What expression to write in zabbix trigger for icpm request from host1 to host2?

Question

Ping

Good day!
The task is to make an icmp request to zabbixe. But the whole difficulty is that the request should not come from the Zabbix server to host 2, but from host 1 to host 2.
ps I just can't figure out how to write this expression. and if ping does not pass from host1 to host2, then zabbix notifies about it on the connection map.
Is this even possible?

Answer 1

Possibly through a custom script and UserParameter on host1. In the script - ping to host2 (or to any address passed to the script via a parameter) and grep the number of successful pings. See the documentation, there is almost such an example.