Additional sensors use Cisco-specific NetFlow technology for traffic monitoring. From ADSL to VPN connections, all the way to Voice over IP applications: PRTG ensures the quality of your service. With PRTG, everyone can work with peace of mind. We expect …
NetFlow is a feature that was introduced on Cisco routers around 1996 that provides the ability to collect IP network traffic as it enters or exits an interface. By analyzing the data provided by NetFlow, a network administrator can determine things such as the source and destination of traffic, class of service, and the causes of congestion. What is NetFlow? - Telcomanager Apr 20, 2018 NetFlow Configuration Guide, Cisco IOS Release 15S - NDE Flows for MPLS VPN traffic received with aggregate label that is not in the VPN CAM are populated in the NetFlow cache by configuring the flow hardware mpls-vpn ip vrf-id command for each VPN VRF on the router in global configuration mode.
NetFlow Configuration Guide, Cisco IOS Release 15S - NDE
Netflow is another option for bandwidth usage analysis. Netflow is a standard means of traffic accounting supported by many routers and firewalls. Netflow collector running on a host inside the network is required to collect the data. pfSense software can export Netflow data to the collector using the softflowd package or the pfflowd package.
Netflow - Cisco Networking, VPN Security, Routing
Oct 15, 2012 Exporting NetFlow over IPSec VPN? Cisco router - THWACK I have many routers exporting NetFlow traffic without problem. I recently set up a Cisco 2801 over an IPSec VPN and configured NetFlow. I am able to ping the Orion server from the router (using source ping obviously), and my NetFlow config looks good. Oddly enough, the NetFlow traffic is NOT making it to the server (checked via Wireshark). Free Cisco monitoring software PRTG