Introduction to Network Analysis ML-B101-3 Introduction to Network Analysis This course provides an introduction to Network Analysis (also referred to as Protocol Analysis). Just as an x-ray technician examines the internal view of a broken arm or leg, the network analyst looks inside the network communications to identify excessive broadcasts, unanswered requests, slow response times, poorly-written applications, and chatty communications. There are numerous network problems that do not generate any error messages so network analysis is a fundamental step for anyone who is troubleshooting, optimizing or securing a network. Recommended Pre-Requisites None – this is great introductory material Included Course Materials • High-quality audio and visual training modules • Presentation slides and handouts Duration • Self-paced study • Seven modules totaling 4 hrs, 37 min Participants Learn About • Analyzing Switched Networks • Analyzing and Troubleshooting Ethernet Networks • Pattern Analysis: Quick Identification of Bad Applications • References and Resources for Protocol Analysts • Introduction to Network Analysis (Part 1 & 2) • Hot Tools 2003 Other Suggested Training • Advanced Network Analysis • Network Analysis, Troubleshooting and Cyber Crime (E-Manual) • Introduction to Network Analysis Podbook • Advanced Network Analysis Podbook • Introduction to Network Analysis Video Seminar (with electronic manual) Complete Master Library Information: Web site: www.packet-level.com/library/ E-mail: firstname.lastname@example.org Introduction to Network Analysis ML-B101-3 Detailed Course Outline Analyzing Switched Networks Introduction to Network Analysis (Part 1 & 2) This module examines the reason why protocol analysis Network analyzers offer an insight into network is more difficult on switched networks than on hubbed communications that can increase the efficiency of networks. After defining the importance for listening to troubleshooting and help secure networks. This course switched network ‘noise,’ Laura offers several options for introduces the students to the functionality and tapping in and observing switched traffic using placement of network analyzers. Statistics on protocol spanning/mirroring, hubbing out, and remote switch usage, conversations, utilization and packet rates are monitoring. used for troubleshooting and security. Laura explains the various situations and reasons why Students learn how triggers and alarms can be used for she chooses one option or another and addresses the unattended analysis and how the ‘laying on of hands’ issue of tracking MAC (media access control)-layer errors process helps define overall network ‘personality’. in a switched environment. This unit also covers VLAN Latency testing techniques (wire and application (virtual LAN) traffic analysis, methods for analyzing full- processing testing), pattern analysis, and filtering are duplex network traffic, and the symptoms of a network also discussed from a real-world perspective. This course switch attack. is recommended for all IT personnel. Analyzing and Troubleshooting Ethernet Networks Hot Tools 2003 Starting with an examination of CSMA/CD, this course Every year Laura puts together a list of her favorite looks at the common errors found on Ethernet networks analysis and security testing tools. This year’s set (shorts, longs, CRC faults, alignment errors, jabber includes wired and wireless protocol analyzers, packets, etc.) and defines their most probable causes. vulnerability scanners, OS fingerprinters, multiple The module also examines full-duplex issues, collision steganography applications, data injectors/manipulators, and broadcast domains. antennas, and multifunction tools that’ll make anyone’s head spin. Pattern Analysis: Quick Identification of Bad Applications Laura provides a brief description of each tool and gives examples of how these tools can be used to test or Learn to recognize faulty network patterns without troubleshoot networks. Some tools are there just for fun! learning the whole protocol stack or application functionality. Patterns examined include repetitive sets, Many of these tools are contained on Laura’s Lab Kit large delays, unanswered requests, stupid file transfers, (available at www.podbooks.com). disconnections, retransmissions, route problems, improper redirection, brain-dead application, and SYN-ful applications. References and Resources for Protocol Analysts Where can analysts look to determine who registered the port number used by an application or to find the port numbers used by various Trojans? What if the analyst needs to find an attack signature for an IIS attack? This unit provides a listing of sites and books that will support network analysis work.
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