Suppose now that the leftmost router in Figure 6.33 is replaced by a switch. Hosts A, B, C, and D and the right router are all star-connected into this switch. Give the source and destination MAC addresses in the frame encapsulating this IP data-gram as the frame is transmitted (1,) from A to the switch, (ii) from the switch to the right router, (iii) from the right router to F. Also give the source and destination IP addresses in the IP data-gram encapsulated within the frame at each of these points in time.

Figure 6.33

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els rera D Subnet 1 Subnet 3 Subnet 2