FIT1047 Introduction to computer systems, networks and security – S2 2024

Assignment 3 – Networks

INSTRUCTIONS

Part 1a: Reflection (Hurdle - you MUST submit it in order to pass this assignment!)

Complete your reflection activities in Week 7 to Week 9 Ed Lesson and copy/paste them into a pdf file. Each week the reflection must have at least 100 words (relevant and     meaningful to the specific week).

Failure to submit all relevant  week’s reflections (missing all submissions or

incomplete submissions) will result in your assignment 1 having a maximum mark of

49% only. For example, if the overall combined mark is 61/100, it will be scaled to 49/100. If the overall combined mark is 44/100 then it will remain as 44/100.

You may use this template:

https://docs.google.com/document/d/18UIEJQeyarYW1pl8oDEaf--ubCdJ5LDf-9_jSLbGxrE/e dit?usp=sharing to write down your reflection.

Submit your reflection for this part (Part 1a) as a PDF file in Moodle.

Part 1b: WLAN Network Design and Security (25 marks)

For this part of the assignment, you will perform. a real-world WLAN site survey. Your task is to produce a map of part of a building that gives an overview of the wireless networks that are available, as well as an analysis of the network.

What you will need: a WiFi-enabled laptop (some smartphones also work, see below), and a place to scan. You have to perform. a survey of parts of the Monash Clayton / Malaysian campus.

You have to complete two tasks (a survey and a report).

Task 1.1: Survey (9 marks)

For Australian campus cohort:

Create a map and survey of (a part of) the following building on our Clayton Campus:

● Students with student number ending with “0”: Hargrave Andrew Library

● Students with student number ending with “1”: Sir Louis Matheson Library

● Students with student number ending with “2”: Learning and Teaching Building

● Students with student number ending with “3”: Menzies Building

● Students with student number ending with “4”: David Derham Law Building

● Students with student number ending with “5”: Learning Village

● Students with student number ending with “6”: Biomedical Learning and Teaching (BLTB)

● Students with student number ending with “7”: Mathematics & EAE

● Students with student number ending with “8”: Campus Centre

● Students with student number ending with “9”: Woodside Building

(You can find the location of the building here - Choosing Clayton campus)

For Malaysian campus cohort:

Create a map and survey of (a part of) any building of your own choice on our Malaysian Campus.

(You can find the location of the building here - Choosing Kuala Lumpur campus)

A simple floor plan will be sufficient, it does not have to be perfectly to scale. See Appendix A for an example. You may also use the Monash digital map as a basis. The map should be labelled with all relevant  information (e.g. dimensions, doors, walls and material such as wood or concrete or glass, if used for the discussion). Your survey should cover an area of at least 60 square metres (e.g. 6x10 metres, or 4x15, or two storeys of 6x5 each). Be sure to take the analysis in Task 1.2 into account, by designing your survey to include walls, doors etc. it will be easier to write something interesting in Task 1.2.

Furthermore, your survey must include at least three WiFi access points (APs). If you want,  you can create an additional AP with your phone (using “ Personal hotspot” or “Tethering” features).

For the survey, use a WLAN sniffing tool (see below) in at least eight different locations on your  map. For each location, record the  technical  characteristics  of  all  visible  APs. Depending on the scanning tool you use, you record features such as the network name (SSID-Services  Set  ID),  MAC  Address  (BSSID-  Basic  Services  Set  ID),  signal  strength (shown in multiple formats- %, dBm, graphs etc.), Signal to Noise Ratio (only captured in Apple Computers), 802.11 version(s) supported, band (2.4 or 5 GHz) and channel(s) used.

Add the gathered data from the survey into the map of the covered area. On the map you indicate the location of the access points and the locations where you took measurements. For the access points, use the actual location if you know it, or an approximation based on the observed signal strength (e.g. if you don’t know exactly where it is).

For each  measurement  point, you either add the characteristics directly into the map, or create a separate table with the details. You can submit several maps if you choose to enter data directly  into the  maps, or a single map if you use additional tables. Create the map yourself, do not use the mapping features available in some commercial (i.e., paid) WLAN sniffing tools.

Remark:

●   We  recommend you to go to your allocated building (for the purpose of doing this assignment)  before  6pm  on  weekdays. Some  buildings  may  have access control after 6pm or on weekends. Also, as per Monash policy, this unit (a year one unit) does  not  schedule  any  on-campus  activities  after  6pm.  Therefore  we  do  not recommend  you  to  conduct any on-campus  in-site activities after 6pm or on any weekends.

●    Do  not  enter  any  area  with  access  control  (e.g.  Woodside  Building  Room  G13 Cybersecurity   Lab).  You  do   not   need  to  enter  those  areas  to  conduct  your assignment. You can choose other alternative locations inside or outside the building instead.

●    In  any  circumstance,   if  there  are  some  teaching  activities  or  events  inside  any classroom, you should not enter the classroom to disturb the participants inside. You should  wait  until  they  have  left  the  room,  or  find an alternative  location for your analysis.

●    Even if you cannot enter any classroom or any room inside the building, you can still take the WiFi measurement in the open area or outside the building. Please refer to Appendix B for an example.

●   The Monash digital map does not contain any scale. You may use any other tools (e.g. any measurement app in your smartphone) or use Google Map (which contains measurement  scale)  to  compare  with  the  Monash  digital  map  for  dimension measurement.