Software Title: BandwidthD
Download Link: http://sourceforge.net/projects/bandwidthd/files/latest/download
Contact Them: none
License: Open Source, Free to use, Free to fork
BandwidthD monitors TCP/IP network usage and displays the data it has gathered in the form of graphs and tables over different time periods. Each protocol (HTTP, UDP, ICMP, etc) is color-coded for easier reading. BandwidthD runs discretely as a background service.
Installation is easy. Download and install Winpcap version 3.0 or above (you’ll already have this installed if you have Wireshark on the same box), unzip BandwidthD to a specified folder, edit the ../etc/bandwidthd.conf file accordingly, double click on the “Install Service” batch file and then start the BandwidthD services from the services.msc console. Once the service is running, give it some time to monitor network traffic and load the index.html page to start viewing bandwidth statistics
Basically this tool, tracks usage of TCP/IP network subnets and builds html files with graphs to display utilization. Charts are built by individual ip. Color Codes HTTP, TCP,UDP, ICMP, VPN, P2P, etc. Click on the release notes icon for the latest release for more info.