To run ntop for win32 I use an old Windows XP laptop (320MB RAM) as terminal-, web-, file-, print- and scanner server in my network and this laptop proofs to have enough resources to do this additional job.Īfter the installation is finished, you should have a new icon in the system tray called OPENXTRA Commander. You can find the easy to install OPENXTRA version on several places on the Internet like here I use the free unlimited version ntop for win32 v3.2 from OPENXTRA. This limitation does not exist in the Linux versions and the paid Windows version. The free binary version for Windows is limited to capturing only the first 2000 packets. The ntop Web site offers multiple versions (sources and binaries) of the package for download. In my first setup I used port 2055 but because this port was used by other applications I had to change to 9996 to make my installation stable. Port: The UDP port that will be used to send the netflow information.Ĭommon default ports for Netflow are 20. This computer must have a static IP address, or using a DHCP static lease. Server IP: The IP address of your computer that wil run ntop. Log into your router through your browser, than go to the Services | Services where you will find the RFlow / MACupd section. Rflow can monitor the available interfaces of the router, in my case these are br0 (Lan & Wlan), vlan0, eth1, Wlan0 and WAN. My router is running the DD-WRT v24-sp2 firmware (you need a version with rflow support).
The web interface for monitoring, configuration and administration make ntop easy to use and suitable for monitoring various kind of networks. Ntop is an open source network traffic monitoring tool that shows the network usage via a web browser. The netflow data is sent to a port of a computer (management server) on your LAN running a Netflow collector, in this case this is ntop. DD-WRT include the capability of running rflow, a Cisco Netflow data exporter implementation.
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