Solved–Assignment 2: Network Protocol Analysis Using Wireshark– Solution

Description

Wireshark is a free and open-source packet sniffer and network protocol analyser tool. It helps to capture network packets and understand the structure of different networking protocols.

Instructions:

Install Wireshark (download from www.wireshark.org), and learn how to capture packets and filter the required content.
A specific application is assigned to each student (refer to Table 1 below). Each student needs to perform various activities according to functionalities available in the assigned application and collect the traces for the application using Wireshark. Application-specific activities, if any, are mentioned in the table.
You should carry out your experiments across different network conditions including different time(s) of the day and locations (e.g., lab or hostel, etc.).
It is advisable to provide only trace-based description while answering the questions. While answering, provide snapshots of the traces in the report and highlight the content as and when required.
If something is missing/incorrect in a problem description, clearly mention the assumption with your answer.
Be precise with your answers; there is no credit for being unnecessarily verbose (may award you negative marks for the same). Unless specified otherwise, do not describe the tool or application or protocol in general.

Questions:

1. List out all the protocols used by the application at different layers (only those which you can figure out from traces). Study and briefly describe their packet formats.

2. Mention and explain the observed values for at least 5 fields of the protocols mentioned in question 1. Example: Source or destination IP address and port number, Ethernet address, protocol number, etc.

3. Explain all relevant protocols used by the application to achieve the important functionalities of the application (varies with alpplication). Give reason for using those protocols. For example, important functionalities for video streaming are ‘download’, ‘play’, ‘pause’, etc.

4. Mention at least two functionalities (mentioned in question 3) of the application and show the sequence of messages exchanged by the application to achieve those functionalities. Check whether there are any handshaking sequences in the application. Briefly explain the handshaking message sequence, if any.

5. Calculate the following statistics from your traces while performing experiments at three different times (morning, afternoon, night) of the day: a) Throughput, b) RTT, c) Packet size, d) Number of packets lost, e) Number of UDP & TCP packets, f) Number of responses received with respect to one request sent. Report the observed values in your answer, preferably using tables.

6. Check whether the content is being sent by the application from the same source during the three different times of the day used in question 5. If multiple sources exist, list out their IP addresses, and explain the reason behind this.

Method of submission:

Submit a soft copy of the report, preferably in PDF format, together with your collected traces in a zip file on Moodle. The name of the zip file should be like “Your_Rollno.zip” (example: “140101002.zip”).
Files submitted without proper naming format will not be evaluated.

If your trace file size is larger than 2 MB, (as you will not be able to upload the file on Moodle) you are advised to provide the OneDrive/Google Drive/Dropbox link of the traces in your report.

Note:

The deadline for submission must be strictly followed. Any submission done after the deadline will not be considered for evaluation.
The report should not contain more than 6-7 pages.

Plagiarism (copy cases) and other unfair means will be strictly punished by awarding NEGATIVE marks (equal to the maximum marks for the assignment).

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Table 1: Application Allocation to Students

Sl. No. Application Name/Type Roll Number of Student Name of Student
1 Dailymotion 150123034 ROHIT KUMAR
Activity: Uploading and Downloading videos 160101011 AKHIL CHANDRA PANCHUMARTHI
160101017 AUTONU KRO
170101001 AAYUSH PATNI
170101002 ABHISHEK JAISWAL
170101003 ADITYA VARDHAN GARA
170101004 AJINKYA SHIVASHANKAR SHIVASHANKAR
170101005 AMAN MISHRA
170101006 AMAN RAJ
170101007 ANIKET RAJPUT
170101008 ANNANYA PRATAP SINGH CHAUHAN
170101009 ANUBHAV TYAGI
170101011 ARANYA ARYAMAN
2 Vimeo 170101012 ARPIT GUPTA
Activity: Uploading and Downloading videos
170101013 ARYAN AGRAWAL

170101014 AVIRAL GUPTA

170101015 AVNEET SINGH CHANNA

170101016 BANDAGONDA SHRI RAAM REDDY
170101017 CH ROHITH RAVI PRABHU TEJA
170101018 CHALUMURU BHAVANI DATT
170101019 CHIRAG GUPTA
170101020 DEEPAK GAMI
170101021 DEVAISHI TIWARI
170101022 DEVANSH GUPTA
170101023 FUGARE ASHISH DILEEP
170101024 GEDDAM IKYA VENUS
170101025 HANSRAJ PATEL
3 Hotstar video streaming 170101026 HARDIK KATYAL
170101027 KADAM KIRAN ZATINGRAO
170101028 KANCHUGANTLA RHYTHM
170101029 KAPIL JANGID
170101030 KARTIK GUPTA
170101031 KEERTI HARPAVAT
170101032 KETHAVATH NAVEEN
170101033 LUCKY
170101034 MAKHARIA AAYUSH
170101035 MANAN GUPTA
170101036 MANI MANNAMPALLI
170101037 MAYANK CHANDRA
170101038 MAYANK WADHWANI
4 Dropbox 170101039 NAGULAPALLI KASI VENKATA SAI KIRAN
Activity: Uploading and Downloading large files
170101040 NAKKA SRIHARSHA
170101041 NAVEEN KUMAR GUPTA
170101042 NAYANJYOTI DEURY
170101043 PARTHA PRATIM MALAKAR
170101044 PARVINDAR SINGH
170101045 Piyush Gupta
170101046 PRABHAT KUMAR
170101047 PRANAY GARG

