Computer Networking: A Top-Down Approach, 8th Edition. Chapter 4.

An organization has domain address 200.1.1.0/24 and uses subnetting to partition and allocate addresses to four departments: A, B, and C. A single router is used to interconnect all four departmental LANs. The router has four interfaces: intA, intB, and intC connected to the three departmental LANs and into connected to the ISP router. The forwarding table for the router is given below. Give the range of the addresses allocated to each department. Indicate any addresses currently not allocated to the three departments. Dest. Net or Host/Length 200.1.1.0/28 Next hop or Address ranges: Interface intA Dept. A: 200.1.1.0/26 intB Dept. B: 200.1.1.16/28 intc Dept. C: 0.0.0.0 ISP router Unallocated: ISP router into