Data Packet Sniffer Programming

In this concluding part of the packet sniffing series, we will look at how to parse the Data in a TCP packet. It is important to understand here that this data may contain headers of higher protocols such as HTTP. It is left to the user as an exercise to write parsers for these higher layer protocols. In this video we will find the offset of the data from the beginning of the packet and display the packet in the form of a hex dump.

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1. Raw sockets basics presentation

2. Generic Packet Sniffer

3. Packet Injection Programming Basics Presentation

4. Ethernet / IP / TCP / Data Packet Injection Programming

5. ARP Packet Injection (Advanced)

6. Using Packet Sniffers - Tcpdump and Wireshark Tutorial

Vivek Ramachandran is a security evangelist and has been working in computer security related fields for the past 7 years. In 2007, Vivek spoke at world renowned conferences Defcon (WEP Cloaking Exposed) and Toorcon (The Caffe Latte Attack). The discovery of the Caffe Latte Attack was covered by CBS5 news, BBC online, Network World etc news agencies.In 2006, Vivek was announced as one of winners of the Microsoft Security Shootout contest held in India among 65,000 participants. He has also been a recipient of a Team Achievement at Cisco Systems for his work on 802.1x and Port Security modules on the Catalyst 6500 switches. Currently he spends all of his time maintaining Security- Freak.Net , SecurityTube.Net and is the founder of an online startup (currently in stealth mode). Vivek, is a Bachelor in Electronics and Communications Engineering from the prestigious Indian Institute of Technology, Guwahati.You can contact him at vivek[at]securitytube.net