Jul 30 2012   11:18PM GMT

Cisco NetFlow – Router

Joshua Wood Joshua Wood Profile: Joshua Wood

Hi all,

NetFlow collection is great. The NetFlow protocol allows for collection of layer 3 data that flows through a port. Source IP, destination IP, source port and destination port are some of the things that you can collect with NetFlow. Below is a basic configuration that can be used with a Cisco router.

On the interface
Interface fa0/0
Ip flow ingress
Ip flow egress

In the global config
ip flow-export source Loopback 1
ip flow-export version 9
ip flow-export destination 9996

Until next time,
TechStop (JW)

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