Problem 1 (10 points): ARP Consider the network setting in the figure below. Node A and node B are both in a LAN behind the NAT. 143.89.160.192/26 Server Router II 12 13 220.32.19.34 143.89.160.128/25 192.168.0.2 00:0A:45:B5:34:53 NAT 143.89.160.200 192.168.0.3 04:77:ED:78:00:A0 192.168.0.1 00:0A:45:B5:34:55 B a) (5pts) Assume the ARP table of node A is initially empty. Suppose node A wants to send an IP datagram to node B. Fill in the following boxes which represent the corresponding headers of the messages. Use N/A if not applicable. Messages ARP request ARP reply IP in Ethernet frame Source MAC Destination MAC Source IP Destination IP b) (5pts) Show the routing table at Router with entries related to this figure only. Subnet number Subnet Mask Next Hop