In a Wireshark class, students will learn the fundamentals of using Wireshark for packet analysis and network troubleshooting. The class typically covers the following topics: 1. Introduction to Packet Analysis: - Understanding the importance of packet analysis in network troubleshooting and security. - Overview of network protocols and their role in packet communication. 2. Wireshark Installation and Setup: - Downloading and installing Wireshark on different operating systems. - Granting necessary permissions for packet capture. 3. Capturing Packets: - Selecting the appropriate network interface for capturing packets. - Starting and stopping packet capture. - Configuring capture options, such as promiscuous mode and packet filters. 4. Navigating the Wireshark Interface: - Familiarizing with the main components of the Wireshark window. - Understanding the packet list pane and its columns. - Exploring the packet details pane and various protocol layers. 5. Filtering and Display Options: - Using display filters to focus on specific packets of interest. - Applying filters based on protocols, IP addresses, ports, and other packet attributes. - Customizing column display and packet summary information. 6. Analyzing Packet Details: - Understanding the structure of a packet, including Ethernet, IP, TCP/UDP, and application layers. - Examining packet headers and payload. - Interpreting key fields, flags, and protocol-specific information. 7. Following Streams and Conversations: - Identifying and tracking network streams. - Following TCP/UDP streams to analyze complete conversations. - Extracting files and media from captured packets. Throughout the class, students will gain hands-on experience by working with Wireshark in practical exercises and case studies. They will develop the skills necessary to efficiently capture, analyze, and interpret network packets using Wireshark, enabling them to troubleshoot network issues effectively and ensure network security.