Features, functions and basic operation of Ethereal/Wireshark Analyser

• Introduction and operation of Wireshark
• Live Capture and Live Capture settings
• Display options and basic interpretation
• Working with Display Filters and Capture Filters
• File Input and Output

Advanced features of Wireshark Analyser

• Preferences and user profiles
• Name resolution
• Packet Reassembly
• Expert Information
• Packet colorisation

Methodology and techniques of network analysis and troubleshooting

• What is packet analysis?
• Steps and techniques for analysing traffic
• Analysing Switched Ethernet - Tapping into the network
• Capturing wireless network traffic
• Measuring network delay and response time
• Measuring network throughput and overhead

Statistics and Baselining

• Terms and Overview
• Wireshark Statistics
• Application Profiles

Analysing networks and applications

• Fault isolation
• Typical network related problems
• Application types and typical application related problems

Switched Ethernet analysis

• Duplex & Speed Issues
• Spanning Tree operation and Spanning Tree analysis
• Analyzing VLANs, VLAN-Tagging

TCP/IP analysis of the network layer

• IP addressing
• Typical IP scenarios
• IP options
• ICMP, ARP and DHCP

TCP/IP analysis of the transport layer

• TCP functions
• Session Setup, Data Transfer and Session Teardown
• Window Mechanism and Window optimization
• TCP options (SACK, Window Scaling) and TCP timers
• UDP functions

Analysing and troubleshooting TCP/IP with Wireshark

• Wireshark preferences for advanced TCP/IP analysis
• Typical TCP/IP related problems
• Wireshark Expert Info messages and their meanings

TCP/IP applications

• HTTP
• FTP
• SMB
• DNS
• SSL

This course is aimed at network administrators, network managers and all technical staff who are responsible for planning, implementing, and ensuring high performance operation of their data networks.

Delegates are required to attend the following course or have equivalent knowledge:

• Networking & TCP/IP Fundamentals (NWF)