2. (15 Points) Consider the topology shown in Figure. Denote the three subnets with hosts as Networks A, B, and C. Denote the subnets without hosts as Networks D, E, and F. a. Assign network addresses to each of these six subnets, with the following constraints: All addresses must be allocated from 200.150.246/23; Subnet A should have enough addresses to support 250 interfaces, Subnet B should have enough addresses to support 120 interfaces; and Subnet C should have enough addresses to support 120 interfaces. Of course, subnets D, E and F (interior subnets for routers) should each be able to support two interfaces. For each subnet, the assignment should take the form ab.c.d/x. b. Using your answer to part (a), provide the forwarding tables (using longest prefix matching) for each of the three routers