NetFlow ISR 4300 Series Router sample configuration

This is an example of how a configuration looks on a Cisco ISR 4300 Series Router (Cisco IOS XE 3S)

1. Configure the record with following commands:

   flow record NTA
   description config for NTA
   match ipv4 tos
   match ipv4 protocol
   match ipv4 source address
   match ipv4 destination address
   match transport source-port
   match transport destination-port
   collect transport tcp flags
   collect interface input
   collect interface output
   collect counter bytes long
   collect counter packets long

2. Configure the exporter with following commands:

   flow exporter NTA
   description Exporter for NTA
   source Loopback0
   destination <Solarwinds IP>
   transport udp 2055
   template data timeout 60

3. Configure the monitor with following commands:

   flow monitor NTA
   exporter NTA
   record NTA
   cache timeout active 60

4. Attach to the interfaces you plan to monitor:

   ip flow monitor NTA input
   ip flow monitor NTA output

Note: Use only input or output or both of them according to your NetFlow monitoring topology.

If only one interface is configured to export Netflow user both commands on the interface.  

If there are multiple interfaces configured to export Netflow only use the " IP flow monitor 'name' input" commands on all interface.