Cisco filebeat module not listening on port as configured

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Looks like someone else had the same issue: Filebeat Cisco Module: Listening on IPV6 only?

So in the cisco.yml file, I specified the host IP instead of 0.0.0.0. That seems to have helped:

netstat -nulp
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
udp        0      0 127.0.0.53:53           0.0.0.0:*                           -
udp        0      0 [host IP]:9002         0.0.0.0:*                           -

I tried to netcat a message:

$ echo ‘hello’ | nc -v -u -w 0 [host IP] 9002
Connection to [host IP] 9002 port [udp/*] succeeded!

However, I see nothing in the logs.