sniffing spofing

good tuto about sniffing arp and how to stop it
http://www.authsecu.com/sniffers-reseaux-commutes/sniffers-reseaux-commutes.php

http://www.brighthub.com/computing/smb-security/articles/17766.aspx
tuto about spoofing
http://www.antiarp.com/english_95.html

tool to snif spof
switch sniffer
 
 http://www.se7ensins.com/forums/topic/4464-router-bridging-zone-alarm-pro-switchsniffer-v1320/
to download
http://yotafile.com/inkp5yhzpe14

cain

http://www.oxid.it/cain.html

networkminer
http://www.netresec.com/?page=Blog&month=2011-02&post=NetworkMiner-Video-Tutorials-on-the-Intertubes
http://sourceforge.net/projects/networkminer/files/networkminer/NetworkMiner-1.1/NetworkMiner_1-1.zip/download?use_mirror=freefr

winarpspoofer
http://www.4shared.com/file/CiEI6G-n/WinArpSpoofer053.html?cau2=403tNull

Software to stop spoffing 

Antiarp
http://www.bramjnet.com/vb3/showthread.php?t=398230



Promiscan
http://www.download3000.com/download-promiscan-count-reg-4213.html