under the Hood of HTTP 44Introduction 44Configuration 46Experiment 47HTTP Get Request 48HTTP Response 50Multiple GET Requests per URL 50Plain Text Data 51Multiple TCP Streams 54Questions 54Discussion and Investigation 55Resources 56Exercise 2.2 HTTP Caching,Authorization and Cookies 57Introduction 57Configuration 57Experiment 58Cookies 58Authorization Headers 59Caching Headers 61Questions 63Discussion and Investigation 64Resources 64Exercise 2.3 FTP – File Transfer Protocol 65Introduction 65Configuration 66Experiment 67Control Channel 67Data Channels 71Questions 73Discussion and Investigation 74Resources 75Exercise 2.4 Sending and Receiving Email with SMTP and POP 76Introduction 76Configuration 77Experiment 78Outgoing Mail 78Incoming Mail 81E-mail Headers 82No Mail 84Questions 85Discussion and Investigation 86Resources 86Section 3: Transport Layer Protocols 88Introduction 88Exercise 3.1 Introduction to TCP 90Introduction 90Configuration 92Experiment 93Local TTCP Connection 93Connection Establishment 94One-way Data Flow 96Closing a Connection 97Connection Statistics 97Remote SSH Connection 98Questions 99Discussion and Investigation 99Resources 101Exercise 3.2 Retransmission in TCP 102Introduction 102Configuration 103Experiment 104Local TTCP Connection 104SACK Option Negotiated 105Missing Packets and Retransmission 107Impact on Sending Rate 109Remote TTCP Connection 111Questions 112Discussion and Investigation 113Resources 114Exercise 3.3 Comparing TCP to UDP 115Introduction 115Configuration 117Experiment 117Using TTCP To Generate TCP and UDPTraffic 118Normal Data Transfer In TCP 119Normal Data Transfer In UDP 120No Receiver Present for TCP and UDP 122Questions 123Discussion and Investigation 124Resources 125Exercise 3.4 Competing TCP and UDP Streams 126Introduction 126Configuration 127Experiment 128Two Competing TCP Streams 128UDP Competing with TCP 132Two Competing UDP Streams 133Questions 135Discussion and Investigation 136Resources 136Section 4: Network Layer Protocols 137Introduction 137Exercise 4.1 Joining the Internet: Introduction to IP and DHCP 139Introduction 139Configuration 142Experiment 143Obtaining an IP Address Via DHCP 143Fragmentation in IPv4 146Ping Over IPv6 149Questions 151Discussion and Investigation 151Resources 152Exercise 4.2 Ping and Traceroute 153Introduction 153Configuration 156Experiment 157Local and Remote Pings 157Local Traceroute 159Remote Traceroute 162Questions 163Discussion and Investigation 164Resources 164Exercise 4.3 Dynamic Routing with RIP 166Introduction 166Configuration 168Experiment 170No RIP Enabled 170RIP Enabled on the Endpoints 170RIP Enabled on All Machines But One 171RIP Enabled End-to-End 175Adding a Loop in the Network Graph 177Adjusting to a Failed Link 178Open Shortest Path First 178Questions 180Discussion and Investigation 181Resources 181Exercise 4.4 Border Gateway Protocol 182Introduction 182Configuration 184Experiment 186Establishing BGP Peering Sessions 186Withdrawing a Route 188Repairing a Connection 191Questions 193Discussion and Investigation 193Resources 194Section 5: Link Layer Protocols 195Introduction 195Exercise 5.1 MAC Addresses and the Address Resolution Protocol 197Introduction 197Configuration 200Experiment 201Address Resolution Protocol 201MAC Address Spoofing 203Questions 207Discussion and Investigation 208Resources 208Exercise 5.2 Ethernet 209Introduction 209Configuration 213Experiment 214Ethernet Switch 214Ethernet Hub 216Questions 217Discussion and Investigation 219Resources 219Exercise 5.3 Wireless LANs 220Introduction 220Configuration 226Experiment 227Beacon Frames 227WEP Disabled 229Contents xiData Frames 231WEP Enabled 232Questions 233Discussion and Investigation 234Resources 234Section 6: Security 235Introduction 235Exercise 6.1 Encryption 236Introduction 236Configuration 238Experiment 239Plain Text Telnet Session 239Encrypted SSH Session 240Attacks Against SSH 242Comparing HTTP and HTTPS 243Questions 246Discussion and Investigation 247Resources 248Exercise 6.2 IP Spoofing and TCP Session Stealing 249Introduction 249Configuration 250Experiment 251TCP Session Hijacking 252TCP Session Termination 256Questions 257Discussion and Investigation 257Resources 258Exercise 6.3 System Vulnerabilities 259Introduction 259Configuration 261Experiment 262Port Scans 262Blaster Worm 265Questions 267Discussion and Investigation 268Resources 268Index 269