3A. A router has the following (CIDR) entries in its routing table: The router can deliver packets directly over interfaces 0 and 1. or it can forward packets to routers RI, or R2. Address/mask Next hop 220.46.56.0/22 Interface 0 15.46.60.0/22 Interface 1 192.53.40.0/23 Router default Router 2 1) Give the no of addresses, first usable address & last usable address for the first three entries in the router table. ii) For each of the following IP addresses, what does the router do if a packet with that address arrives? Explain (a) 15.46.63.10 (b) 220.46.57.14 (c) 220.46.52.2 (d) 192.53.40.7 (5M)