Assignment: Subnetting In this assignment, you are required to re-organize our D

Question

Assignment: Subnetting

In this assignment, you are required to re-organize our Department's wired computer network. The first part of the assignment familiarizes you with the current network. The second part requires you to divide the current network into two sub-networks: a small one for the staff and a larger one for the students.

Part 1

Our senior academic Prof Dumbledore's Departmental desktop has the IP address 38.160.58.93/20. Based on this, please answer the following questions.

1. What is the network address of this network? [1 mark]

2. What is the network mask of this network? [1 mark]

3. What is the broadcast address in this network? [1 mark]

4. What is the lowest host IP address in this network? [1 mark]

5. Assuming that the router is assigned the largest available IP address in the range, what is the IP address of this network's router? [1 mark]

6. What is the largest host IP address in this network, excluding the router? [1 mark]

7. What is the maximum number of hosts that can be supported in this network? [1 mark]

Part 2

In this part, you are asked to partition the Departmental network address block to create separate staff and student sub-networks. Your network must be able to support up to 204 machines on the staff network (not counting the router) and up to 1678 machines on the student network (also not counting the router). You must choose the largest possible network address for the student network. You must then choose the smallest possible network address for the staff network. You must also choose the smallest possible size for the two sub-networks so that a visitor/guest network can be established in the future with the remaining network capacity.

Part 2A

Based on your partition, please answer the following questions that relate to the student network.

1. What is the network address of this network? [1 mark]

2. What is the network mask of this network? [1 mark]

3. What is the broadcast address in this network? [1 mark]

4. What is the lowest host IP address in this network? [1 mark]

5. Assuming that the router is assigned the largest available IP address in the range, what is the IP address of this network's router? [1 mark]

6. What is the largest host IP address in this network, excluding the router? [1 mark]

7. What is the maximum number of hosts that can be supported in this network? [1 mark]

Part 2B

Based on your partition, please answer the following questions that relate to the staff network.

1. What is the network address of this network? [1 mark]

2. What is the network mask of this network? [1 mark]

3. What is the broadcast address in this network? [1 mark]

4. What is the lowest host IP address in this network? [1 mark]

5. Assuming that the router is assigned the largest available IP address in the range, what is the IP address of this network's router? [1 mark]

6. What is the largest host IP address in this network, excluding the router? [1 mark]

7. What is the maximum number of hosts that can be supported in this network? [1 mark]

Explanation / Answer

Part 1.

Network ip address :38.160.48.0

Number of bits used for network id is 20 bits. Remaining 12 least significant bits are used for host id. Hence the network ip address will have zeros in those 12 bits and the rest as it is. Thus the network ip address is:

00100110.10100000.0011 0000.00000000

Or 38.160.48.0

2) Network mask will have the 12 least significant bits as 0's and the rest 20 most significant bits as 1's.

11111111.11111111.1111 0000.00000000

Or 255.255.240.0

3) Broadcast ip address will have

have the 12 least significant bits as 1's and the rest 20 most significant bits as it is.

00100110.10100000.0011 1111.11111111

Or 38.160.63.255

4) The lowest ip address in this network is the next ip address after the network ip address(range of ip addresses in this network: 38.160.48.1 - 38.160.63.255)

Lowest ip address : 38.160.48.1

5) The largest ip address available in this network is the address before the broadcast address:

38.160.63.254 is assigned to router.

6) The largest ip address excluding the router's ip address is:

38.160.63.253

7) The maximum number of host the network can support is:

2^12-2=4096-2=4094. If ip address of router is also to excluded, then it can support 4093.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.