I'm using pfSense (23.01), Zabbix (6.2) and pfSense Zabbix Proxy 62. I connect 2 remote sites together via a Wireguard VPN. I've setup the pfSense Proxy package but receive this error message in the logs: cannot send proxy data to server at "10.40.40.2": connection is not allowed. The IP address is the Zabbix server across the VPN. When I test SNMP from the Zabbix server site to the remote site without using the proxy the SNMP information is successfully passed. All firewall rules are open. I've ran out of ideas how to get this working. Can anyone help?