Zabbix server behind a reverse proxy

[Libexec]

Hey,

First I'm sorry for my "english", I'm going to try to do my best.



I have a Zabbix server behind a Stormshield reverse proxy. (VM Zabbix -> Reverse Proxy -> Customer FW -> Zabbix Proxy).
Zabbix server version is 5.2.6
Zabbix proxy version is 5.2.6.


So here is my problem:


172.31.100.1 is my Stormshield reverse proxy

/var/log/zabbix/zabbix_server



Here is my Zabbix proxy log:





Notice that I tried with an AWS instances (Zabbix server) and it works. I think the problem comes from the reverse proxy?
Is there any configuration that I have to do in Zabbix server configuration file to "allow" message from the reverse proxy?

Any idea?

Thanks