4. Consider three LANs interconnected by two routers, as shown in the following figure. Subnet 1 Subnet 3 Subnet 2 a. Assign IP addresses to all of the interfaces. For Subnet 1 use addresses of the form 192.168.2.xxx; for Subnet 2 uses addresses of the form 192.168.3.xxx; and for Subnet 3 use addresses of the form 192.168.1.xxx b. Assign MAC addresses to all of the adapters. (For a and b, your answer can be arbitrary, as long as they conform to the correct address range and format. Your answer to c depends on your answers to a and b.) c. Consider sending an IP datagram from Host A to Host E. Suppose all of the ARP tables are up to date. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from A to the left router Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the left router to the right router. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the right router to the Host E 4. Consider three LANs interconnected by two routers, as shown in the following figure. Subnet 1 Subnet 3 Subnet 2 a. Assign IP addresses to all of the interfaces. For Subnet 1 use addresses of the form 192.168.2.xxx; for Subnet 2 uses addresses of the form 192.168.3.xxx; and for Subnet 3 use addresses of the form 192.168.1.xxx b. Assign MAC addresses to all of the adapters. (For a and b, your answer can be arbitrary, as long as they conform to the correct address range and format. Your answer to c depends on your answers to a and b.) c. Consider sending an IP datagram from Host A to Host E. Suppose all of the ARP tables are up to date. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from A to the left router Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the left router to the right router. Please give the source IP, source MAC, destination IP and destination MAC when the datagram is sent from the right router to the Host E