AS number data

Hey Guys,

I'm playing with the new beta version to get AS number reports. I'm using a cisco 7200 router, and I have enabled
ip route-cache flow
on my interface.

And in my router I have set:
ip flow-export version 5 peer-as
ip flow-export destination 10.0.0.2 9996

Basically what i want to see is traffic IN and OUT for every peering I have on my router.

With these settings my inbound traffic seems to be accurate, but my outbound traffic is like 2 bits/sec, which is impossible at all.
It seems like it's only accounting inbound and no outbound.

Does anybody have an idea about what could be wrong here ?

Thanks you
iep