Configuring Netflow: Cisco

Follow these steps to enable Cisco devices to export NetFlow v9 records to a Sinefa Instance.

Note 1: Ensure that the time on the Cisco device is accurate. An incorrect date or time on the device will have adverse effects on the reports.

Note 2: Select a 'flow-export source' interface that is pre 'Network Address Translation' so that you can also see the internal IP addresses if the router is performing NAT.

Router> enable
Router# configure terminal
Router(config)# ip flow-export source GigabitEthernet0/1
Router(config)# ip flow-export version 9
Router(config)# ip flow-cache timeout active 1
Router(config)# ip flow-cache timeout inactive 15
Router(config)# ip flow-export destination <Sinefa_Instance_IP_Address> 2055
Router(config)# interface GigabitEthernet0/1
Router(config-if)# ip flow egress
Router(config-if)# ip flow ingress
Router(config-if)# ip route-cache flow 

Note: Netflow is supported on all Cisco routers and only these Cisco Catalyst series switches: 45xx, 55xx, 6xxx. The following devices do not support NetFlow: Cisco 2900, 3500, 3660, 3750.

More detailed steps available from Cisco here: http://www.cisco.com/en/US/docs/ios/ios_xe/netflow/configuration/guide/cfg_nflow_data_expt_xe.html

See Also
Sinefa Best Practice Guide
Probe Networking Setup