Cyber Security Internship Task 5 – Wireshark Packet Capture :

Task Overview :

This submission is for Task 5 of my Elevate Labs Cyber Security Internship, which involves capturing and analyzing network traffic using Wireshark.

i] Steps Performed :

• Installed Wireshark on Windows and started a live capture on the Wi-Fi interface.

• Browsed websites and generated network traffic, allowing capture to run for about one minute.

• Filtered captured packets by protocol to identify key network protocols.

• Saved the capture file as .pcapng for analysis and submission.

ii] Key Protocols Identified :

TCP: Provides reliable, ordered data transmission between network devices.

ARP: Resolves IP addresses to physical MAC addresses within the local network.

ICMPv6: Used for error messages and network diagnostics in IPv6 networks.

DNS: Translates domain names to IP addresses for routing internet traffic.

iii] Network Capture :

iv] Summary of Findings :

• Observed packet exchanges for different protocols including TCP handshakes, ARP requests, DNS queries, and encrypted traffic using TLS.

• Each protocol plays a critical role in supporting network communication and securing data.

v] Files Included :

• network_capture.pcapng: Wireshark packet capture file.

• screenshot.png: Screenshots of Wireshark interface showing packet list.

• README.md: This summary and explanation document.