Viproy VoIP Pen-Test Kit - Cisco CDP Testing Module

This modules is developed to send custom Cisco CDP packets. It can be used to attack Cisco VLAN environment or voice VLANs.  This was ported from Viproy (http://www.viproy.com)

# Validation

 - [x] Use the module with default options as non-root.  It should fail gracefully
 - [x] Use the module with default options as root.  It should send properly formed CDP packets (validate with wireshark)
 - [x] Use the module as root, changing the various options.  It should send properly formed CDP packets (validate with wireshark) that reflect the set options.