Netflow on SubInterface

Question

We have a few interfaces where there is a physical interface but the IP address is assigned to a subinterface.  I apply the command "ip route-cache flow" to the physical interface as it will not allow me to configure this on the subinterface.    I cannot get NetFlow to work on these interfaces.   Any ideas??   Thanks

nafees.khan · Answer

I was also facing the same issue, post adding all the interfaces, netflow started showing proper data

mblanch · Answer

the ip flow ingress command worked!     Thanks for the assist on this.

kweise · Answer

In our config, I put the "ip flow ingress" command on the physical interface and Orion didn't see any flows from the subinterfaces.  I removed the "ip flow ingress" command from the physical interface and added it to the config of the subinterfaces.  With the command on the subinterfaces, we Orion started seeing the NetFlow data.  The other thing to check is to make sure you are monitoring the subinterfaces in Orion.  If the subinterfaces aren't selected as resources on the node, you won't be able to add them to NetFlow.