![]() If told to do so by your instructor, save the capture file and then close Wireshark. Examine the Source and Destination fields. Expand Header checksum, examine the contents, and then collapse the selection. Expand Flags, examine the Fragment offset, Time to live, and Protocol fields, and then collapse the section 13. Expand Differentiated Services Field, examine the values of the Total Length and Iden- tification fields, and then collapse the section. ![]() Examine the values for the Version and Header length fields. from ) Figure 3-21 Selecting the IPv4 protocol to examine the IPv4 packet header 10. In the packet details pane the middle pane), expand Internet Protocol Version 4, as shown in Figure 3-21. Select a TCP packet in the packet list pane (the upper pane). In Wireshark, click Capture on the menu bar and then click Stop (or click the Stop icon on the toolbar). Type exit and press Enter in the command prompt window to close it. If you don't know the IPv4 address of a host on your network, ask your instructor NOTE 6. Ping the IPv4 address of a computer on your local network. Use the Start menu search box or the Search box on the task bar. Locate the first one showing real-time traffic under the Traffic column, select it, and then click Start. Click the Capture menu, and then click Options. Alternately, use the Start menu search box Windows 7 or the Search box on the taskbar Windows 10), type Wireshark, and then click Wireshark in the resulting list.) 2. In Windows 10, click the Start button, click All apps, and then scroll down and then click Wireshark in the menu. (In Windows 7, click the Start button, point to All Programs, and then click Wireshark. You may capture your own data to analyze, or you may start Wireshark, open the cho3_IPv4Fields.pcapng file available from the Student Companion Web site, and skip to Step 8. ![]() Description: This project shows you how to capture packets on a network, select a specific packet, and examine the IPv4 header data for the packet. Transcribed image text: Hands-On Project 3-1: Examining an IPv4 Packet Header With Wireshark Time Required: 20 minutes Objective: Learn to use Wireshark to examine the fields in an IPv4 header. ![]()
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