5. An organization is assigned the following address space: 25.45.192.0/18. This space is divided as follows: N2 gets assigned 25.45.204.0/22. N1 needs capacity for at least 500 hosts. (a) Assign a possible network ID for N1, N3, N4 and N5, trying to minimize number of table entries in each router. State how many hosts can be allocated in each subnetwork with your choice. (b) Write the routing tables for each router. Include the default route. (c) Find the destination network for a packet coming from N2 to R2 with destination address: 25.45.203.146. Show which routing table entries are matched in each router.