Question: Consider the following network where A, B, C, D, E, F are hosts, R is a router and S is a switch. Hosts A,

Consider the following network where A, B, C, D, E, F are hosts, R is a router and S is a switch. Hosts A, B, C are connected to router R. Hosts D, E, F and router R are all star-connected into switch S. Suppose the router R and switch S have the forwarding tables for all the hosts of the network. A B R Router Interface 1 2 3 4 3 The IP addresses and MAC addresses of the hosts and router are given in the following tables. Host IP Address MAC Address A 222.110.1.2 11-11-11-11-11-11 B 222.110.2.2 22-22-22-22-22-22 222.110.3.2 33-33-33-33-33-33-33 D 222.110.4.2 44-44-44-44-44-44-44 E 222.110.4.3 55-55-55-55-55-55 F 222.110.4.4 66-66-66-66-66-66-66 a) from B to R (2 marks) b) from R to S (2 marks) c) from S to E (2 marks) IP Address 222.110.1.1 222.110.2.1 3 222.110.3.1 222.110.4.1 2 D MAC Address AA-AA-AA-AA-AA-AA BB-BB-BB-BB-BB-BB CC-CC-CC-CC-CC-CC DD-DD-DD-DD-DD-DD 1) For the given network, how many subnets are there? (2 marks) 2) Suppose Host A sends an IP datagram to Host D. Please give the source and destination IP addresses of the IP datagram. (2 marks) 3) Suppose Host B sends an IP datagram to Host E. Please give the source and destination MAC addresses of the frames that encapsulate the IP datagram as the frames are transmitted. Consider the following network where A, B, C, D, E, F are hosts, R is a router and S is a switch. Hosts A, B, C are connected to router R. Hosts D, E, F and router R are all star-connected into switch S. Suppose the router R and switch S have the forwarding tables for all the hosts of the network. A B R Router Interface 1 2 3 4 3 The IP addresses and MAC addresses of the hosts and router are given in the following tables. Host IP Address MAC Address A 222.110.1.2 11-11-11-11-11-11 B 222.110.2.2 22-22-22-22-22-22 222.110.3.2 33-33-33-33-33-33-33 D 222.110.4.2 44-44-44-44-44-44-44 E 222.110.4.3 55-55-55-55-55-55 F 222.110.4.4 66-66-66-66-66-66-66 a) from B to R (2 marks) b) from R to S (2 marks) c) from S to E (2 marks) IP Address 222.110.1.1 222.110.2.1 3 222.110.3.1 222.110.4.1 2 D MAC Address AA-AA-AA-AA-AA-AA BB-BB-BB-BB-BB-BB CC-CC-CC-CC-CC-CC DD-DD-DD-DD-DD-DD 1) For the given network, how many subnets are there? (2 marks) 2) Suppose Host A sends an IP datagram to Host D. Please give the source and destination IP addresses of the IP datagram. (2 marks) 3) Suppose Host B sends an IP datagram to Host E. Please give the source and destination MAC addresses of the frames that encapsulate the IP datagram as the frames are transmitted.

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