A few points:
- You're working with a legacy device that's no longer supported by Cisco
- The configuration requirements may vary depending on which version of software you're running
- On the ASA platform you're actually working with NSEL instead of Netflow
- If you have access to ASDM this is much easier
If you've already configured the flow destination, export delay, timeout, ACL, class-map, and policy-map correctly, I'm not sure what to tell you. Have you tried using the SolarWinds Netflow Configurator?
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