Run Wireshark $($WS$)$ and use your browser to make a request to $3$gpp$.$org.

Stop the WS capture and save it in a $.$pcap file F$3.$ Check that WS can open this file.

Use the specified frames to answer the questions below $($double click on parts of packets in the frames to get more

information if needed$).$ Submit a file F$4$ that has your answers.

$2\mathrm{.}1$ Give the WS frame number for a $[$SYN$]$ TCP handshake packet sent to $3$gpp$.$org.

$2\mathrm{.}1\mathrm{.}1$ Give the source IP address in this frame.

$2\mathrm{.}1\mathrm{.}2$ Is this source IP a public IP$?$ Explain.

$2\mathrm{.}2$ Give the WS frame number for a DNS query response frame with an Answers field that has an IP address for $3$gpp$.$org.

$2\mathrm{.}2\mathrm{.}1$ Give the source MAC address in this frame. Whose MAC address is this? Explain.

$2\mathrm{.}2\mathrm{.}2$ Give the source IP address in this frame. Whose IP address is this? Explain.

$2\mathrm{.}2\mathrm{.}3$ Name each protocol that appears in this frame and name the layer each protocol belongs to $($use the Internet TCP$/$IP model in which the layer names are application, transport, network, link, physical$).$