I'm able to connect the SNMP now.
I changed the snmp-server host inside ip address to the computer that has the RTNA installed and now it's working.
I can see Traffic In and Out data for the outside and inside interface of the ASA.
But I can not click on Start Flow Capture. The error below shows up:
"Netflow is not detected on the selected interface. Please select another or configure the interface to send Netflow data to the host Netflow Realtime is running on."
I checked the support logs for previous cases like this. Have you tried doing a network trace to analyze the SNMP traffic on the node?
I am running into the same issues with my ASA. I get the Traffic In and Traffic Out numbers through SNMP polling, but cannot start the Netflow Analyzer.
I ran a packet capture on the traffic and noticed that the ASA is using Netflow version 9, whereas other Cisco devices are using version 5. I have no issues running the Analyzer on those devices.
Is it because the tool is not compatible with version 9 that analyzing the traffic is unavailable? If so, how soon until a new release is available that can support it?
Netflow V9 will be considered for a future release.