NOTE: Roll No. 53

Solve the following question

Consider a scenario in which you are given an IP address in the following format: 'x.0.0.0', where x=your roll no. + 110. (E.g., if your roll no. is 35, then x=35+110=145, and the IP address will be 145.0.0.0). Now you are asked to distribute the IP addresses (i.e., subnets) for UET Taxila having total of 4 departments. 3 of them requires 16,300 PC's each whereas, 1 department has 8000 PC's. (Note: Don't do subnetting. Just do calculations and discuss/comment in each case). i. Can you accommodate all the 4 departments using subnetting (i.e., Fixed Length Subnet Mask)? Explain. ii. If you use Variable Length Subnet Mask (VLSM) to accommodate the 4 departments, then how many IP addresses will be still available after allocations