In the Windows Command Prompt, use the ping command to ping the web server www.google.com then start up the Wireshark packet sniffer, and begin Wireshark packet capture. When the Ping command terminates, stop the packet capture in Wireshark. and answer the following questions:

1. Examine one of the ping request packets sent by your host. What are the ICMP type and code numbers? What other fields does this ICMP packet have? How many bytes are the checksum, sequence number and identifier fields?

2. Examine the corresponding ping reply packet. What are the ICMP type and code numbers? What other fields does this ICMP packet have? How many bytes are the checksum, sequence number and identifier fields?

B) In the Windows Command Prompt, use traceroute command (tracert) to trace the route of web server www.google.com then start up the Wireshark packet sniffer and begin Wireshark packet capture. When the traceroute, command terminates, stop the packet capture in Wireshark. and answer the following questions:

1. Examine the ICMP echo packet in your screenshot. Is this different from the ICMP ping query packets in the first half of this question? If yes, how so?

2. Examine the ICMP packets received by the source host. How are these packets different from the ICMP error packets? Why are they different?

3. Within the tracert measurements, is there a link whose delay is significantly longer than others?