Why is the data not showing in the web console?

Flow data is not generating from a device in the web console. Wireshark was used to confirm the flows are being sent from the device to the poller and not blocked by the firewall.

Why is the data not showing in the web console?
A . device is not monitored by hybrid cloud observability (HCO) features
B . device is using IPv6 and HCO only supports IPv4
C . missing source address field in flow configurations
D . flow monitoring was not enabled as device type in web console settings

Answer: C