If you are doing more than one destination, such as adding, just add on the filter: This ensures that the packet capture has both downstream (Client > Proxy) and upstream (Proxy > Server) conversations.

Support recommends that you use the Test client Source Machine IP and Destination IPs and/or resolved domain names of the Internet sites in question.įor example, here's a filter where the client IP is 10.4.50.32, and the site is with a resolved IP of 93.184.216.34 (resolve the IP on the client machine if in Transparent Proxy if in Explicit Proxy, resolve the IP through the Proxy CLI.

Web consoleĬreate a capture filter to capture the traffic. Tip: you can always use filter in Wireshark to just display the packets you want to see.You can run a simple packet capture from the HTTPS web console or command-line interface (CLI). You should use your own screenshot.ĭo you see any parallel connections your browser makes? If so, how many can you see in your screenshot? Again, use Wireshark to capture the traffic while you open up the page.Įxample screenshot below. Now, we will open a webpage with embeded objects (e.g., cnn.com which has a lot of images/videos embeded) in a browser. Example screenshot below.ĭescribe the TCP packets that you see, i.e., how each packet corresponds to TCP handshake, data transfer and closing connection steps. After the curl/wget is done, stop the capture in Wireshark. Warning: keep your other network activities to the minimum for a better experience, e.g., avoid streaming Netflix when capturing in Wireshark. Then you should be able to see packets flowing! Click the red square button on top to stop the capture. On the left side, select one (or more) interfaces that you want to capture from, then click “Start”. If you run into any problems, you can refer to for more detailed help. On Mac and Linux, you can also install from command line (homebrew/macports, yum install, apt-get install). You can find installation instructions here: We will use Wireshark, a network packet capture tool, to look at TCP packets when grabbing a webpage.

Download wireshark capture filter