(Answered): Consider the network given below. Each router (R1, R2 and R3) has four interfaces. The IP addresses ...

Consider the network given below. Each router (R1, R2 and R3) has four interfaces. The IP addresses assigned to each interface is given. The local networks (A,B,C,D,E and F) are given with their network prefix 192.168.64/19 192.168.128/17 A 192.168.128.1 192.168.64.1 0 0 10.0.1.2 10.0.2.2 192.168.321 3 R1 1 3 R2 1 ? 10.0.2.1 2 192.168.28,2 10.0.3.1 192.168.32/20 10.0.3.2 0 192.168.16.1 R3 1 192.168.28/22 D 3 E 192.168.28.1 2 192.168.24.1 192.168.16/21 192.168.24/22 a) If there is a host computer with an IP address of 192.168.70.12, which local network should that host computer be in? What subnet mask that host is using? (6 points) b) In the Figure below, a single entry in the R2's routing table is given. What should be the destination IP address field if R2 is forwarding all packets that are addressed to networks D,E and F though its interface 2 with this single entry? (6 points) Destination Next Hop Interface 10.0.3.1 0 ? c) The routing tables of R1 and R3 are given below. Assume that a packet is sent from a host with 192.168.70.12 IP address to another computer on network F. Explain which path this packet will follow? Indicate which entries in the routing tables of R1 and R3 are used. If you think R2 also is on the way of this packet, indicate its relevant entries as well. (8 points) RI R3 Destination Destination default 10.0.1/24 10.0.2/24 192.168.0/17 192.168.28/22 192.168.128/17 Next Hop Interface 10.0.1.1 3 3 1 10.0.2.2 1 2 0 default 10.0.3/24 192.168.16/21 192.168.24/22 192.168.28/22 Next Hop Interface 10.0.3.1 0 0 1 2 3