Cisco 2900 ISR Configuration

    Use the following commands to enable the Netflow on Cisco 2900 Series Integrated Services Routers (ISR).

    ip flow-export destination {hostname|ip_address} 9996
    ip flow-export source {interface}
    ip flow-export version 5
    ip flow-cache timeout active 1
    ip flow-cache timeout inactive 15
    snmp-server ifindex persist

    enable the below command on all the layer 3 interfaces.

    interface {interface} {interface_number}
    ip flow ingress