In this lab, we examine the contents of an Ethernet frame sent by the data-link layer. We find the value of different fields such as destination and source link-layer addresses, the value of the protocol field, which shows which payload is being carried by the frame, and so on. Assignment -
Start your web browser and clear the browser's cache memory, but do not access any website yet.
Open the Wireshark and start capturing. ·
Go to your browser and retrieve any file from a website. Wireshark starts captur- ng packets.
After enough packets have been captured, stop capturing and save the captured
Frame In the packet list pane, select any packet that is initiated from your computer. In the packet detail pane, expand the Frame (packet at the data-link layer)
Questions Note that the Ethernet filters the preamble and FSD fields; they are not passed to Wire- shark. Also most Ethernet interfaces either do not supply the CRC to Wireshark or are not configured by their driver to do so. You may notice that the Wireshark can capture padded bytes in request messages, but not in the reply messages. Using the captured information, answer the following question in your lab-report sheet.