Firewall blocking ports on sencond trusted network


#1

I am trying to setup Zabbix monitor on my servers.
There are two computers, Zabbix Server and Zabbix Agent.
I add the Zabbix Server’s IP as a Trusted (Exclude from Firewall) in the firewall of the Agent.
I add the Zabbix Agent’s IP as a Trusted (Exclude from Firewall) in the firewall of the Servre.
I also added port 10050 TCP (Zabbix port) as an additional Custom Service for Internet and Local on both machines.
If I turn off the firewall I can talk to the Agent from the server.
If I enable the firewall on either I get a timeout.
I did a packet capture and I see re-transmits with firewall enabled.

Any clues?