Network Routing and Switching Assignment

Objectives - This assessment task requires you to demonstrate your knowledge of basic routing concepts by completing a number of exercise questions. The questions are designed to help you to achieve the unit learning outcomes as listed in the unit profile.

Assessment Requirements - There are 3 main questions with some sub-questions and the requirements are stated for each one. You must answer all questions and their sub-questions.

Question 1 - Address usage

Consider the following classless address block: 154.78.177.3/27

List the addresses from this block that would be used as:

a) the network address,

b) the direct broadcast address, and

c) the range available for hosts to use

Show the steps you took to arrive at your answers.

Question 2- Allocating subnets from a block

A company has been granted a block of addresses which includes the address 138.77.216.5/24. Answer the following questions, showing your calculations.

a) Calculate the network address of this block and how many host addresses including special addresses this block can provide.

b) Create the following 6 subnets for this company by calculating the subnet address for each subnet. Answer this question by filling in the table in the Answer template. Use CIDR format for the mask.

I. 2 subnets with 32 addresses each

II. 4 subnets with 16 addresses each

c) After some time, the company decides that it wants another subnet with 1,024 addresses. Explain whether this can be allocated from the existing block.

Question 3 - Network Tools (Windows)

Often the best way to gain an initial familiarity with network tools is to simply use them, at a basic level in exploratory mode as suggested in some of the tutorial exercises. Netstat and Tracert are included in Windows, while Wireshark is free to download and install. Explore Wireshark, Netstat and Tracert, then complete this question.

a) A wireshark scan has produced a packet capture, saved to a file named wireshark_capture01.pcapng and available on the Unit website. Download the file and open it in Wireshark, then answer these questions about the scan:

i. Very briefly summarise in your own words the content in each of the three horizontal display windows in Wireshark.

ii. In Frame 3, what brand of computer launched this scan and what was its IP address? State where this information is found.

iii. Briefly explain the exchange event captured in frames 4 - 6.

iv. Describe in your own words two specific network problems that a network administrator could use Wireshark for as a troubleshooting tool?

b) A 'NETSTAT -aon' command has given the output below (excerpted). Briefly describe each column heading, and the states LISTENING, ESTABLISHED and CLOSE_WAIT.

Active Connections

Proto    Local Address                   Foreign Address           State                    PID

TCP       10.0.0.58:139                 0.0.0.0:0                    LISTENING

TCP       10.0.0.58:5040               0.0.0.0:0                    LISTENING            7480

TCP       10.0.0.118:139               0.0.0.0:0                    LISTENING                 4

TCP       10.0.0.118:52450           52.63.165.133:443      ESTABLISHED      14080

TCP       10.0.0.118:52458           104.116.191.195:443   CLOSE_WAIT        8912

TCP       10.0.0.118:52791           40.100.151.2:443        ESTABLISHED      22400

TCP       10.0.0.118:52811           162.125.34.129:443     ESTABLISHED       4696

TCP       10.0.0.118:52820           34.232.224.128:443     CLOSE_WAIT        4696

TCP       10.0.0.118:52879           162.125.34.129:443     ESTABLISHED      4696

...

c) Do a TRACERT on your computer to www.google.com. Paste the output to your assignment answer template and discuss the information being displayed.

Attachment:- Assignment File.rar