I'm trying to figure out which interfaces I should configure on my Riverbed devices in order to properly export NetFlow information. Each device has 5 ports: primary, lan0_0, lan0_1, wan0_0, and wan0_1. lan0_1 and wan0_1 aren't connected so I can disregard those. The primary interface is the management interface (IIRC) so I can disregard that one. That just leaves lan0_0 and wan0_0. Should I capture data from both or just one of them?