Currrent checks are done against the default interface, that is, the interface that was the default when the first check was done and then that interface was bound to the item. It'd be better to allow checks interfaces, so that it'd be possible (or at least implicitly easy) to detect that. Currently, you'll have to create specialised checks to do this even if Zabbix has the data and has had it for years.
I've asked about this before, years ago, but I don't know where that disappeared, perhaps the post was just deleted/forgotten after not answered, I don't know. It's still very much an issue that Zabbix only checks one interface by default.
I've asked about this before, years ago, but I don't know where that disappeared, perhaps the post was just deleted/forgotten after not answered, I don't know. It's still very much an issue that Zabbix only checks one interface by default.