The screen shot of Wireshark output after filtering the 'icmp' messages. ICMP echo request: a) Examine the protocol type and time to live fields in the IP packet that carries the first ICMP Echo Request. ICMP packet doesn't have source and destination port numbers. Why? b) Study the ICMP message and what are the fields does ICMP packet have? Check the number of bytes for the checksum, sequence number and identifier fields. c) Identify the data bytes in request message and note the corresponding character sequence in third pane of Wireshark window. What is contained in this data field? (10 marks) ICMP echo reply: a) Compare the message identifier and sequence number in the reply message with the equivalent numbers in the request message.(5 marks) b) Recognize the data bytes in the reply message and compare the data sequence with that in the request message.(5 marks) c)To support the above questions 1 \& 2, please provide screen dumps of the Wireshark packets you have captured.i.e. Like the screen dumps shown above in the procedure.(10 marks)