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Cisco NetFlow on IOS

Welcome Forums Integrations Cisco NetFlow on IOS

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  • #1621
    Mike RiforgiateMike Riforgiate
    Keymaster

    Commands to enable NetFlow on Cisco IOS

    • enable
    • configure terminal
    • ip flow-export destination 2055
    • ip flow-export source    (e.g. use a Loopback interface or routable interface to WitFoo appliance)
    • ip flow-export version 9  (if version 9 does not take, use version 5)
    • ip flow-cache timeout active 1
    • ip flow-cache timeout inactive 15
    • snmp-server ifindex persist
    •  

    • Enable NetFlow on each layer-3 interface you are interested in monitoring traffic for: interface ip flow ingress
    • exit
    • write memory

    Wait at least 10 minutes then on the WitFoo Search interface, run a search on an IP address that should have been monitored by the NetFlow exporter. It should show up in the communications tab.

    Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-mt/fnf-15-mt-book.html

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