170101048 PRANSHU SRIVAS

170101049 Priyanshu Singh

170101050 PULIKONDA ROOP SAI RAKESH GUPTA

170101051 RAJANALA HARSHAVARDHAN REDDY
170101052 RASHI SINGH

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5 Live Sports Streaming

6 NPTEL/Coursera video lectures

7 Online games

8 Peer-to-peer networking

Note: Use any remote desktop application, like TeamViewer.

170101053 RAVI SHANKAR

170101054 RISHI PATHAK
170101055 ROHAN NIGAM
170101056 ROUNAK PARIHAR
170101057 RUTVIK GHUGHAL
170101058 RYTHUM SINGLA
170101059 Sachin Giri
170101060 SANCHIT

170101061 SAYAK DUTTA

170101062 SAYALKUMAR SUBHASH HAJARE

170101063 SHIVAM BANSAL

170101064 SHUBHAM KUMAR
170101065 SHYAM SUNDAR RAV
170101066 SOUMIK PAUL

170101067 SOURABH JANGID
170101068 SUNNY KUMAR
170101070 THAHIR MAHMOOD POOVADA

170101071 THEEGALA RAKESH REDDY
170101072 TIKARAM MEENA
170101073 TUSHAR RAJENDRA BHUTADA
170101074 UMANG
170101075 UTKARSH JAIN
170101076 VAKUL GUPTA
170101077 VEMURI SAHITHYA
170101078 VINEET MALIK
170101079 VINIT KUMAR
170101080 VIVEK KUMAR
170101081 UDBHAV CHUGH

170101082 LAVISH GULATI
170101083 UTKARSH SANTOSH MISHRA
170101084 MAYANK BARANWAL
170101085 Sparsh Sinha
170101086 SHIVANG DALAL
170101087 SIDDHARTH AGARWAL
170101088 SHASHANK SHARMA
170123001 AAYUSH BANSAL
170123002 ABHINAV ANAND
170123003 ABHINAV R
170123004 ADITYA RAJ
170123005 ANKIT KUMAR KANOJIYA
170123006 ANKIT TRIPATHI

170123007 ANKUR PRAMOD INGALE
170123008 ARAV GARG
170123010 ARYAN RAJ
170123011 ASHISH AGARWAL
170123012 AYUSH DALIA
170123013 BAGAL SATEJ BABANRAO
170123014 BARISH BHAGAT
170123015 BOJJA SAI PREETHAM
170123016 CHINDAM SUJANA MAITHILI
170123017 DEV PRIYA GOEL

170123018 GARVIT MEHTA

170123019 GARVIT SARJARE
170123020 harit gupta

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9 Google Hangout

10 DC++

Activity: Uploading and Downloading large files

11 Twitch (live streaming video platform)

170123021 HEMANT YADAV

170123022 JAYANT PATIDAR
170123023 KEDAR NATH
170123024 KESHETTI SAI KUMAR
170123025 KOMMINENI NIKHIL
170123026 KONDRU SURAJ
170123027 KOTTA PREM SUJAN
170123028 KRISHNA PRIYATAM D
170123029 KUSHAGRA MAHAJAN
170123031 MALISETTI KIRAN KARTHEEK
170123032 MANNE HEMA PRIYA
170123033 MAYANK SAHARAN
170123034 MIHIR YADAV
170123035 MOGILLAPALLI NIKHIL
170123036 MOHIT DHAKA

170123037 MOHIT KUMAR MEENA
170123038 MRIGANKA BASU ROY CHOWDHURY
170123039 NAKKA LAHARI
170123040 PARV SOOD
170123041 RUPAM SAHU
170123042 S SAI VAMSHI

170123043 SAHILPREET SINGH THIND

170123044 SAKSHI SHARMA

170123045 SAURABH KUMAR
170123046 SHALINI KUMARI
170123048 SIDDHANT SINHA
170123050 SUMEDH RAVI JOURAS
170123051 TANVI OHRI

170123052 TANYA CHAUHAN

170123053 TEJASVEE PANWAR
170123054 TUMARADA ADITYA
170123056 PRATHIK.S.NAYAK
170123057 KARTIK SETHI
170123058 ARUN KUMAR
170123059 SHRUTI DINESH AGARWAL
170123060 TRIKAY NALAMADA
170123061 MAHFOOZUR RAHMAN KHAN
170123062 DIVYANSH MANGAL
170123063 JOEL RAJA SINGH

170123064 AGNIV BANDYOPADHYAY

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