For a BESClient listening on UDP 52311 under the same situation where IPV6 is default, a netstat shows udp6 listening on 52311:
[root@ ~]# netstat -an | grep 52311
tcp6 0 0 x.x.x.x:54802 x.x.x.x:52311 TIME_WAIT
udp6 0 0 :::52311
When I send a “Refresh Now” to the client from the BES Console, the client doesn’t receive it because it is listening on udp6, even though Ipv4ThenIpv6 is the default value. Does BigFix infrastructure only use IPV4 for UDP?