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PACKET FORGER
 
ARDUINO BASED WIRESHARK.
USING WS5100 NETWORK INTERFACE CARD & ARDUINO MEGA
ARDUINO-DELUXE
This project started as a SNMP trap receiver & generator for a ARDUINO based network tester, and evolved from there. We use the Arduino MEGA simply because of the additional memory capabilites, a single Ethernet Frame can be anything from 64 bytes to 1518 bytes 1522 bytes if you include the VLAN tag or even more for Jumbo frames.
The UNO has 2K of SRAM for variable space, so you can see we soon run out of space, we can pretty much fill that up with a single frame! Whilst the MEGA isn't exactly packed with memory, but there is 8 times as much Flash, 4 times as much SRAM and 4 times as much EEPROM...not to mention the additional Digital, Analog and Serial ports.
These units we sell for around £8, so they don't really break the bank the bank, but they are pretty much essential for this project.

Ethernet Shield
Pictured above is the WS5100 ethernet shield which bolt directly on top of your MEGA. The first thing to do is make sure you have the correct LIBRARIES for your ARDUINO installed.
PROJECTS
SPECTRUM ANALYZER PACKET FORGER
Spectrum PacketForge
Arduino based Stereo Spectrum analyzer using MSGEQ7 chips for the FFT and an averaging algorithm to make make 14 channels with peak hold and detection. W5100 based 'Wireshark' type network analyser. SNMP trap detector, ARP replay and packet manipulation.
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