Hello,
if you are using native IOS, definitely no.
It is necessary use ip route-cache flow or
ip flow ingess on all L3 interfaces with assigned IP address (use show ip interface brief) and enable mls nde ...
See:
http://netflow.caligare.com/configuration.htm
for configuration detail and recommendations.
Kind reagards
Jan Nejman
Caligare, Co.
http://www.caligare.com/
