**Please show all work**

2. An organization is assigned the following address space: 23.78.128.0/18. This space is divided as follows: N1 gets assigned 23.78.128.0/20. N2, N3 and N4 need capacity for at least 2000 hosts each. (a) Assign a possible network ID for N2, N3 and N4. State how many hosts can be allocated in each subnetwork with your choice. (b) Write the routing tables for each router in CIDR format (example: x.x.x.x/xx + L1). Try to minimize number of table entries in each router. Include the default route. (c) Find the destination network for a packet coming from L8 with destination address 23.78.188.130. Show which routing table entries are matched in each router. N1 N2 L1 L2 L6 R1 R2 N3 L4 L5 N4 to Internet