linkek — Cisco Salted MD5 crack; Managing Cisco Security

http://forum.insidepro.com/viewtopic.php?t=3597&sid=3a472f4ed755b70dd5e1c122ff4950dd
http://www.soldierx.com/tutorials/Using-John-Crack-Cisco-md5
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Too many secrets from ERNW: http://www.ernw.de/download/tomas.zip
Cain & Abel: http://www.oxid.it
John the Ripper: http://www.openwall.com/john/
mdcrack: http://c3rb3r.openwall.net/mdcrack/
PasswordsPro: http://www.passwordspro.com/download.html

Managing Cisco Security:

http://books.google.hu/books?id=45-9RHbToUQC&pg=PA290&lpg=PA290&dq=john+the+ripper+cisco+enable+crack&source=bl&ots=ECVemhNvGg&sig=RMALVx_iGsgT29RuaVw0YMBKL5o&hl=hu&ei=lWrVSuTjI5eStgep6qykAw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CAYQ6AEwAA#v=onepage&q=&f=false