Using Wireshark

Note: In some situation, you may need to install TCPDump/WinPCap. Just follow the instructions on the Wiresharks website.

From your PC or Laptop, setup a capture of all traffic (using Wireshark) and browse a web site of your choice (make sure it is a site you have NOT visited since last reboot or that you have cleared your DNS cache since that.

After browsing that site, ping that site using its DNS name.

Save your packet capture in a file named Lab3

Question 1: In the capture file, what packet numbers show the following:

The DNS resolution for the site browsed. (write the packet number and add a screenshot)

The establishment of the initial TCP connection to the web site (by that I mean the 3 packets that constitute the TCP 3-way handshake of the first connection to the site). (write the packet number and add a screenshot)

The packets showing the ping and ping responses. (write the packet number and add a screenshot)

Using Wireshark

Note: In some situation, you may need to install TCPDump/WinPCap. Just follow the instructions on the Wiresharks website.

From your PC or Laptop, setup a capture of all traffic (using Wireshark) and browse a web site of your choice (make sure it is a site you have NOT visited since last reboot or that you have cleared your DNS cache since that.

After browsing that site, ping that site using its DNS name.

Save your packet capture in a file named Lab3

Question 1: In the capture file, what packet numbers show the following:

The DNS resolution for the site browsed. (write the packet number and add a screenshot)

The establishment of the initial TCP connection to the web site (by that I mean the 3 packets that constitute the TCP 3-way handshake of the first connection to the site). (write the packet number and add a screenshot)

The packets showing the ping and ping responses. (write the packet number and add a screenshot)