Given an ICMP packet, answer the following questions? Justify your answers.

a) What is the maximum value of the pointer field in a parameter-problem message?

b) What is the minimum size of an ICMP packet? What is the maximum size of an ICMPpacket?

c) What is the minimum size of an IP packet that carries an ICMP packet? What is the maximum size?

d) How can we determine if an IP packet is carrying an ICMP packet?

e) Calculate the checksum for the following is the ICMP packet:

Type: Echo Request

Identifier: 456

Sequence Number: 03

Message: Hello