http://www.tallsoft.com/cdpmonitor.htm
Cisco CDP Monitor is a CDP agent for windows host, with it you can monitor all connective Cisco devices .
and you can also discover all the connected computers by a simple command of "show cdp neighbors" in Cisco network devices .
So the LAN Management Solution and the Routed WAN Management Solution of CiscoWorks 2000 Campus Manager can get these
information and show the total topology of your network in graphics mode, not only the Cisco network devices, but also your
windows hosts. With Cisco CDP Monitor you can monitor windows hosts in Cisco's Network Management software.