College of information sciences and technology

Info icon This preview shows pages 3–6. Sign up to view the full content.

View Full Document Right Arrow Icon
College of Information Sciences and Technology Networking and Telecommunications: Wireshark TCP ©Copyright 1999-2015 | The Pennsylvania State University, College of Information Sciences and Technology Page 3 Step 3 Enter the following URL into your Firefox browser Your browser will display the upload page for TCP Wireshark Lab . Step 4 Click the browse button and select scarlet.txt on your desktop and click the “Open” button. The location of the file will now show up in the box next to the browse button. Now click the ‘Upload A study in scarlet.txt file’ button. You should now see the “Congratulations!” screen.
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
College of Information Sciences and Technology Networking and Telecommunications: Wireshark TCP ©Copyright 1999-2015 | The Pennsylvania State University, College of Information Sciences and Technology Page 4 Stop Wireshark packet capture by clicking on the icon that looks like a Network Card with a red ‘X’ sign on it. It is 4th from the lef on the tool bar. Your Wireshark window should look similar to the window shown below.
Image of page 4
College of Information Sciences and Technology Networking and Telecommunications: Wireshark TCP ©Copyright 1999-2015 | The Pennsylvania State University, College of Information Sciences and Technology Page 5 Before analyzing the behavior of the TCP connection in detail, let’s take a high level view of the trace. First, filter the packets displayed in the Wireshark window by entering “tcp” (lowercase, no quotes, and don’t forget to press the “Apply” key afer typing!) into the display filter specification window towards the top of the Wireshark window. What you should see is series of TCP and HTTP messages between your computer and 192.168.0.5. You should see the initial three-way handshake containing a SYN message. You should see an HTTP POST message and a series of “HTTP Continuation” messages being sent from your computer to 192.168.0.5. This is Wireshark’s way of indicating that there are multiple TCP segments being used to carry a single HTTP message. You should also see TCP ACK segments being returned from 192.168.0.5 to your computer. Answer the following questions: 1. What is the IP address and TCP port number used by the client computer (source) that is transferring the file to 192.168.0.5? To answer this question, it’s probably easiest to select an HTTP message and explore the details of the TCP packet used to carry this HTTP message, using the “details of the selected packet header window”.
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '16
  • Transmission Control Protocol, Pennsylvania State University, Information Sciences, College of Information Sciences and Technology

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern