Question 8 Consider ARP/RARP frame shown in Figure 8.1: Bit order 1 8|9 16 Hardware type Protocol type HLEN PLEN Operation (MAC) Sender hardware address HLEN - Hardware address length PLEN IP address length Operation 1 ARP request -2 ARP response -3 RARP request -4 RARP response Sender IP address (MAC) Target hardware address Target IP address Figure 8.1 ARP/RARP message format. (i) Explain in detail the entries into the last four fields (Sender MAC address, Sender [80%] IP address, Target MAC address, and Target IP address) for the following messages: 1. ARP Request; 2. ARP Reply; 3. RARP Request; 4 RARP Reply. (ii) Comment on the size (length) of each of these messages. Are all ARP/RAP messages of the same size? [20%]