PCISP

ntop is a network probe that shows network usage in a way similar to what top does for processes. In interactive mode, it displays the network status on the user's terminal. In Web mode, it acts as a Web server, creating an HTML dump of the network status. It sports a NetFlow/sFlow emitter/collector, an HTTP-based client interface for creating ntop-centric monitoring applications, and RRD for persistently storing traffic statistics.

License: GNU General Public License (GPL)

Changes:
A new cpacket plugin was added. Perl support was
improved. A Perl installation option was added
into the makefile. JSON was fixed. Initial Yahoo
YUI support was added. Fixes were done for Vlan
check, SNMP support, and for
ETTER_PASSIVE_DOWNLOAD_FROM. Cosmetic changes were
made.