Tuesday, February 7, 2017

Wireshark Lab #1


  • Start Wireshark
 
  •   Select your Ethernet or Wireless network connection (Double Click on it)


  •  Stop the auto capture of packet data...

  •  Get ready to restart the capture of data... but before you do, be ready to click on a web page link... not yet, just be ready, Do the following quickly... 
    • Start capture (and click capture with out saving)
    • click on this link to a web page
    • Stop the capture of packet data



  •  You should see an HTTP "get" packet like this... Scroll around to find it mixed in all the packets that were scanned.
    • GET /cyberSecuritySVCTE/wireshark/wireshark_lab_001.htm HTTP/1.1
  •  Is it kinda hard to find this specific HTTP "get" packet?
  • Let's try doing while using a filter
  • In the top left display filter field, type HTTP
  • The field will turn green, indicating that this is a valid Wireshark display filter



  •  Cool, now you see just the HTTP packets. and specifically you can see the HTTP "Get" packet where your browser requested the load of a web page.
  • You can click on the "Packet Details" section in the middle section of the display, and see an expanded view of the details of this packet

Question time:
  1. What is the top URL of the web site this HTTP  "get" packet came from? 
    •  GET /cyberSecuritySVCTE/wireshark/wireshark_lab_001.htm HTTP/1.1
  2. How did you find it? 
    • Take a screen shot to turn in
  3. What is the destination IP address?  Is it for the requested page or somewhere else?
    • Take a screen shot to turn in

How To Capture And Markup Your Assignment

To capture the packet data and save it to a Google or Word doc and then turn it in as a PDF do the following:
  • in wireshark, capture the packets, and highlight the specific one you want to look at
  • in the Packet details frame "right" mouse click and select "expand all"
  • Then you will want to copy the packet data and paste it into a Google or Word doc
  • Paste this in a Doc and highlite the sections as you answer the Lab questions



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