OPNSense and 3CX

[waltersantos]

Guys, I need some help releasing some ports on the 3CX IP PBX.

Scenario:
Firewall: OPNsense 19.7.7-amd64 (virtualized by Proxmox)
IP PBX: 3CX Pro 16.0.493 (Virtualized by Proxmox)
Internet: Fiber 100MB Dynamic
VLAN: No

The internet provider router is like Bridge and authentication is like PPPoE in OPNSense. Navigation on all servers and internal networks that's ok. 3CX has a firewall checker that checks whether all ports required for operation are open.

Before starting the validation I followed the 3CX tutorial itself showing what are the necessary changes in FW for working (in the case pfsense) the procedure followed was this: https://www.3cx.com/docs/pfsense-firewall/

But even after performing the procedure, some ports do not work.

I tried the procedures in this post https://forum.opnsense.org/index.php?topic=12793.msg59243#msg59243 and this one here https://forum.opnsense.org/index.php?topic=7299.msg32981 # msg32981, however, to no avail.

Live view it gets a Deny WAN on "dir in". When I make a rule releasing, the error persists in 3CX, but nothing else appears in the live view (neither denying nor allowing).

Thanks in advance!