site to site ipsec pfsense - nethsecurity

[vettalex]

Hi everyone, I'm trying to create an ipsec tunnel between a nethsecurity firewall (centos 7 base) and my pfsense.
On both I opened the port 500udp and 4500udp / tcp on their routers.
The support of nethsecurity says that the request starts but is refused by the pfsense. Could someone help me connect please? I'm hitting my head ...

Log Error PfSense: