I move to GRE Tunnel over IPSEC.
Now i have one more interface on pfsense and i can ping remote side with it from GUI.
I left GRE Interface on "none", i add gateway for GRE and add a route for remote LAN Subnet.
From pfsense box 2 (192.168.201.222), i can ping my web server 192.168.1.6 and from pfsense box 1 (192.168.1.254), i can ping pfsense box 1 (192.168.201.222).
I can ping with GRE IP adress (172.31.2.10)
But from server behind pfsense, i can't ping remote side ?
It's a problem with outbound NAT may be ?