Ethernet-Packet-Sniffer

1. Abstract

• This work aims at capturing all the ethrnet packets in a network using python Raw Sockets.
• The captured packets are parsed and their Ethernet, IP ,TCP ,UDP Headers are printed
• This packet sniffer can be exteded for other protocols as well.

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2. Implementation

• Step 1 : Capture packets in LAN network using python Raw Sockets
• Step 2 : Parse Ethernet Header and identify the protocol used
• Step 3 : If the prtocol is IP, parse IP header to identify the next protocol
• Step 4 : The data is further parsed if the identified protocol is either TCP or UDP.

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3. Setup Requirements

• Language: Python
• Interpreter: 2.x or 3.x

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4. Run the Application

python packetSniffer.py

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5. References

1. Etheret Header
2. IP Header
3. TCP Header
4. UDP Header
5. Cybrary
6. Python Struct Module
7. Python Socket Module
8. Python binascii Module

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6. Acknowledgements

• Rahul