Active Agents using Autoregistration show port 10050 instead of 10051

[dangelsaurus]

I've noticed when using auto registration with a server that is using active checks, it's showing the interface as xxx.xxx.xxx.xxx: 10050 instead of 10051. Though active checks ARE working.

I've gone as far as restricting the zabbix server so that only port 10051 is open, with no allowed incoming connections on the machine with the active agent running, and sure enough I'm seeing data come through and see connections to port 10051 on the zabbix server from the agent.

so why would the interface show 10050 when active checks are enabled and it's using 10051? I know the documentation says "If no port value is received, 10050 is used", but clearly port 10051 is being used?

[Atsushi]

Port number 10050 is the default port number for passive check. If only active check items exist for the target host, the interface registered with that port number 10050 will not be used. In other words, automatic registration, acquisition of the item list, and transmission of the acquired item value are processed by connecting to the port number 10051 on the Zabbix server from the Zabbix agent on the monitoring target.
If the target host has an item of type "Zabbix Agent", Zabbix server tries to get the value of the item by accessing port number 10050 of the monitored host.