Robust and flexible VPN network tunnelling
TraceMAC is a command-line Layer 2 traceroute for Cisco switches
IP notification and information of your remote computer by email
Snare Enterprise: bit.ly/Snare-Trial
Free Syslog Server for Windows with a graphical user interface
Cobrax Trojan - 1.0
Visual Syslog Server for Windows with a graphical user interface.
The Network Forensics Tool
Logs IP to IP contact, number of packets, bytes.