I managed to make my vpn to connect with the new Connection mode between to opnsense firewall.
But 2 little problems remains
1-
My 2 sites are with dynamic ip. The ipsec config i mage is with a PSK. To make it work i have to put directly the ip address in the Pre-Shared keys Section in both firewall to make it work instead of the dynamic ip service i use. If i use the dynamic ip host like myhost1.noip.com.
2- Now that the vpn is connected, no data go across the vpn at all. in my phase 2 section i have put 0.0.0.0/0 as local and remote subnet in both firewall. And in firewall rules ipsec interface i allow all in both firewall.
thank you for your help