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CL 307 NUCES Computer Networks Lab Report

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Subject
Computer Science
School
National University of Computer and Emerging Sciences
Type
Lab Report
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Page 1 of 16 March 25
th
, 2020
National University of Computer and Emerging Sciences
Laboratory Manuals
for
Computer Networks
(CL -307)
Course Instructor
Mr. Ibrahim Nadir
Lab Instructor(s)
Umer Shafqat
Salman Shoaib
Section
CS-6E
Semester
Spring 2020
Department of Computer Science
FAST-NU, Lahore, Pakistan

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, 2020
Lab Manual 07
Objective:
Analyzing the FTP packets using Wireshark
Lab Statement 1: Capturing FTP packets using Wireshark (20)
Step 1: Start a Wireshark capture.
a. Close all unnecessary network traffic, such as the web browser, to limit the amount
traffic during the Wireshark capture.
b. Start the Wireshark capture.
Step 2: Download the .txt file.
a. From the command prompt, enter ftp ftp.mcafee.com
b. Log into the FTP site for mcafee.com with user anonymous and no password.
c. Locate and download any .txt file.

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National University of Computer and Emerging Sciences Laboratory Manuals for Computer Networks (CL -307) Course Instructor Mr. Ibrahim Nadir Lab Instructor(s) Umer Shafqat Salman Shoaib CS-6E Spring 2020 Section Semester Department of Computer Science FAST-NU, Lahore, Pakistan Page 1 of 16 March 25th, 2020 Lab Manual 07 Objective: • Analyzing the FTP packets using Wireshark Lab Statement 1: Capturing FTP packets using Wireshark (20) Step 1: Start a Wireshark capture. a. Close all unnecessary network traffic, such as the web browser, to limit the amount traffic during the Wireshark capture. b. Start the Wireshark capture. Step 2: Download the .txt file. a. From the command prompt, enter ftp ftp.mcafee.com b. Log into the FTP site for mcafee.com with user anonymous and no password. c. Locate and download any .txt file. Page 2 of 16 March 25th, 2020 Step 3: Stop the Wireshark capture. Step 4: View the Wireshark Main Window Wireshark captured many packets during the FTP session to ftp.mcafee.com. To limit the amount of data for analysis, type tcp and ip.addr == 195.89.6.167 in the Filter. The IP address, 195.89.6.167, is the address for ftp.mcafee.com. Step 5: Analyze the packets Carefully analyze the packets in Wireshark windows and answer the following question: Use the FTP_Session.pcapng (Wireshark Capture File) to answer the questions below 1. FTP uses two port numbers: 20 and 21. Apply tcp.port==20 and tcp.port==21. Analyze the result and write down the ...
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